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ITEM NUMBER
NF256
Cylindrical Roller Bearing - Separable Inner Ring w/ Two Ribs, Outer Ring w/ One Rib
d280,000 mmBore
D500,000 mmOutside diameter
B80,000 mmWidth
Verified by Cat Son before quotationPart number · clearance · precision
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TECHNICAL DATA
Specifications for NF256
Units
Technical Specifications
- Type
- Cylindrical Roller Bearing
- Bore Type
- Round
- Material
- Hardened Alloy Steel
- Cage Material
- High Strength, 2 piece, Machined Brass
- Limiting Speed - Oil
- 1400 RPM
- Limiting Speed - Grease
- 1200 RPM
- Configuration
- One
- Tolerance
- ISO Class 0 (RBEC 1)
- Oil Hole
- w/o Oil Hole
- Radial Internal Clearance
- CN
- Static Load Rating
- 1760000 N 395000 lbf
- Dynamic Load Rating
- 1190000 N 268000 lbf
- Enclosure
- Open
Dimensional Specifications
- d
- 280.000 mm 11.0236 in
- D
- 500.000 mm 19.6850 in
- B
- 80.000 mm 3.1496 in
- Ew
- 440.000 mm 17.3228 in
- J
- 360.000 mm 14.1732 in
- r
- 5.000 mm 0.1969 in
- da min
- 300.000 mm 11.8110 in
- db min
- 300.000 mm 11.8110 in
- Da max
- 480.000 mm 18.8976 in
- Db max
- 480.000 mm 18.8976 in
- Db min
- 446.000 mm 17.5591 in
- r1as max
- 5.000 mm 0.1969 in
DOCUMENTS & SUPPORT
QUICK SUPPORT
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