All Brands
- Basic parameters
- Double row cylindrical roller bearings
- Series
- NNU4976
- Model
- Main Size(mm)
- 380
- d
- 520
- D
- 140
- B
- 4
- r smin 1
- Rated base load
- 1,630
- Dynamic load Cr/kN
- 4,050
- Static load Cor/kN
- 167??000
- Dynamic load Cr/kgf
- 415,000
- Static load Cor/kgf
- Allowable speed(rpm)
- 1,000
- Grease lubrication
- 1,200
- Oil lubrication
- Size(mm)
- 425
- Fw
- ―
- Ew
- Installation relationship size(mm)
- 396
- d a minmum
- 408
- d b minmum
- 420
- d cmaximum
- 430
- d d minmum
- 504
- Da maximum
- ―
- D b maximum
- ―
- D bminmum
- 3
- r as maximum
- Weight(about)kg
- 84.5
- NNU Cylindrical hole
- 80.6
- NNU Tapered hole
- ―
- NN Cylindrical hole
- ―
- NN Tapered hole
