ISO bearings
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.
- ISO 26886/26822 tapered roller bearings
- 678A
- 8x12x2.5
- ISO HM89446/10 tapered roller bearings
- 676A
- 6x10x2.5
- ISO UCF217 bearing units
- 6819ZZ
- 95x120x13
- ISO 32217 tapered roller bearings
- 6800ZZ
- 10x19x5
- ISO 81220 thrust roller bearings
- 83462A
- 25x95.5x23.5
- ISO HM905843/10 tapered roller bearings
- 677ZZ
- 7x11x3
- ISO 23324W33 spherical roller bearings
- 675
- 5x8x2
- ISO NH412 cylindrical roller bearings
- 672H
- 2x4x1.2
- ISO LL103049/10 tapered roller bearings
- 6321
- 105x225x49
- ISO NJ338 cylindrical roller bearings
- 677
- 7x11x2.5
- ISO 53330 thrust ball bearings
- 6802-2RU
- 15x24x5
- ISO HK0710 cylindrical roller bearings
- 6702ZZ
- 15x21x4