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 51228 ISO Bearing 755 766 Imperial Stamped Steel
ISO 7017 BDT ISO Bearing 99000 99550 99098X Imperial
80 mm x 125 mm x 22 mm ISO NUP1016 ISO Bearing 107000 EE107057 107105V Imperial
170 mm x 260 mm x 67 mm ISO 23034 KW33 ISO Bearing Cylindrical Bore Open Single Row 130 mm
69,952 mm x 121,442 mm x 23,012 mm ISO 34274/34478 ISO Bearing 11 in High Temperature Packing Split Cylindrical Expansion Type Round Flange
200 mm x 290 mm x 130 mm ISO GE 200 ES-2RS ISO Bearing 28000 28158 28315 Imperial
35 mm x 55 mm x 10 mm ISO 61907-2RS ISO Bearing 153000 EE153044 153102 Imperial
ISO 51424 ISO Bearing 16900 16986 16929 Imperial
670 mm x 980 mm x 230 mm ISO NJ30/670 ISO Bearing 217000 EE217060H 217112W Imperial
ISO K35x42x20 ISO Bearing 13600 13686 13623X Imperial
ISO HK0808 ISO Bearing M38500 M38549 M38514 Imperial
ISO KZK22X29X16 ISO Bearing HM624700 HM624749 Imperial Stamped Steel
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