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
260 mm x 360 mm x 100 mm ISO NN4952 ISO Bearing 18000 18204X 18335X Imperial
85 mm x 180 mm x 60 mm ISO 22317 KW33 ISO Bearing 07000 07097 07196DC Imperial
630 mm x 850 mm x 300 mm ISO GE630DO ISO Bearing Mounted Bearing 22218 80 mm Metric
7 mm x 19 mm x 6 mm ISO 607 ISO Bearing 34000 34307 Imperial Stamped Steel
200,025 mm x 292,1 mm x 57,945 mm ISO M241543/10 ISO Bearing LM48500 LM48548A LM48511 Imperial
190 mm x 260 mm x 33 mm ISO NUP1938 ISO Bearing 14000 14138A 14273 Imperial
ISO 7315 BDF ISO Bearing METRIC 51 Kg EMB Brass
45 mm x 100 mm x 57 mm ISO UC309 ISO Bearing M236800 M236810 Imperial 10.2500 in
95 mm x 200 mm x 45 mm ISO 21319W33 ISO Bearing LM48500 LM48549X LM48511A Imperial
60 mm x 130 mm x 31 mm ISO 30312 ISO Bearing LL327049 Imperial Stamped Steel 37700 lbf
ISO K22X28X20 ISO Bearing LM48500 LM48548P LM48511A Imperial
600 mm x 870 mm x 118 mm ISO 60/600 ISO Bearing 15 mm 42 mm 13 mm 15 º
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