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 480 mm x 80 mm ISO N252 ISO Bearing 16000 16150 16284 Imperial
35 mm x 62 mm x 27 mm ISO NA4007 V ISO Bearing 13600 13685A 13620 Imperial
20 mm x 47 mm x 20,6 mm ISO 63204 ZZ ISO Bearing 81000 81593 Imperial Stamped Steel
55 mm x 120 mm x 29 mm ISO NJ311 ISO Bearing 495 495AS Imperial Stamped Steel
340 mm x 460 mm x 118 mm ISO NNU4968K V ISO Bearing 16000 16143 16284 Imperial
36,487 mm x 76,2 mm x 25,654 mm ISO 2794/2720 ISO Bearing 18700 18790 18721 Imperial
420 mm x 520 mm x 46 mm ISO NJ1884 ISO Bearing 18000 18200 18335X Imperial
25 mm x 52 mm x 15 mm ISO NH205 ISO Bearing LM48500 LM48549X LM48510 Imperial
ISO 7013 CDB ISO Bearing 5-7/16 in Aluminium Triple Labyrinth Split Cylindrical Retained Type Four-Bolt Plummer Block
ISO UKF217 ISO Bearing Open Cylindrical Bore Single Row 1.900 kg
98,425 mm x 190,5 mm x 57,531 mm ISO HH221442/10 ISO Bearing METRIC 1/30 118 Kg EJ
80 mm x 170 mm x 39 mm ISO 30316 ISO Bearing LM29700C KLM29749C KLM29710C Imperial
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