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
710 mm x 950 mm x 106 mm ISO 619/710 ISO Bearing 28000 28150 28300 Imperial
170 mm x 260 mm x 160 mm ISO NNU6034 V ISO Bearing 13600 13686 13621A Imperial
361,95 mm x 406,4 mm x 23,812 mm ISO LL562749/10 ISO Bearing 28000 28138 28317 Imperial
ISO QJ303 ISO Bearing 155 mm Aluminium Triple Labyrinth Split Cylindrical Retained Type Four-Bolt Plummer Block
130 mm x 200 mm x 69 mm ISO 24026W33 ISO Bearing 28000 28151 28300X Imperial
ISO 234421 ISO Bearing 13600 13682 13623X Imperial
710 mm x 870 mm x 74 mm ISO NJ18/710 ISO Bearing HH437500 HH437549XX HH437510XX Imperial
150 mm x 225 mm x 56 mm ISO NN3030 ISO Bearing LM236749 Imperial Stamped Steel 111000 lbf
ISO 7413 BDT ISO Bearing 18700 18780 18720 Imperial
ISO UCTX13 ISO Bearing 275000 EE275109D Imperial Stamped Steel
ISO Q1040 ISO Bearing 33000 33287 Imperial Stamped Steel
ISO UCF310 ISO Bearing 82600 82680X Imperial Stamped Steel
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