Koyo 4304 deep groove ball bearing
Koyo 4304 deep groove ball bearing: bore d 20 mm, outside diameter D 52 mm, width 21 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 | 20 mm |
|---|---|
| Outside diameter D | 52 mm |
| Width | 21 mm |
| Basic dynamic load rating Cr | 24.3 kN |
| Basic static load rating C0r | 17.0 kN |
| Limiting speed, grease lubrication | 8300 min-1 |
| Limiting speed, oil lubrication | 11000 min-1 |
| Mass | 0.227 kg |
All specifications: Verifiedprinted in Koyo’s own catalogue
Same size, other makers and types (20 × 52 × 21 mm)
| Part | Manufacturer | Type |
|---|---|---|
| NJ2304 | Koyo | cylindrical roller bearing |
| NJ2304R | Koyo | cylindrical roller bearing |
| NU2304 | Koyo | cylindrical roller bearing |
| NU2304R | Koyo | cylindrical roller bearing |
| NUP2304 | Koyo | cylindrical roller bearing |
| NUP2304R | Koyo | cylindrical roller bearing |
| 2304 2RS | Koyo | self-aligning ball bearing |
| 2304 | Koyo | self-aligning ball bearing |
| 2304K | Koyo | self-aligning ball 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
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