NU222R KOYO Single-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | NU222R |
| Series: | 28000 |
| Cone Part Number: | 28156 |
| Cup Part Number: | 28315 |
| Design Units: | Imperial |
| Bearing Weight: | 0.4 Kg |
| Cage Type: | Stamped Steel |
| d: | 39.980 mm |
| D: | 80 mm |
| PDF |
NU222R |
Product Details
| Series | 28000 |
| Cone Part Number | 28156 |
| Cup Part Number | 28315 |
| Design Units | Imperial |
| Bearing Weight | 0.4 Kg |
| Cage Type | Stamped Steel |
| d | 39.980 mm |
| D | 80 mm |
| B - Cone Width | 19.649 mm |
| C - Cup Width | 15.875 mm |
| B | 19.713 mm |
| R - Cone Backface To Clear Radius1 | 2.290 mm |
| r - Cup Backface To Clear Radius2 | 1.52 mm |
| da - Cone Frontface Backing Diameter | 44.96 mm |
| db - Cone Backface Backing Diameter | 49.02 mm |
| Da - Cup Frontface Backing Diameter | 73.90 mm |
| Db - Cup Backface Backing Diameter | 69.09 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.3 mm |
| a - Effective Center Location3 | -3.6 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 4390 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 16900 lbf |
| C0 - Static Radial Rating | 15500 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 3020 lbf |
| K - Factor7 | 1.45 |
| e - ISO Factor8 | 0.4 |
| Y - ISO Factor9 | 1.49 |
| G1 - Heat Generation Factor (Roller-Raceway) | 20.7 |
| G2 - Heat Generation Factor (Rib-Roller End) | 12.5 |
| Cg - Geometry Factor | 0.0709 |
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