Komatsu Size Chart (mm/inches) |
|---|
| Series | 74000 |
| Cone Part Number | 74525 |
| Cup Part Number | 74850-B |
| Design Units | Imperial |
| Bearing Weight | 14.6 lb |
| Cage Type | Stamped Steel |
| d | 5.2500 in |
| D | 8.5000 in |
| D1 - Flange Outer Diameter | 8.8084 in |
| B - Cone Width | 1.875 in |
| C - Cup Width | 1.3750 in |
| C1 - Cup Flange Width | 0.3125 in |
| T1 - Bearing Width | 1.8750 in |
| T - Bearing Width to Flange | 0.8125 in |
| R - Cone Backface To Clear Radius1 | 0.14 in |
| r - Cup Backface To Clear Radius2 | 0.130 in |
| da - Cone Frontface Backing Diameter | 5.75 in |
| db - Cone Backface Backing Diameter | 5.98 in |
| Da - Cup Frontface Backing Diameter | 8.30 in |
| Ab - Cage-Cone Frontface Clearance | 0.11 in |
| Aa - Cage-Cone Backface Clearance | 0.17 in |
| a - Effective Center Location3 | 0.09 in |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 22300 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 85900 lbf |
| C0 - Static Radial Rating | 138000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 18600 lbf |
| K - Factor7 | 1.2 |
| e - ISO Factor8 | 0.49 |
| Y - ISO Factor9 | 1.23 |
| G1 - Heat Generation Factor (Roller-Raceway)10 | 363 |
| G2 - Heat Generation Factor (Rib-Roller End) | 63.3 |
| Cg - Geometry Factor11 | 0.134 |