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
70 mm x 150 mm x 35 mm ISO 21314 KW33 ISO Bearing 2.75 in Kevlar Packing Seal Split Cylindrical Expansion Type Two-Bolt Plummer Block
190 mm x 260 mm x 80 mm ISO NNF5038 XV ISO Bearing M38500 M38547 M38510 Imperial
320 mm x 580 mm x 150 mm ISO 22264 KCW33+H3164 ISO Bearing 13600 13682 13620 Imperial
95 mm x 125 mm x 26 mm ISO NKI95/26 ISO Bearing METRIC 1/12 64 Kg EMB
114,3 mm x 228,6 mm x 49,428 mm ISO HM926740/10 ISO Bearing LM501300 LM501349 LM501311 Imperial
110 mm x 200 mm x 53 mm ISO NU2222 ISO Bearing 28000 28159 28317 Imperial
7 mm x 11 mm x 2,5 mm ISO 617/7-2RS ISO Bearing LM814800 LM814845 Imperial Stamped Steel
630 mm x 920 mm x 212 mm ISO NJ30/630 ISO Bearing 95000 95512X 95929 Imperial
100 mm x 180 mm x 46 mm ISO 2220 ISO Bearing 14000 14120A 14274 Imperial
ISO RNA4907-2RS ISO Bearing 13600 13685 13620 Imperial
ISO HK1410 ISO Bearing LM501300 LM501349HP LM501310 Imperial
80 mm x 110 mm x 20 mm ISO 32916 ISO Bearing M38500 M38549 M38511 Imperial
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