
Koyo 6234 deep groove ball bearing
Koyo 6234 deep groove ball bearing: bore d 170 mm, outside diameter D 310 mm, width 52 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 | 170 mm |
|---|---|
| Outside diameter D | 310 mm |
| Width | 52 mm |
| Basic dynamic load rating Cr | 265 kN |
| Basic static load rating C0r | 223 kN |
| Limiting speed, grease lubrication | 1900 min-1 |
| Limiting speed, oil lubrication | 2300 min-1 |
| Mass | 17.5 kg |
All specifications: Verifiedprinted in Koyo’s own catalogue
Same size, other makers and types (170 × 310 × 52 mm)
| Part | Manufacturer | Type |
|---|---|---|
| 7234 | Koyo | angular contact ball bearing |
| 7234B | Koyo | angular contact ball bearing |
| 7234C | Koyo | angular contact ball bearing |
| N234 | Koyo | cylindrical roller bearing |
| NF234 | Koyo | cylindrical roller bearing |
| NJ234R | Koyo | cylindrical roller bearing |
| NU234R | Koyo | cylindrical roller bearing |
| NUP234R | 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.
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