
Koyo 6228 deep groove ball bearing
Koyo 6228 deep groove ball bearing: bore d 140 mm, outside diameter D 250 mm, width 42 mm.
Figure © Koyo, clipped unaltered from Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b). It illustrates the product family printed there, which may include other sizes. Removed on request.


Specifications
| Bore d | 140 mm |
|---|---|
| Outside diameter D | 250 mm |
| Width | 42 mm |
| Basic dynamic load rating Cr | 208 kN |
| Basic static load rating C0r | 150 kN |
| Limiting speed, grease lubrication | 2400 min-1 |
| Limiting speed, oil lubrication | 2900 min-1 |
| Mass | 7.45 kg |
All specifications: Verifiedprinted in Koyo’s own catalogue
Same size, other makers and types (140 × 250 × 42 mm)
| Part | Manufacturer | Type |
|---|---|---|
| 7228 | Koyo | angular contact ball bearing |
| 7228B | Koyo | angular contact ball bearing |
| 7228C | Koyo | angular contact ball bearing |
| N228 | Koyo | cylindrical roller bearing |
| NF228 | Koyo | cylindrical roller bearing |
| NJ228R | Koyo | cylindrical roller bearing |
| NU228R | Koyo | cylindrical roller bearing |
| NUP228R | Koyo | cylindrical roller bearing |
These match this part on the dimensions each maker prints. A size match is not a stated interchange: check the other specifications before substituting.
Documents
Documents open on the publisher's own site; we link them and never host a copy.