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The objective of this document is to restrict the number of radial bearing sizes just enough to ensure economic production, yet provide a sufficient number of sizes to satisfy present and future needs of bearing users.
These needs are comprehensive and varying. Therefore, this document needs to embrace a wide range of numerically determined sizes and proportions and can even be extended according to the guidelines given in Annex 
Tapered roller bearings, insert bearings and some types of needle roller bearings and instrument precision bearings standardized by ISO do not conform to this document because the dimensions given are not found to be optimal for the bearings in question.

The objective of this document is to restrict the number of radial bearing sizes just enough to ensure economic production, yet provide a sufficient number of sizes to satisfy present and future needs of bearing users.
These needs are comprehensive and varying. Therefore, this document needs to embrace a wide range of numerically determined sizes and proportions and can even be extended according to the guidelines given in Annex 
Tapered roller bearings, insert bearings and some types of needle roller bearings and instrument precision bearings standardized by ISO do not conform to this document because the dimensions given are not found to be optimal for the bearings in question.

Bearing Number Bore Dia Outer DIa Width Size
3,175 mm x 6,35 mm x 2,779 mm ISO R144-2RS deep groove ball bearings 42600 42687A Imperial Stamped Steel
47,625 mm x 112,712 mm x 26,909 mm ISO 55187C/55443 tapered roller bearings 100 mm Viton Single Lip Split Cylindrical Expansion Type Two-Bolt Plummer Block
44,45 mm x 87,312 mm x 30,886 mm ISO 3578/3526 tapered roller bearings LM501300 LM501349 LM501314 Imperial
220 mm x 300 mm x 60 mm ISO 23944 KCW33+AH3944 spherical roller bearings 29600 29681 Imperial Stamped Steel
ISO BK152012 cylindrical roller bearings 56000 Imperial 1.21 6.4951 in
90 mm x 155 mm x 46 mm ISO T2ED090 tapered roller bearings 90 mm High Temperature Packing Split Cylindrical Expansion Type Two-Bolt Plummer Block
40 mm x 65 mm x 32 mm ISO GE40/65XDO plain bearings HM133400 HM133436 HM133416 Imperial
ISO Q1009 angular contact ball bearings 1 5/16 in Ball Bearing G1105KRRB 0.673 in
ISO 7016 BDB angular contact ball bearings LM501300 LM501349 LM501310P Imperial
1120 mm x 1460 mm x 250 mm ISO 239/1120 KCW33+H39/1120 spherical roller bearings LM48500 LM48548C LM48511A Imperial
70 mm x 125 mm x 39,69 mm ISO NUP5214 cylindrical roller bearings Mounted Bearing 22217 2-11/16 in Imperial
ISO 81222 thrust roller bearings 28000 28158 28315A Imperial
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