NTN
Needle roller bearings NA4856
Bearing NTN NA4856, Ø280×350×69 mm. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 280 × 350 × 69 mm
d280Bore Ø (mm)
×
D350Outer Ø (mm)
×
B69Width (mm)
Request quote
In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 280 mm |
| D - External diameter | 350 mm |
| C - Width of bearing, drawn cup or outer ring | 69 mm |
| F - Under roller diameter | 305 mm |
| rs - Min fillet radius | 2 mm |
| s - Max axial offset | 2,5 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 4 mm |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 15,5 kg |
| Cr - Dynamic load rating | 455000000 mN |
| C0r - Static load rating | 1300000000 mN |
| N lim - Grease lubrication limit speed | 5100 °/s |
| N lim - Oil lubrication limit speed | 7800 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 289 mm |
| Da max - Max shoulder diameter OR | 341 mm |
| ras max - Max shaft & housing fillet radius | 2 mm |
Related products
NTN NA4856