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Rolling bearings SKF mobile apps Apple AppStore SKF mobile apps are available from both Apple App Store and Google Play. These apps provide useful information and allow you to make critical calculations, providing SKF Knowledge ­Engineering at your fingertips. Google Play ® SKF, Duoflex, CARB, ICOS, INSOCOAT, KMT, KMTA, Monoflex, Multiflex, NoWear, SensorMount, SKF Explorer, SYSTEM 24 and Wave are registered trademarks of the SKF Group. ™ AMP Superseal 1.6 Series is a trademark of the TE connec­ tivity family of companies Apple is a trademark of Apple Inc., registered in the US and other countries. Google Play is a trademark of Google Inc. © SKF Group 2013 The contents of this publication are the copyright of the pub­ lisher and may not be reproduced (even extracts) unless prior written permission is granted. Every care has been taken to ensure the accuracy of the information contained in this publica­ tion but no liability can be accepted for any loss or damage whether direct, indirect or consequential arising out of the use of the information contained herein. PUB BU/P1 10000/2 EN ·  August 2013 This publication supersedes publications 6000 EN, 6000/I EN, PUB PSD/P1 06003 EN, PUB BU/P1 10000 EN and PUB BU/P1 10000/1 EN. Certain image(s) used under license from Shutterstock.com Notice For important updates and changes to this catalogue, go to skf.com/10k Rolling bearings Rolling bearings Unit conversions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Foreword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This is SKF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SKF – the knowledge engineering company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9 14 16 Principles of bearing selection and application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A Bearing basics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting rolling bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bearing types and designs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boundary dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic bearing designation system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic selection criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 22 23 26 40 42 46 B Selecting bearing size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A systems approach to bearing selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bearing life and load ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting bearing size using the life equations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic bearing loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting bearing size using static load carrying capacity. . . . . . . . . . . . . . . . . . . . . . . . . Calculation examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SKF calculation tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SKF Engineering Consultancy Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SKF life testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 62 63 64 84 87 90 92 94 95 C Friction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Estimating the frictional moment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The SKF model for calculating the frictional moment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power loss and bearing temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 98 99 114 114 D Speeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basics of bearing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limiting speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special cases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vibration generation at high speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 118 118 126 127 128 2 E Bearing specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tolerances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bearing internal clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Materials for rolling bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 132 132 149 150 F Design considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bearing systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radial location of bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Axial location of bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of associated components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting internal clearance or preload. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealing solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 160 165 204 210 212 226 G Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basics of lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Grease lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubricating greases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SKF greases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relubrication procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 240 242 244 249 252 258 262 H Mounting, dismounting and bearing care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dismounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bearing storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271 272 275 285 291 291 Product data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 1 Deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 1.1 Single row deep groove ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Capped single row deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 ICOS oil sealed bearing units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Single row deep groove ball bearings with a snap ring groove. . . . . . . . . . . . . . . . 1.5 Single row deep groove ball bearings with a snap ring and shields. . . . . . . . . . . . 1.6 Stainless steel deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7 Capped stainless steel deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 Single row deep groove ball bearings with filling slots. . . . . . . . . . . . . . . . . . . . . . 1.9 Single row deep groove ball bearings with filling slots and a snap ring. . . . . . . . . 1.10 Double row deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 2 Y-bearings (insert bearings). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 2.1 Y-bearings with grub screws, metric shafts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Y-bearings with grub screws, inch shafts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Y-bearings with an eccentric locking collar, metric shafts. . . . . . . . . . . . . . . . . . . 2.4 Y-bearings with an eccentric locking collar, inch shafts. . . . . . . . . . . . . . . . . . . . . 2.5 SKF ConCentra Y-bearings, metric shafts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6 SKF ConCentra Y-bearings, inch shafts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421 322 346 374 376 382 386 394 410 414 416 458 460 464 466 468 469 3 2.7 2.8 2.9 Y-bearings with a tapered bore on an adapter sleeve, metric shafts. . . . . . . . . . . 470 Y-bearings with a tapered bore on an adapter sleeve, inch shafts. . . . . . . . . . . . . 471 Y-bearings with a standard inner ring, metric shafts. . . . . . . . . . . . . . . . . . . . . . . 472 3 Angular contact ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 3.1 Single row angular contact ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Double row angular contact ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Capped double row angular contact ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 Four-point contact ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475 4 Self aligning ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 4.1 Self-aligning ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Sealed self-aligning ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Self-aligning ball bearings with an extended inner ring. . . . . . . . . . . . . . . . . . . . . 4.4 Self-aligning ball bearings on an adapter sleeve. . . . . . . . . . . . . . . . . . . . . . . . . . . 537 5 Cylindrical roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 5.1 Single row cylindrical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 High-capacity cylindrical roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 Single row full complement cylindrical roller bearings. . . . . . . . . . . . . . . . . . . . . . 5.4 Double row full complement cylindrical roller bearings. . . . . . . . . . . . . . . . . . . . . 5.5 Sealed double row full complement cylindrical roller bearings. . . . . . . . . . . . . . . 567 6 Needle roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 6.1 Needle roller and cage assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Drawn cup needle roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3 Needle roller bearings with machined rings with flanges, without an inner ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4 Needle roller bearings with machined rings with flanges, with an inner ring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 Needle roller bearings with machined rings without flanges, without an inner ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.6 Needle roller bearings with machined rings without flanges, with an inner ring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7 Alignment needle roller bearings, without an inner ring . . . . . . . . . . . . . . . . . . . . 6.8 Alignment needle roller bearings with an inner ring. . . . . . . . . . . . . . . . . . . . . . . . 6.9 Needle roller / angular contact ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10 Needle roller / thrust ball bearings, full complement thrust bearing. . . . . . . . . . . 6.11 Needle roller / thrust ball bearings, thrust bearing with a cage. . . . . . . . . . . . . . . 6.12 Needle roller / cylindrical roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . 6.13 Needle roller bearing inner rings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.14 Needle rollers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Tapered roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 7.1 Metric single row tapered roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Inch single row tapered roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 Single row tapered roller bearings with a flanged outer ring. . . . . . . . . . . . . . . . . 7.4 Matched bearings arranged face-to-face. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 506 522 526 530 552 560 562 564 604 640 644 656 668 673 722 730 744 758 770 774 776 778 780 784 786 788 790 794 797 824 842 864 866 7.5 7.6 Matched bearings arranged back-to-back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 872 Matched bearings arranged in tandem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 876 8 Spherical roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 8.1 Spherical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2 Sealed spherical roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3 Spherical roller bearings for vibratory applications. . . . . . . . . . . . . . . . . . . . . . . . 8.4 Spherical roller bearings on an adapter sleeve. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 Spherical roller bearings on a withdrawal sleeve. . . . . . . . . . . . . . . . . . . . . . . . . . 8.6 Sealed spherical roller bearings on an adapter sleeve. . . . . . . . . . . . . . . . . . . . . . 9 CARB toroidal roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 9.1 CARB toroidal roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2 Sealed CARB toroidal roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.3 CARB toroidal roller bearings on an adapter sleeve. . . . . . . . . . . . . . . . . . . . . . . . 9.4 CARB toroidal roller bearings on a withdrawal sleeve . . . . . . . . . . . . . . . . . . . . . . 10 Thrust ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 10.1 Single direction thrust ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 Single direction thrust ball bearings with a sphered housing washer. . . . . . . . . . 10.3 Double direction thrust ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4 Double direction thrust ball bearings with sphered housing washers. . . . . . . . . . 879 904 928 936 940 946 954 957 980 996 1000 1004 1009 1016 1026 1030 1034 11 Cylindrical roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1037 Product table 11.1 Cylindrical roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1048 12 Needle roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1057 Product tables 12.1 Needle roller and cage thrust assemblies and appropriate washers. . . . . . . . . . . 1070 12.2 Needle roller thrust bearings with a centring flange and appropriate washers . . 1074 13 Spherical roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1077 Product table 13.1 Spherical roller thrust bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1090 14 Track runner bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 14.1 Single row cam rollers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.2 Double row cam rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.3 Support rollers without flange rings, without an inner ring. . . . . . . . . . . . . . . . . . 14.4 Support rollers without flange rings, with an inner ring. . . . . . . . . . . . . . . . . . . . 14.5 Support rollers with flange rings, with an inner ring . . . . . . . . . . . . . . . . . . . . . . . 14.6 Cam followers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1099 1126 1128 1130 1132 1134 1140 15 Engineered products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1149 15A Sensor bearing units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1151 Product table 15A.1 Motor encoder units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1166 5 15B Bearings for extreme temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 15B.1 Single row deep groove ball bearings for extreme temperatures . . . . . . . . . . . . . 15B.2 Y-bearings for extreme temperatures, metric shafts. . . . . . . . . . . . . . . . . . . . . . . 15B.3 Y-bearings for extreme temperatures, inch shafts. . . . . . . . . . . . . . . . . . . . . . . . . 15C Bearings with Solid Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15D SKF DryLube bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15E INSOCOAT bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 15E.1 INSOCOAT deep groove ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15E.2 INSOCOAT cylindrical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15F Hybrid bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 15F.1 Hybrid deep groove ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15F.2 Sealed hybrid deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15F.3 XL hybrid deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15F.4 Hybrid cylindrical roller bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15G NoWear coated bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15H Polymer ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 15H.1 Polymer single row deep groove ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15H.2 Polymer thrust ball bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Bearing accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product tables 16.1 Adapter sleeves for metric shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.2 Adapter sleeves for inch shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.3 Adapter sleeves with inch dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.4 Withdrawal sleeves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5 KM(L) and HM .. T lock nuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.6 MB(L) lock washers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.7 HM(E) lock nuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.8 MS locking clips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.9 N and AN inch lock nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.10 W inch lock washers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.11 PL inch locking plates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.12 KMK lock nuts with an integral locking device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.13 KMFE lock nuts with a locking screw. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.14 KMT precision lock nuts with locking pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.15 KMTA precision lock nuts with locking pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.16 KMD precision lock nuts with axial locking screws. . . . . . . . . . . . . . . . . . . . . . . . . 1169 1178 1182 1183 1185 1191 1205 1212 1214 1219 1230 1232 1236 1238 1241 1247 1262 1266 1269 1290 1298 1304 1310 1316 1318 1320 1324 1326 1330 1332 1333 1334 1336 1338 1340 Indexes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1342 Text index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1343 Product index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1364 6 7 Unit conversions Unit conversions 8 Quantity Unit Conversion Length inch foot yard mile 1 mm 1m 1m 1 km 0.03937 in. 3.281 ft. 1.094 yd. 0.6214 mi. 1 in. 1 ft. 1 yd. 1 mi. 25,40 mm 0,3048 m 0,9144 m 1,609 km Area square inch square foot 1 mm2 1 m2 0.00155 sq-in 10.76 sq-ft 1 sq-in 1 sq-ft 645,16 mm2 0,0929 m2 Volume cubic inch cubic foot imperial gallon US gallon 1 cm 3 1 m3 1l 1l 0.061 cu-in 35 cu-ft 0.22 gallon 0.2642 US gallon 1 cu-in 1 cu-ft 1 gallon 1 US gallon 16,387 cm 3 0,02832 m 3 4,5461 l 3,7854 l Speed, velocity foot per second mile per hour 1 m/s 1 km/h 3.28 ft/s 0.6214 mph 1 ft/s 1 mph 0,30480 m/s 1,609 km/h Mass ounce pound short ton long ton 1g 1 kg 1 tonne 1 tonne 0.03527 oz. 2.205 lb. 1.1023 short ton 0.9842 long ton 1 oz. 1 lb. 1 short ton 1 long ton 28,350 g 0,45359 kg 0,90719 tonne 1,0161 tonne Density pound per cubic inch 1 g/cm 3 0.0361 lb/cu-in 1 lb/cu-in 27,680 g/cm 3 Force pound-force 1N 0.225 lbf. 1 lbf. 4,4482 N Pressure, stress pounds per square inch 1 MPa 1 N/mm2 1 bar 145 psi 145 psi 14.5 psi 1 psi 6,8948 ¥ 10 3 Pa 1 psi 0,068948 bar Moment pound-force inch 1 Nm 8.85 lbf-in 1 lbf-in 0,113 Nm Power foot-pound per second horsepower 1W 1 kW 0.7376 ft-lbf/s 1.36 hp 1 ft-lbf/s 1 hp 1,3558 W 0,736 kW Temperature degree Celsius t C = 0.555 (t F – 32) Fahrenheit t F = 1,8 t C + 32 Foreword This catalogue contains the standard assort­ ment of SKF rolling bearings typically used in industrial applications. To provide the highest levels of quality and customer service, these products are available worldwide through SKF sales channels. For information about lead times and deliveries, contact your local SKF representative or SKF Authorized Distributor. The data in this catalogue reflect SKF’s state-of-the-art technology and production capabilities as of 2012. The data contained within may differ from that shown in earlier catalogues because of redesign, technological developments, or revised calculation methods. SKF reserves the right to continually improve its products with respect to materials, design and manufacturing methods, some of which are driven by technological developments. Getting started This catalogue contains detailed information about standard SKF rolling bearings, several special engineered products and bearing accessories. Engineered products include motor encoder units, which can measure the speed and direction of rotation, polymer bear­ ings and rolling bearings designed to fulfil add­itional requirements, such as: • extreme temperatures • electrical insulation • dry lubrication • insufficient lubrication • rapid speed changes • high vibration levels • oscillating movements for a particular application. In this section, bearing service life, speed capabilities, fric­ tion, general design considerations and lubri­ cation are discussed in detail. Installation and maintenance information is also included. More practical information about mounting and maintenance is provided in the SKF bearing maintenance handbook (ISBN 978-91-978966-4-1). The latest developments The main content updates compared to the previous catalogue include the addition of Y-bearings and needle roller bearings as well as the following featured products: SKF Energy Efficient bearings To meet the ever-increasing demand to reduce energy use, SKF has developed the SKF Energy Efficient (E2) performance class of rolling bearings. SKF E2 bearings are charac­ terized by a frictional moment in the bearing SKF Energy Efficient bearings are identified by the designation prefix E2. The first section, which contains general tech­ nical information, is designed to help the reader select the best, most effective products 9 Foreword that is at least 30% lower when compared to a same-sized SKF standard bearing. High-capacity cylindrical roller bearings SKF high-capacity cylindrical roller bearings combine the high load carrying capacity of full complement bearings and the high speed capability of bearings with a cage. They are designed for applications such as industrial gearboxes, gearboxes in wind turbines and mining equipment. SKF high-capacity cylindrical roller bearing SKF DryLube bearings SKF DryLube bearings are a new option for extreme temperature applications. They are filled with a dry lubricant, based on graphite and molybdenum disulfide. The dry lubricant can protect the rolling elements and raceways from damage caused by solid contaminants. SKF DryLube bearings provide effective lubri­ cation for high temperature applications, low start-up torque at any temperature and low frictional moment during operation. SKF DryLube bearing Polymer ball bearings Polymer ball bearings are an excellent solution from both a technical and economic perspec­ tive, in applications where resistance to mois­ ture or chemicals is essential. Polymer ball bearings use bearing rings or washers made of various polymer materials and balls made of glass, stainless steel or polymers. They are lightweight, self lubricating, quiet running, and resistant to corrosion, chemicals and wear and fatigue. SKF ConCentra Y-bearings (insert bearings) Polymer ball bearing The SKF ConCentra locking technology pro­ vides a true concentric fit of the bearing on a shaft, to virtually eliminate fretting corrosion. These bearings are as easy to mount as bear­ ings with grub screw locking. SKF ConCentra Y-bearing 10 end ed ner r ca t as • light ring rotati relia bl of which 9 0 L10 , i.e. the pped bear- in on y ti • oper load (P ≤ 0, relu br lu br ic ated. % of the bear me period 05 C) at ic T atin vals, pa ation interv he method ings are still tempe g tempera to al ge ra s es († 2 tu tim 52 and sh re zone ture within († ta ould no ) represen Relubricatio ate th of the bl e 4, pa • st at ts the t be us grea se e green T he gr ge L01 gr n interio ea se lif • low nary machi 305) on the ea se life fo ed. vibr at ne e oper at r capp io factor ed in n g le be tem vels . ar For st Diagr It can be ob perature an ings depend ai tained am 1 is d the sp s grea se nless steel ball be fr be ar ings valid for st an om the diag eed and m , use the sc al ar ings fille (GPF) . is liste T he grea se dard deep rams. ultiply d with e corr groove d in ta gr am Diagr perfor by 0,2 the value ob esponding to V T 378 am bl . tained deep gr 2 is valid e 4 († pagemance factor for from th GPF = 1 oo 3 e diaT he gr ve ball bear SK F Energy 05). Ef ficien follow ea se life fo ings. t ing op er atin r each is va lid g cond itions: under the Text in dex Grease life calculation for capped deep groove ball bearings Capped deep groove ball bearings and Y-bear­ ings (insert bearings) are typically greased for A life. SKF did extensive research to enable a A theoretical approach to estimateanthe grease gular cont nu ts an ac t ball be life depending on bearing speed,mlootckoperating or enco d lock ing dear ings 47 9, 5 0 4 der un tr ac vice A BM A k runner be it s 1 161 s 1 28 0, 1 2 temperature, load and other factors. ar ings 89 st anda Gr ea se wher e life for ca pped P = 0, de ep 05 C gr oo Gr ea se 100 00 life L 0 10 ve ball bear in gs [h] n dm = Diagra 100 00 0 200 00 ca 0 lc ul at n dm = ion 20 00 30m co 0 00 0 pa0re d ex amples 10 00 adju 0 40st in0g be to limit ing sp1 25 0 00 ar ings abut m an ee d 1 rd s 41 1 10 3, gu la en 50 26 1 107, 0 000 r cont abut m t collars fo ac 1 r 1 t in 2 ba ents 206 5 ll bear 600 00tern al cl fo dimen in ea r pr el 0 oad 2 rance 27 gs 49 8 pr tolera sions 2 0 70oc 18 –2 7 0 00 ed A C 5 nces 169,8 –2 0 9 tapere0ur es 2 2 1– 2 0 1 000 0 2 0 0 –2 2 25 d rolle A A C curr 4 FB 02 r bear M A st ent in an gs ag da ricultur pr ot ec rd s 41 8 16 –8 17 and Y- al applic at pr ot tion w it h ions Grease life estimation forbe capped ar ings bearings A C motec tion w it h hy br id bear sp ec A H 45 if ic at ion lif 435, 4 4 6 –4 acce ss or s 1 152 IN S O C O AT ings 1 2 2 0, e be 7 1 or 47 8 2 ar 100 3 2 ings alcoho acet on ie s 1 269 1209 6 ls 1 2 GPF = –1 3 41 1 40al ig nm 51 ac id s e 1 251 GPF = ent ne 45 50 2 55 ca re sist le lle GPF = 55 ed ge s 69 60 ro an 4 70 60 65 r bear 3 65 –6 de 70 re sist ce of poly 9 70 75 in gs 75 si80 gns an 75 580, 714 8 ac ry lo ance of se mer ball be 85 d90 dimen varian 85 90 80 6 85 3, 7 76 –7 al ni tr ile 95 ts 79 100610 -but ad m at er ials ar ings 1 2 fi ts an sion st anda 8 35 95 100 1090 95 10 hy dr 0 105 rd d to 5 110 11 n = ro in A D A ogenat ed ac iene ru bb er 15 6 –157 51 110 11 115 tel rnal lerance cl s 70 3 0 115 120 12 5 8 0, 6 dm = be tationa ry (N sp as lo cl B 5 130 120 125 13 5 ni tr ile ad ap te R se s 7 ar ing 0 lo meas eed [r/meain]rance 0 135 14 -but ad ) 155 for va 16 = 0,5 (d ad r slee ve2 n dia 7 7 1 rious 0 145 m1et er 02 –70 + D) iene ru mis gr ea se Op er at ing te ax ial lo s 1 27 [mm] al 3 ig pe m 3 bb pe rform er (HN 0 6 mount nment 52 ance fa rature [°C bear in ad carr ying 0 –1 274, 1 B R) 1 ] ct or s 2 (GPF ) 56 pr oduc ing 718 , 702 –70 3 co at in g seat tolera capaci ty 8 9 0 –1 3 0 9 94 nces tempe t ta bles 7 de sign gs 1 270 2 0 0 –2 76 01 tolera rature limit –7 79 de sign at ion sy st em alipha nces 702 s 714 dimen s and varian 1 28 8 –1 tic –7 28 sion st ts 1 2 re sist hy dr oc ar bo 0 3 anda 70 –1 9 an Tfodiarsm pC AeouRrntein re sist ce of fluorons g bear rd s 1 274 27 3 d in B gs r al oalllro kalis ance of poly ru bb er 1 28 8 –2 for inch toroid e r m 56 t 8 er ball h sh ller ber u s 9 af ts 1 re sist for met bear in ar in t b an 2 gs 1 2 re sist ce of po for oil ric shaf ts 9 8 –1 3 0 3 gs 9e7a 1) 5,r1in 51 0 0g0s A llen w ance of po ly mer ball be –10 0 3 for se inje ct ion 1 1 2 9 0 –1 2 97 ly re , ar 1 27 3 lf2 ings alumin nc he s † ur et hane for sp aligning ba 70 –1 272 1 251 iu 1 he heri ll in poly m ox ide (A l xagonal ke57 1 27 3 cal roller bebear ings 5 ys 4 6 –5 ar ings on IN mer ball be 2 O3 ) for Y-be 89 8 –8 47, 5 6 4 –5 ambien S O C O AT be ar ings 1 mount ar ings 42 9 9, 94 6 2 0 –945 5, 1 27 3 amines t tempera ar ings (coa 51 , 1 26 0 on a st ing bear ings 2 –42 3, 42 , 95 4 –9 ture ting) 1 7, ep 5 47 24 6 am 2 pe 1206 55, 78 0 –471 0 d shaf mon pr oduc t A MP S ia 152 , 1 sp acer t ta bles 1 2 07, 1 270 5 2 angle up er seal ™ 4 tapers rings 2 07, 9 0 –1 3 0 9 co ri ng nn s 57 1 1 270 ec tors angle thread 1 274 ,6 se angula ries 4 0 0 4 –6 39 1 15 4, 1 155 tolera s 1 274 , r co nces ac adju stcutnttabs w it h 1 274 Printed and navigation1161 bear in ment t ballsimplify ad ap te inch dimen as du gs 47 so ring m rt men 5 –535 ou A DB rs 1 10 8 , 1 sions 1 3 0 4 t ax nt 47 ing ial lo 6, 5 1 10 –1 3 0 9 addi ti 8 0, 6 02 bear in ad carr ying 5 0 0 –5 02 2 2 1– 2 25, 2 ve s 77 cage s g ar rangem capaci ty 47 in gr ea combi 4 8 0 –4 8 1 , ents 16 0 –1 6, 49 8 in oil se 24 4, 24 ne 49 2 63 8 6 d 7 , 25 4 5 –26 6 w it h a adju st cont ac ed ne t ed le rolle adju st bear ing de sign angle 47 sy st ed r 6 de sign pr ov isions , 4 8 6 –4 87, bear ing 6 8 adju st re ference sp ems 16 3 ment de sign at ion sy st em49 8 –49 9 49 8 , 5 0 4 4 –6 85, 78 fact or ee d 1 2 0 0 –78 3 s and s 1 2 1– 5 0 4 –5 di va m ri 1 24 en 05 an Not e: dimen sion st anda ts 28 , 476 Desig rd nation dou bl sional st abili s 4 8 6 –4 –4 8 4 pr ef ix e row 87 ty es and 49 be for un 7 ar in su ff ix iv es ar e four-p er sal m atchgs 478 –47 show n 9, oint co nt ac t ing 47 7, 5 0 52 2 –52 9 in bol d. ball be ar ings 0, 5 0 6 –52 1 4 8 0, 5 3 0 –535 Extended assortment for value-added bearings The assortment of capped bearings, SKF Explorer bearings, electrically insulated bear­ ings and hybrid bearings has been extended. Deep How to use this catalogue ner b e Bear in groov g t y pe e ball an d de bearin This catalogue is divided into two main sec­ signs gs 1 Y -bear tions: a technical section and a product sec­ i n g s (inse tion. The technical section describes in detail r t bea how to select and apply rolling bearings and rings) 2 ngula covers eight main topicssinmarked printed gle dir withA ec tion r A c o with o section is div­ n tabs from A to H. The product t ac t ba r sc rew without (70 ll bear ided into chapters by product dow n Each chapter ) a cov dou ble type. 71 ings b e e r a r in dirabout gs ec tion the bear­ 3 contains specific information (71) Selfalignin ing type and its optional variants and product g ball tables. Each product chapter is clearly marked bearin gs 4 by cut tabs with an easily identifiable icon. Cylind r arin ical ro ller be ar gs Find information quickly r b e ar in h a thic gs († paThe ge 10catalogue is designed so that specific k 9 9) ar unt un walled ouinformation e can be found quickly. At the front t er it Need ack s a s are u sed in r ing. T hese n d c on of the there is the full table of con­ le a ll tcatalogue y pe s o v e y or s y s t em tents. Ats. thef back, there is a product index and a full text index. C am r Taper ed oller s single r dou ble ow (72) row (7 3) 73 s Spher ical r roller roller ings 5 bearin gs 6 bearin gs 7 oller b ear ings 1 343 8 al roll r bear text index helps to locate Ae comprehensive ing quickly. specific information 9 T h r u S uppo s t b r t r oll all bea er s withou rings t f la C rind 10 with o nyglein gr s ical r r with oller t withou out cont a hrust c with a t an inner r in t seals bearin n inne r r ing g gs 11 (7 Needl 4) e rolle r thru s t bea rings S p 12 h erical with f lange r o r bear in ings, b l l e r thrust gs a sed o n ne e d with o bearin le rolle r wit r gs 13 with a hout cont a c t sea c ag e ls g with a r a full co uided roT c mplem ller setk(7runn 5 en t r o er bea ller se ) rin t C ARB toroid Index 11 m1 Foreword Find product details quickly A quick way to access detailed product data is via a product table number. Product table numbers are listed in the table of contents at the front of the catalogue, in the table of con­ tents at the start of each product chapter and in the product index at the back of the catalogue. Identify products Product designations for SKF rolling bearings typically contain information about the bear­ ing and additional features. To specify an SKF bearing or to find more information about it, there are three options: • Product index The product index at the end of the cata­ logue lists series designations, relates them to the bearing type and guides the reader to the relevant product chapter and product table. • Designation charts Product designations in each product chap­ ter are located on the pages preceding the product tables. These charts identify com­ monly used designation prefixes and suffixes. • Text index The text index at the end of the catalogue contains designation suffixes in alphabetical order. They are printed bold for quick browsing. Produ ct inde Tex t in J A bu tm 1, 2 da min . in . 171 171 172 172 174 17 7 18 1 81 82 82 7 16 5 16 2 16 8 16 3 174 171 18 1 17 7 17 3 18 0 176 185 193 18 8 18 4 19 0 185 19 8 19 9 194 2 02 19 8 208 2 15 2 10 220 223 2 27 22 1 2 32 230 d fillet da m ax . mm 161 161 16 2 16 2 16 4 16 4 167 en t an 229 229 25 8 25 8 276 32 3 249 249 26 8 26 8 293 30 6 30 6 32 3 299 3 26 3 26 343 343 2 2 2 ,5 2 ,5 3 2 ,5 2 ,5 3 2 2 ,5 2 ,5 3 3 sions C alcu ra m ax . lation e fact or Y1 2 2 2 2 2 ,5 2 ,5 3 0,2 0,28 0,28 0,37 0,24 0,33 0,33 0,2 0,28 0,28 0,37 0,25 0,33 3,4 2 ,4 2 ,4 1 ,8 2 ,8 2 2 3,4 2 ,4 2 ,4 1 ,8 2 ,7 2 0,2 2 0,3 5 3,6 3,6 2 ,7 4,2 3 3 5 3,6 3,6 2 ,7 4 3 3 s Y2 – 2 2 2 2 2 ,5 3 2 2 2 2 3 x J Da m ax . 2 14 2 14 238 238 256 256 303 269 269 28 6 28 6 303 dimen de x Desig Y0 3,2 2 ,5 2 ,5 1 ,8 2 ,5 2 4,6 2 ,3 0,28 product Numbered tables make it easier to a ­ ccess product data. 2 ,8 3 ,4 2 ,4 1 ,8 2 ,7 0,37 0,25 0,2 2 0,3 1 0,28 0,37 0,24 3,6 2 ,7 4 3 2 ,2 2 ,4 1 ,8 2 ,8 4,6 3,3 3,6 2 ,7 4,2 2 ,2 2 ,5 1 ,8 2 ,5 2 ,8 2 ,2 2 ,5 1 ,8 1 Deep 0,3 groove 2 ball be ,8 2 ,3 0,4 ar ings 3,4 1 ,7 0,24 2 ,2 2 ,5 2 ,8D esign 4,2 ation s21,8,6 0,2 2 ystem 3 0,3 4,6 2 ,3 0,4 2 ,8 1 ,7Prefixes 3,4 0,24 2 ,2 2 ,5 2 ,8E2. 0,35 1 ,6 SK F En 1 ,9D/ICOWS- 4,2 Oil erg Eff seale d2y,8 icient W 2 ,9 Stainl bearing be es ste aring unit Stainl s1 el, inc es s ste,8 h dim Ba sic Lis ted Su ffi xe Gr oup E de sig in dia el, me nation gr am 2 († s 1: Int er nal de sig page L Gr oup en tric dim sions ensions 43) n Reinforc ed ball se t Gr oup 2: Ex ter nal de sign (se N als , sn NR ap rin Snap g gr oo N1 ring gro ve etc Snap .) ov R e in rin One loc g groove the ou ter -R S1 , in ring Flang ating slot (no the ou ter -R S2 , -2RS 1 ed ring, wi Conta ou ter rin tch) in on -R SH -2RS 2 g e ou ter th appropri ct , Conta seal, NBR, ate ring sid -R SL , -2RS H ct seal, on e face snap ring on -2 Conta e or bo FK M, -R Z, -2 RS L ct Lo w-fri seal, NBR, on one or bo th sides -Z , -2 RZ Z Non-conction seal, on one or bo th sides -Z NR Shield tac t seal, NBR, on on th sides e Shield on one or bo NBR, on on or both sid -2 ZNR e es on th or both one sid sides the op sides -2 ZS e, Shield po sit e side snap ring gro X of Shield on both sid the shield ove in the es ou ter Boundaon both sid , snap rin ring, sn g gro es , ry dim ap rin ensionsheld in place ove in the g on Gr oup ou by not in 3: Cage accord a ret ainingter ring, wi de sig th snap ance wi rin n – ring th ISO g dimen M sion ser Stamp ies ed ste Machine el cage MA (S) identi d bra ss ca , ball centre MB (S) fie ge, ba Machine d by a numb ll centred TN 9 d er d; bra fol Machine ss low ing dif fer en TNH t de sig d bra cage, ou the Gla ss ns or ma VG15 fibre rei ss cage, innter ring cen M, e.g . M2 61 ter ial Gla ss grade fibre rei nforce d PA er ring cen tre d. The S s are Gla ss fibre rei nforce d PE 66 cage, ba tre d. The S indicates a ll centre indicates lubric ati EK nforce d PA 46 cage, ball a lubric on groov centre d cage, e in ation d 0 2 8 .. 0 3.. . . . . . . . . . ..... . 0 7. . . . . . . . . . . . Inch . . 0 9. . . . . . . . . . . . . . . . Inch single ro w ..... ..... tape sing . . . .K . . . . . . Inch sing le ro w tape re d roller be . . In 1 0.. ch sing le ro w tape re d roller be ar ings . . . . .. 1 1 .. . . . . . . . . . C A R B to re ar le . ..... roid al row tapere d roller bear ings . . . . . . . . . . . . . . . 1 1 2 .. . . . . . . . . . cy . ... li d ro ... ings el f-alig ro ller b . . . . . n driSca 1 1 5.. . . . . . . . . . cy rollenirng ba earing ller bear ings . . . . . . . . .. . . . . . . . . . .. . . . . . . l. lin. Inchl si . s . b . ll . e . be 9 a ng . 6 ri . 1 2 .. . . . . . . . . . p. .o. . . driSca ar l rollele row ngs in5gs ..... ......... ...... 0 , 978 el f..... . . . . ly . r ta . m . 7 al th . . pe e 3 . ig . . ru st red ro , 6 0.2. . . . . ..... ........ 1 3.. . . . . . sp . Inr ch b all b ening ba ..... . . earinlle . singleari ng ll bebar .... 1 3 0.. . . . . . . . . . . . .h. e. rica ar ings . . . . . . . . . sr be ings g l ro w ta s S ro 1 el 1 . 0 Yll f. w . . 2 e 3 . . . . al it r eari pere6d 0 . 9, 0.4. . . . . ..... .b.e. ari n h 1 4 .. S elg s ignibng .K 2 , 0.4. . . . .. . . . . . . . . . . .. ba n bes 8 roller be an ex te1nd . . . . .v 1 5.. . . . . . . . . . 3. 0. . . . S el f-al4ig5ni7ng ba ll g ar in8gs 7 .... 2 , 9 ar ings . ed in1ne . . . . . . . r ring . . . . . . . . . . .lo.ck . .B In f-aligning ll bear ings . .0. 2 ..... 1 55.. . . . . . . . . . .C.A. R . . ... . . to ba ... chid ... ... ..... ro . ll bear siang 1 6 0.. . . . . . . . . . sp . Inch le ro l ro ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .d.e llewr ta . . . . h. erica l rosing b epe 1 6 0.. . . . . . . . . .ke to rendgro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .de . ari erlebro ..... /H ..... . . n e In5ch sillng ..... s lle9r6be eawrita pe . n . 1 61 .. R . . . . .ke y. .sl. . . s S1in re ar 6 le . 0 . . g , 9in 78gs . . . . . . . . . . . . . . . . . . . . . . . .d.im lle . . . . .o ts gle ro ro w tapesre8d8ro . .. .. , 9r0be . . . . fo 1 6index . P1 2information ..... ..... . . . ke d ro2lle 1 .. /H . makes 2 arainbearing’s 78 , 1w2deep gr based gs . . r. . . .ys The product on . . .finding . . † ol ym er sing 8le 17 26 2 . . . . . . ke 0 –1 2oo ve ball r bear ings . . . . . . . . . . . . . . . . . . . . . . . . . fo . . r. .s . . .y.w. a . hSeinxa g 8 .. . gl . o ro . be . . 1 n e . . . w . , a . ro ..... designation ..... . .ys P1 ..... 17 2easy. keepys deep1gr w lde 289 ar ings . 6 3.. . . . . . . ki . . . .ln 2 ol . . . 7 . ym . in . oo . . 8 . . gr . . . .... st .... s. . . , 1si28 0 ve ba er ... oo ve ... 1 8 6.. ....a le–ro 1w . . . . . . . . . .a.n.d. . Y-bear ings ng 28de1epball bear in ll bear ings . . . . . . . . . . .. . . . . . . . . . . . lo o . 19.. b eaY-be . . . .se ..... .....a ngarsin w it h a st anda gr oove ballgs . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . m . . . . . . . .n.d. .S Inri .. . . . .a.ti n r ewxt ..... bear in it hrea st rd inne ch singfogs .. . . . KF D ki.n. e. m . . . . . . . . . . . . . . pre ry gs m 2 .. . an r le ri e L da ro ng . u In te ci . . .. ch ng b e bwe tape . a . . s mrdp einra netu arinre 2 .. NR . . . . . . . . .ki n em tic repsi r ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pro. . . . lenislehrow ta gsd ro . . .d. u. c . ..... s . 1. 1 ..... 1 1lle9r3bearre . ment/pere . . 2 ..-2 Z . . . . . . . . . . . . .aticS in vi . 7 . . . d sc . . ..... . to st arvroaller be ings . . . 6 . . . . . . . o si ty . . le . . . ra ... . . n. ..... . 2 ..-2 Z . . . . . . . . . . . . . S in gle row de† . . it. h ep vi sc si ty tion ar ..... ......... ...w . 10in0gs . . . . . . a , . . . 2 ..-Z NR . . . . . . . . . . S hi gle row de ep gr ooove . 10 2 . . . . . . .. lo .. .. ba . .h . . . . . . . . . . . . . . .w . .a. . . 2 ..-Z N . . . . . . . . . . . . . . S hi elde d single gr oo ve ba ll bear ings w ..... n . . . it . .h . . . . . .w ..... 2 1 3.. R . . . . . . . . . . . . S hi elde d single ro w de ep grll bear ings w it h filling sl . . . . it ch . . . . in lo ck w .... 2 2 .. . . . . . . . . . . . . . . S hi elde d single ro w de ep gr oo ve ball be it h filling sl ot s . . . . . a sh . ..... . ot el . e . ro r 2 2 ..-2 . . . . .L . . . . Sph de d single w de ep gr oo ve ball be ar ings w it s and a sn . . . . . . . .de sig h filling . . . . .n 1 ..... ap ring ro w oo ve er ic ar in 2 2 2 .. R S 1 . . . . cy .. . slot . .in. st el f-aligal roller bearde ep gr oo ve ball bear in gs w it h filli . . . .li. n driSca . . a. ll. .ati.o. ng sl s . . . . . gs 2 2 2 .. . . . . . . . . . lo . in ba ... . .ro -2 ll nir ng . . . nu S eallero . .d.u. ct ll bear gs . . . . . . ll bear ings w it h filling ot s and a sn. . p baleba 2 2 3.. C S 5 . . . . . ck . . Stsphan d seelfa . ta sl . in . w ri lo .. ot ap .. it ngs gs . . . ck inng .p .m erdic lo ck inigning g cl. ip 2 2 3.. . . . . . . . . . . .o. ly 02 . . . . . .. . . . . . . . . . .h filling slot ss . . . . . . . . . ri . eSrea . .s. . rolle g d ball6be b a al /V . ..... . in ehe ..... 2 2 3.. A 4 0 5 . . .sl. e. e. ve ari grsbeearviincegss .1ar . sSph lelld bsp . . . . . . . . . . . . . . and a snapde.si. g. n 1 2. 28 gs . . . . /V . ri . . er7ic3al, rinca l ro1lle 2r6be 2 2 3.. A 4 0 6 . .L 4.B. . .5. 75Sph1 2 . . . .7 all a. ti 1ro2lle 0 ar in. . . .9. . . . . . .. . . . . . . . . . .. . . . . . . . . . .. . . . . . . .in. .st.ng 8 -2 C S 5 .5.B. . . , r 9 o 6 er be L n . 0 . . . gs ic ar ings ..... ..... . . . . . pro du. . . . . a 3 al rolle 2 3.. .. .... 6. S . . . . . ct ta . . . . . 0 3 pher ic al ro r bear ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lo . . . . . b le 2 3..-2 . . . . . . . . .L 5.D. A . . ck S ea ller ... ... ... . . in . for . . g p te 2 3 0.. R S 1 . . . .L7.B. . . . 1 2S4el2 ,le1d2sp . s herica bear ings fo vibr at or y ap. . . . . . . . . . . . . . . . . . . . . . . . . . . .d.e si.g. . .la Gr . . . . .6 0 3 f-alig4 4 . . . .n. 1. . . ..... ..... , 1 24l 5roller be r vibr ator plic at io 2 3 0.. .4.1. ou. p. 4. . . . L . . .2.78 – . . . . in . ns . . .7.D. .A .1 S eale d ning ba y ar -2 C S 4.2 . . a. ll. a . . 2S4 2 , self-al ll bear ings ings . . . applic at ions . . . . . . . . . . . . . . . . . . st 4.3 2 3 0.. . . ti . . o . . 4.4 la n . . . an . . b. yr pher1ic24 4 igning p. .ro . -2 . . .d.u. ct . 4.5 . in . 4.6 al ro, lle 2 3 1 .. C S 5 . . la ....b 1 2r 45 ball bear. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . lo . . le . . . . e. . thSse eaalelsd 2 . . . . . ta bear in ..... ..... . . . . . .g. a. ri ings .b.e aS sphe 2 3 1 .. . . . . . . . . . rg 28ri, ca .ic. .p. riea 2 3l ro . . . . thm -2 npgle4.6 . 2 ller gs . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . . . . in ro ou sd: Otsp 2he7he 2 32 .. C S 5 . . . .e.ff. e. ct . oSGrph . . . . .cy.li.n. d. ri . . . file bear in ..... ..... ..... ,ria2ca r5 vari .H. . . . n . 8 er l ca . . re L 5 ro nt . . . . gs . ic s . . in . . . lu lle al . . . 2 32 .. . . . . . T 2 3. SGrea ..... ..... . . . . . tap e.re . . l ro l8 briro r bear ..... calle -2 . . . . . . .d. ro tirobe 0ou4ple d: 0 n in arte Lu spbrhe –4.53 2 32 .. C S . . . . .li fe. . . . . 3 ings ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lo . . . . ller8 icatio . . o. se SGJph rica n l -2 . . .fi. ts ..... ..... . . N er ic 5 , 3 2 roller rv al. . 2 . .5. 4. . 4 . . . .1.70 2 3 6.. C S 5 . . . ca . SHTea . . . . . . . . . . . . . . . . . . . lo r al ro ller1 . .w be . -f . . . lc ar . ri . . . . . . . u . ct le in LH be . . . . . . . la oT2n3 ds sphe .. .. . . . .io gs . . ..... 2 3 8 .. . .n. b. e ari 4. . .w LTea e xa . . . .d.e fi.n. Sti ri l roar ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lo . .-f. ri .. le ds spmin ng . .ct . . . it ioLTn .. .. p ca .. . 8 . .io. suffixes the lle text index 10listed 2 3Designation 9. . . . . . . . . . . . .e In f Greaherile MTch . als .1 6ng cas 9 0 –r9bear ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L. .S. . 6 33 si 3 . .0.2. . .n. se q . a. tioMT su ffi xe l ro lle 8 .2 3 2 . . . 2 3reduce s lesero . . . . . . . . . . .u r s 47 . . . . . († 9. .-2 C . . .search be n . . . . S . . L . . s . time. . ph ..... ..... T . .... ..... ble 4, ar in gs .te. . . VT 378er6ic S ... s4 – ro3 w tapetare page 8 .2 . . . . . 3. 0 24 0.. 4 – 3. .0.5. d ro gSWTph . . . . . st. in ller be 95er icc alal 8 . lle30r5)be . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L. T , 32 8.1 ar in n. . .conS ea . . . . .1 0. . .3.0. 4 24 0.. . . . . . . . . . u ar . . ro -2 C S 2 . . . . . . .–.3. 0 1 . . . it le sp ller bear in gs . . . . . . ings . . . . . . . . . . . . . . . . . . . . . . . . . lu . . SGrve ouprsdio he ..... ..... ..... . . b. ri gs . . . . . . .w it. h . . 5, 382.21 nt. fi. .lm taribca : Stn . .ca abiliz riph l . . le . . ro . . . . a ber4.4 . ic . li fe .a.d. . vaSS0 . . . 8 . ati lle . al . s . 7 . . .1 e 1) .... oprora lleonr be 0 r bear ings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ff. e. ct ju stS1mealele Start in Bearie . . .o.f.inle ... .. .. sp ng rin ti n gar in gs e d Be he g page li fe m o gs heat co n . t 8 .2 ri ari . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e.ff. e. ct ngo ct dd it io sta dif ic atint fa rin . . .o.f.ki n. sh8e.2ari n gs he rca 6l ro at liofftth for op n s . .8. . . 5stallebilbilrizeizebe . e . .ff. e. ct inegpr oduc Gr oup o n fa eratin ..... ......... ......... ...e d forar g tem1 4.3: Be . . .o.n. fr. m a7.ti2c st a ct opin ..... ..... . . . . fo erags . pe ar ing o r 6 bl let ta ting tem .pe.rat. ur. es limit in tack . 1 36 4 e. . se ts, . . 4 2 . ≤ . . . DB 7 –7 15 rm . .≤ . .0.°C (30 ..... ..... . . . . ic tion rat ur es 8 .1 g spDFe e Tw4o ,be9 0 3 matched bear0, 7 3 al mo ... o. . . . . . . a. ti 20 0 °C. . .0.°F ) lu ings d 1Tw2o be6 arings match (39 0 °F. . . com DT . . . . . n. . 241 8 ca . . . . . . . . . . . . . . bri ) , 2.165 ... Tw o be arings match ed for mo ..... . . . . . n ts linear p are d to re un arings . . . . . dry 8 .2 . .. match ed for moun ting back-tolu fe b e re ed for . . . . . b.ri. ca tin .n nce sp moun g face-to- back lo ad ra aGrriounpg4.2s: Ac4cu e 8 . ts tin ff . .1 fac . g e e e . in 1 ct .. 1 gs 6 3 5racy, clearance, e d 1 18tandem lo ad ra tinP6P5 funct on p oly am8.292 , 1 quiet –6 Dim K 8.2 3,2 2 ,5 2 ,5 1 ,8 2 ,8 2 2 nat ion angula cy lind r contact b a ri spheri cal roller b ll bearings tap ere cal roller b e earings 5 8 4 8 0, 5 0 4 a 2 d rolle JA r b eari rings 9 02 , 6 02 ngs 8 cy lind 22 ri spheri cal roller b JB 5 8 cal roller earings 60 2 , 6P0 ro2duct b e ari ng s 9 02 2 933 Designation chart to decode designation suffixes 12 t 1 Gr oup 2 Gr oup 3 / en4 tio running Dimen sional and ru for an P6P522 P5 + C2sional and ru nning acc ur guP6la ac nning acc ur y to P5 tol 3 r coP6 + C2 for f CN ac y to eran Pn ide 6 6 io c grea se n 24 0 s 24 4 oil s –2 Units of measurement This catalogue is for global use. Therefore, the predominant units of measurement are in accordance with ISO 80000-1. Exceptionally, imperial units are used when it is required by the product. Unit conversions can be made using the conversion table († page 8). For easier use, temperature values are pro­ vided in both, °C and °F. Temperature values are typically rounded. Therefore, the two ­values do not always exactly match when ­u sing the conversion formula. More SKF rolling bearings Other rolling bearings, not presented in this catalogue, include: • super-precision bearings • ball and roller bearing units • fixed section ball bearings • large deep groove ball bearings with filling slots • large angular contact thrust ball bearings • tapered roller thrust bearings • multi-row ball or roller bearings • split roller bearings • crossed tapered roller bearings • slewing bearings • linear ball bearings • bearings for inline skates and skateboards • backing bearings for cluster mills • indexing roller units for continuous furnaces of sintering plants • application specific bearings for railway rolling stock • application specific bearings for cars and trucks • triple ring bearings for the pulp and paper industry • bearings for printing press rollers • bearings for critical aerospace applications For information about these products, contact SKF or visit skf.com. 13 This is SKF From one simple but inspired solution to a misalignment problem in a textile mill in Sweden, and fifteen employees in 1907, SKF has grown to become a global industrial knowledge leader. Over the years we have built on our expertise in bearings, extending it to seals, mechatronics, services and lubrication systems. Our knowledge network includes 46 000 employees, 15 000 distributor partners, offices in more than 130 countries, and a growing number of SKF Solution Factory sites around the world. Research and development We have hands-on experience in over forty industries, based on our employees’ knowledge of real life conditions. In addition our worldleading experts and university partners who pioneer advanced theoretical research and development in areas including tribology, condition monitoring, asset management and bearing life theory. Our ongoing commitment to research and development helps us keep our customers at the forefront of their industries. SKF Solution Factory makes SKF knowledge and manufacturing expertise available locally, to provide unique solutions and services to our customers. 14 Meeting the toughest challenges Our network of knowledge and experience along with our understanding of how our core technologies can be combined helps us create innovative solutions that meet the toughest of challenges. We work closely with our customers throughout the asset life cycle, helping them to profitably and responsibly grow their businesses. Working for a sustainable future Since 2005, SKF has worked to reduce the negative environmental impact from our own operations and those of our suppliers. Our continuing technology development introduced the SKF BeyondZero portfolio of products and services which improve efficiency and reduce energy losses, as well as enable new technologies harnessing wind, solar and ocean power. This combined approach helps reduce the environmental impact both in our own operations and in our customers’. Working with SKF IT and logistics systems and application experts, SKF Authorized Distributors deliver a valuable mix of product and application knowledge to customers worldwide. 15 SKF – the knowledge engineering company Man ufa ctu re an d co mm an dr ep air Opera te and monitor Working closely with you Our objective is to help our customers improve productivity, minimize maintenance, achieve higher energy and resource efficiency, and optimize designs for long service life and reliability. Innovative solutions Whether the application is linear or rotary or a combination of the two, SKF engineers can work with you at each stage of the asset life cycle to improve machine performance by looking at the 16 an all Inst d ain st te SKF Life Cycle Management ission Design and develop ion at t in Ma SKF Life Cycle Management is how we combine our technology platforms and advanced services, and apply them at each stage of the asset life cycle, to help our customers to be more successful, sustainable and profitable. Spe cif ic Our knowledge – your success entire application. This approach doesn’t just focus on individual components like bearings or seals. It looks at the whole application to see how each component interacts with the next. Design optimization and verification SKF can work with you to optimize current or new designs with proprietary 3-D modeling software that can also be used as a virtual test rig to confirm the integrity of the design. Bearings SKF is the world leader in the design, development and manufacture of high performance rolling bearings, plain bearings, bearing units and housings. Machinery maintenance Condition monitoring technologies and maintenance services from SKF can help minimize unplanned downtime, improve operational efficiency and reduce maintenance costs. Sealing solutions SKF offers standard seals and custom engineered sealing solutions to increase uptime, improve machine reliability, reduce friction and power losses, and extend lubricant life. Mechatronics SKF fly-by-wire systems for aircraft and drive-by-wire systems for off-road, agricultural and forklift applications replace heavy, grease or oil consuming mechanical and hydraulic systems. Lubrication solutions From specialized lubricants to state-of-the-art lubrication systems and lubrication management services, lubrication solutions from SKF can help to reduce lubrication related downtime and lubricant consumption. Actuation and motion control With a wide assortment of products – from actuators and ball screws to profile rail guides – SKF can work with you to solve your most pressing linear system challenges. 17 Principles of bearing selection and application
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