Bearing NU256 KOYO NU256 KOYO bearing Size Chart (mm/inches) |
|---|
| Series | 13600 |
| Cone Part Number | 13687 |
| Cup Part Number | 13621A |
| Design Units | Imperial |
| Bearing Weight | 0.30 Kg |
| Cage Type | Stamped Steel |
| d | 38.1 mm |
| D | 69.012 mm |
| B - Cone Width | 19.050 mm |
| C - Cup Width | 14.321 mm |
| B | 18.288 mm |
| R - Cone Backface To Clear Radius1 | 2.030 mm |
| r - Cup Backface To Clear Radius2 | 2.29 mm |
| da - Cone Frontface Backing Diameter | 42.93 mm |
| db - Cone Backface Backing Diameter | 46.48 mm |
| Da - Cup Frontface Backing Diameter | 66.00 mm |
| Db - Cup Backface Backing Diameter | 60.96 mm |
| Ab - Cage-Cone Frontface Clearance | 1.3 mm |
| Aa - Cage-Cone Backface Clearance | 0.5 mm |
| a - Effective Center Location3 | -3 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 3920 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 15100 lbf |
| C0 - Static Radial Rating | 15300 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2700 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) | 12.2 |
| Cg - Geometry Factor | 0.0713 |