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
ISO NX 15 Z ISO Bearing 28000 28156 28300X Imperial
220 mm x 340 mm x 90 mm ISO 23044 KCW33+H3044 ISO Bearing 28000 28151 28317 Imperial
ISO BK2218 ISO Bearing L860000 L860049A Imperial Stamped Steel
70 mm x 160 mm x 74,6 mm ISO UCFL214 ISO Bearing 5500 5584V Imperial Stamped Steel
ISO 811/530 ISO Bearing 28000 28158 28315A Imperial
ISO HK4016 ISO Bearing 153000 EE153049 153101 Imperial
90 mm x 160 mm x 40 mm ISO 22218W33 ISO Bearing H715300 H715344 Imperial Stamped Steel
120 mm x 165 mm x 45 mm ISO NN4924 K ISO Bearing 22000 22168 22325 Imperial
ISO BK425214 ISO Bearing 13600 13687 13623X Imperial
440 mm x 600 mm x 160 mm ISO NNU4988 ISO Bearing Double Shield Double Row Cylindrical Bore 0.060 kg
ISO 7408 BDF ISO Bearing HM926700 HM926747 Imperial Stamped Steel
360 mm x 540 mm x 134 mm ISO N3072 ISO Bearing 28000 28137 28300 Imperial
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