N321 KOYO Single-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | N321 |
| Series: | 335 |
| Cone Part Number: | 346 |
| Cup Part Number: | 332A |
| Design Units: | Imperial |
| Bearing Weight: | 0.6 Kg |
| Cage Type: | Stamped Steel |
| d: | 31.750 mm |
| D: | 80 mm |
| PDF |
N321 |
Product Details
| Series | 335 |
| Cone Part Number | 346 |
| Cup Part Number | 332A |
| Design Units | Imperial |
| Bearing Weight | 0.6 Kg |
| Cage Type | Stamped Steel |
| d | 31.750 mm |
| D | 80 mm |
| B - Cone Width | 22.403 mm |
| C - Cup Width | 21.001 mm |
| B | 24.176 mm |
| R - Cone Backface To Clear Radius1 | 0.760 mm |
| r - Cup Backface To Clear Radius2 | 2.29 mm |
| da - Cone Frontface Backing Diameter | 39.62 mm |
| db - Cone Backface Backing Diameter | 39.88 mm |
| Da - Cup Frontface Backing Diameter | 75.90 mm |
| Db - Cup Backface Backing Diameter | 71.12 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0 mm |
| a - Effective Center Location3 | -6.4 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 5490 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 21200 lbf |
| C0 - Static Radial Rating | 18700 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2570 lbf |
| K - Factor7 | 2.14 |
| e - ISO Factor8 | 0.27 |
| Y - ISO Factor9 | 2.2 |
| G1 - Heat Generation Factor (Roller-Raceway) | 26.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 13 |
| Cg - Geometry Factor | 0.0676 |
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