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
45 mm x 100 mm x 36 mm ISO 4309 ISO Bearing 28000 28137 28317 Imperial
ISO 7013 CDT ISO Bearing Mounted Bearing 22222 100 mm Metric
50 mm x 90 mm x 23 mm ISO 62210-2RS ISO Bearing 07000 07087 07210X Imperial
ISO 7415 BDT ISO Bearing 29600 29680 Imperial Stamped Steel
460 mm x 620 mm x 95 mm ISO NJ2992 ISO Bearing 31312M Y31312M METRIC 130.000 mm
ISO Q317 ISO Bearing 95000 95475 Imperial Stamped Steel
7 mm x 17 mm x 5 mm ISO FL619/7 ZZ ISO Bearing 28000 28159 28315 Imperial
340 mm x 520 mm x 133 mm ISO SL183068 ISO Bearing 13600 13685 13621A Imperial
95 mm x 160 mm x 46 mm ISO JF9549/10 ISO Bearing LM48500 LM48548P LM48510P Imperial
5 mm x 19 mm x 6 mm ISO F635-2RS ISO Bearing 28000 28137 28315 Imperial
65 mm x 140 mm x 48 mm ISO 4313 ISO Bearing LM716449 Imperial Stamped Steel 53000 lbf
ISO Q220 ISO Bearing 153000 EE153050 153100 Imperial
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