| Series | 78000 |
| Cone Part Number | 78251D |
| Cup Part Number | 78571 |
| Design Units | Imperial |
| Bearing Weight | 10.8 lb |
| Cage Type | Stamped Steel |
| Aa - Cage-Cone Backface Clearance | 0 in |
| d | 2.5000 in |
| D | 5.7080 in |
| B - Double Cone Width | 2.5980 in |
| C - Cup Width | 0.9058 in |
| T - Bearing Width across Cups | 2.5616 in |
| R - Cone Frontface To Clear Radius1 | 0.090 in |
| r - Cup Backface To Clear Radius2 | 0.140 in |
| da - Cone Frontface Backing Diameter | 3.11 in |
| Db - Cup Backface Backing Diameter | 4.65 in |
| Ab - Cage-Cone Frontface Clearance | 0.08 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 9970 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 66900 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 17400 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 14800 lbf |
| K - Factor7 | 0.67 |
| e - ISO Factor8 | 0.87 |
| Y1 - ISO Factor9 | 0.78 |
| Y2 - ISO Factor10 | 1.16 |
| G1 - Heat Generation Factor (Roller-Raceway)11 | 62.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 19.1 |
| Cg - Geometry Factor12 | 0.0884 |
