KOYO 7221CPA angular contact ball bearings
KOYO 7221CPA angular contact ball bearings Needs Analysis , 20 Bore Diameter (mm) Manufacturing Service . Get Your 20x52x21 Size (mm) Free.
| Size (mm) | 20x52x21 |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| d | 20 mm |
| Fw | 28.5 mm |
| D | 52 mm |
| B | 21 mm |
| C | 21 mm |
| r min. | 1.1 mm |
| r1 min. | 0.6 mm |
| Weight | 0.212 Kg |
| Basic dynamic load rating (C) | 32.9 kN |
| Basic static load rating (C0) | 30.2 kN |
| (Grease) Lubrication Speed | 11000 r/min |
| Bearing No. | NU2304 |
| r(min) | 1.1 |
| r1(min) | 0.6 |
| Cr | 38.0 |
| C0r | 30.2 |
| Cu | 3.60 |
| Grease lub. | 11000 |
| Oil lub. | 16000 |
| Ew | – |
| d1 | – |
| B1 | – |
| B2 | – |
| da(min) | – |
| db(min) | 24 |
| db(max) | 27 |
| dc(min) | – |
| dd(min) | – |
| Da(max) | 45.5 |
| Db(max) | – |
| Db(min) | – |
| ra(max) | 1 |
| rb(max) | 0.6 |
| (Refer.)Mass(kg) | 0.212 |
Detailed Parameters
parameter：
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