All Brands
- Basic parameters
- Angular contact ball bearings
- Series
- 7221B
- Model
- Main Size(mm)
- 105
- d
- 190
- D
- 36
- B
- 72
- 2 B
- 2.1
- r smin 2
- 1.1
- r 1smin 2
- Rated base load
- 142
- Dynamic load Cr/kN
- 129
- Static load Cor/kN
- 14,500
- Dynamic load Cr/kgf
- 13,100
- Static load Cor/kgf
- Allowable speed(rpm)
- 3,200
- Grease lubrication
- 4,300
- Oil lubrication
- 7221B
- Bearing number
- Point of action(mm)
- 80
- a
- Mass(kg)
- 3.87
- Single column(about)
- Rated base load
- 231
- Dynamic load Cr/(双列) kN
- 258
- Static load Cor/( Double column ) kN
- 23,500
- Dynamic load Cr/( Double column ) kgf
- 26,300
- Static load Cor/( Double column ) kgf
- Allowable speed(rpm)( Double column )
- 2,600
- Grease lubrication
- 3,500
- Oil lubrication
- Bearing number
- DB
- DB
- DF
- DF
- DT
- DT
- Installation relationship size(mm)
- 117
- da minmum
- 112
- db minmum
- 178
- Da maximum
- 183
- Db maximum
- 2
- r as maximun
- 1
- r 1as maximun
