All Brands
- Basic parameters
- Spherical roller bearings
- Series
- 21308CK
- Model
- Main Size(mm)
- 40
- d
- 90
- D
- 23
- B
- 1.5
- r smin 3
- Rated base load
- 88
- Dynamic load Cr/kN
- 90
- Static load Cor/kN
- 8950
- Dynamic load Cr/kgf
- 9150
- Static load Cor/kgf
- Allowable speed(rpm) 1
- 3,200
- Grease lubrication
- 4,900
- Oil lubrication
- Installation relationship size(mm)
- 48.5
- d a minmum
- ―
- d a maximum
- ―
- D a minmum
- 81.5
- D a maximum
- 1.5
- r as maximum
- 0.26
- Constant
- Axial load factor
- 2.55
- Y 1
- 3.8
- Y 2
- 2.5
- Y 0
- Weight(about)kg
- 0.705
- Cylindrical hole
- 0.694
- Tapered hole 2
