| model | M278749DW-M278710 |
| type | bearing |
| Cone Part Number | M278749DW |
| Cup Part Number | M278710 |
| Metering System | Imperial |
| Bearing Type | Roller |
| Roller Bearing Type | Tapered roller |
| Load Direction | Radial force and axial force |
| Structure | Double row |
| Seal Type | Open |
| Outer ring type | Standard Type |
| series | M278700 |
| Inside Diameter | 22.5" |
| Inner Diameter Tolerance | +0.051" to 0 |
| Outer Diameter | 32" |
| Outer Diameter Tolerance | +0.076" to 0 |
| Double Cone Width | 11.25" |
| Double Cone Width | +0.076" to -0.254" |
| Cup width | 4.75" |
| Cup Width | +0.051" to -0.254" |
| Bearing width across cup body | 11.2499" |
| Bearing width across cup | +0.381" to-0.381" |
| Cone back to clearance radius | 0.13" |
| Cup back to cleaning radius | 0.25" |
| Cup front backing diameter | 23.98" |
| Cup backing diameter | 29.76" |
| Dynamic Radial Load | 1770000 lbf |
| Ferrule Material | 51200 Chrome steel |
| Roller material | 51200 Chrome steel |
| Cage Material | Pin-Type |
| Dynamic Radial Rating (90 million revolutions in two columns) | 264000 lbf |
| Dynamic Thrust Rating (90 million rpm) (Ca90) | 150000 lbf |
| Dynamic Radial Rating (90 million revolutions in two columns) | 460000 lbf |
| Lubricant | Lubricant Added |
| Temperature Range | -30° to 110 °C |
| ABEC Standard | ABEC-1 |
| Clearance Range | Standard (applicable to C3/C4/C5) |
| RoHS Standard | Conform |
| REACH Standard | Conform |
| Weight | 1059.70 lb |