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ITEM NUMBER
NA4980
Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series
d400,000 mmBore
D540,000 mmOutside diameter
B140,000 mmWidth
Verified by Cat Son before quotationPart number · clearance · precision
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TECHNICAL DATA
Specifications for NA4980
Units
Technical Specifications
- Type
- Needle Roller Bearing
- Bore Type
- Round
- Material
- High Carbon Chrome Steel
- Cage Material
- Steel
- Limiting Speed - Oil
- 900 RPM
- Limiting Speed - Grease
- 600 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
- 4000000 N 900000 lbf
- Dynamic Load Rating
- 1450000 N 325000 lbf
- Weight
- 76.600 kg 168.874 lb
- Operating Temperature Range
- -40 to 120 ºC -40 to 250 ºF
Dimensional Specifications
- d
- 400.000 mm 15.7480 in
- D
- 540.000 mm 21.2598 in
- F
- 450.000 mm 17.7165 in
- B
- 140.000 mm 5.5118 in
- r
- 4.000 mm 0.1575 in
- s
- 2.500 mm 0.0984 in
- da min
- 416.000 mm 16.3780 in
- Da max
- 524.000 mm 20.6299 in
- ras max
- 3.000 mm 0.1181 in
DOCUMENTS & SUPPORT
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