ISO Bearing

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Most rolling bearings follow ISO standard dimensions, which is a prerequisite to enable interchangeability. The ISO general plan for radial bearings provides several series of standardized outside diameters for every standard bore diameter. They are called diameter series and are numbered 7, 8, 9, 0, 1, 2, 3 and 4 (in order of increasing outside diameter). Within each diameter series, different width series exist (width series 8, 0, 1, 2, 3, 4, 5 and 6 in order of increasing width).shows diameter series 0, 2 and 3 combined with width series 0, 1, 2 and 3. For thrust bearings, height series are used instead of width series. Height series are numbered 7, 9, 1 and 2. Bearings to ISO general plans have the same boundary dimensions when they share the same bore diameter and dimension series. If not, they have different boundary dimensions.

The boundary dimensions for metric bearings are standardized in the ISO2) general plans:ISO 15 for radial rolling bearings, except insert bearings, some types of needle roller bearings and tapered roller bearings,ISO 104 for thrust bearings,ISO 355 for tapered roller bearings.

Bearing Number Bore Dia Outer DIa Width Size
3,175 mm x 6,35 mm x 2,779 mm ISO R144-2RS ISO Bearing LM501300 LM501349A LM501310 Imperial
47,625 mm x 112,712 mm x 26,909 mm ISO 55187C/55443 ISO Bearing LL510700 LL510749 LL510710 Imperial
44,45 mm x 87,312 mm x 30,886 mm ISO 3578/3526 ISO Bearing LM501300 LM501349HP LM501310P Imperial
220 mm x 300 mm x 60 mm ISO 23944 KCW33+AH3944 ISO Bearing LM501300 LM501349 LM501314 Imperial
ISO BK152012 ISO Bearing 1.75 in Kevlar Packing Seal Split Cylindrical Expansion Type Round Flange
90 mm x 155 mm x 46 mm ISO T2ED090 ISO Bearing 13600 13685 13623X Imperial
40 mm x 65 mm x 32 mm ISO GE40/65XDO ISO Bearing LM501300 LM501349HP LM501314 Imperial
ISO Q1009 ISO Bearing 9300 9380 9320D Imperial
ISO 7016 BDB ISO Bearing LM501300 LM501349HP LM501311 Imperial
1120 mm x 1460 mm x 250 mm ISO 239/1120 KCW33+H39/1120 ISO Bearing L44600 KL44643 KL44610 Imperial
70 mm x 125 mm x 39,69 mm ISO NUP5214 ISO Bearing 93000 93750 93126 Imperial
ISO 81222 ISO Bearing Mounted Bearing 22222 3-3/4 in Imperial