All Brands
- Basic Parame
- Double inner ring of tapered roller bearings
- Series
- 78251D/78551
- Model
- 78251D
- Inner ring
- 78551
- Outer ring
- Y1S-78551
- Spacer(4)
- Size(mm)
- 63.500
- d
- 140.030
- D
- 66.091
- T
- 65.989
- B
- Rated load，N
- 276000
- Dynamic load（1）C1
- 0.87
- Dynamic load（1）e
- 0.78
- Coefficient（5）Y1
- 1.16
- Coefficient（5）Y2
- 41100
- Dynamic load（2）C90
- 60900
- Dynamic load（2）Ca90
- 71500
- Coefficient（5）C90（2）
- 0.67
- Coefficient（5）K
- Size，mm
- 2.3
- Axis maximum shoulder chamfer radius R(3)
- 79.0
- Shoulder diameterDa
- 2.3
- Bearing housing maximum shoulder chamfer radius r(3)
- 117.0
- Bearing seat shoulder diameter Db
- Coefficient
- 62.6
- G1
- 19.1
- G2
- 0.0884
- Cg
- Weight
- 4.76
- kg
