NTN
Cylindrical roller bearings NU256
Bearing NTN NU256, Ø280×500×80 mm. Request a quote — worldwide shipping.
Type Cylindrical roller bearings
Dimensions
Ø 280 × 500 × 80 mm
d280Bore Ø (mm)
×
D500Outer Ø (mm)
×
B80Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 280 mm |
| D - External diameter | 500 mm |
| B - Bearing/Inner ring width | 80 mm |
| E - Upper roller diameter | 440 mm |
| F - Under roller diameter | 340 mm |
| rs - Min fillet radius | 5 mm |
| r1s - Min fillet radius | 5 mm |
| Radial clearance class | CN |
| Mass | 70,8 kg |
| C - Dynamic load | 1320000000 mN |
| C0 - Static load | 1760000000 mN |
| Cu - Fatigue limit load | 143000000 mN |
| N lim - Oil lubrication limit speed | 8400 °/s |
| N lim - Grease lubrication limit speed | 7200 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 300 mm |
| da max - Small face shoulder max diameter | 336 mm |
| db min - Min inner ring GO diameter | 343 mm |
| Da max - Max shoulder diameter OR | 480 mm |
| ra max - Max fillet radius | 4 mm |
| r1a - Max fillet radius | 4 mm |
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NTN NU256