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ITEM NUMBER
NA4928
Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series
d140,000 mmBore
D190,000 mmOutside diameter
B50,000 mmWidth
Verified by Cat Son before quotationPart number · clearance · precision
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TECHNICAL DATA
Specifications for NA4928
Units
Technical Specifications
- Type
- Needle Roller Bearing
- Bore Type
- Round
- Material
- High Carbon Chrome Steel
- Cage Material
- Steel
- Limiting Speed - Oil
- 2500.0 RPM
- Limiting Speed - Grease
- 1700 RPM
- Precision
- ISO Class 0
- Configuration
- One
- Enclosure
- Open
- Bearing Design
- w/ Inner Ring
- Oil Hole
- w/ Oil Hole
- Radial Internal Clearance
- CN
- Static Load Rating
- 485000 N 109033 lbf
- Dynamic Load Rating
- 209000 N 46985 lbf
- Weight
- 4.050 kg 8.930 lb
- Operating Temperature Range
- -40 to 120 ºC -40 to 250 ºF
Dimensional Specifications
- d
- 140.000 mm 5.5120 in
- D
- 190.000 mm 7.4803 in
- F
- 160.000 mm 6.2992 in
- B
- 50.000 mm 1.9685 in
- r
- 1.500 mm 0.0591 in
- s
- 1.500 mm 0.0591 in
- da min
- 148.000 mm 5.8268 in
- Da max
- 182.000 mm 7.1654 in
- ras max
- 1.500 mm 0.0591 in
DOCUMENTS & SUPPORT
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