Needle roller bearing, machined-rings, with inner ring, double-side ribs
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Product information
| PRODUCT DEFINITION | |
|---|---|
| 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 |
| PRODUCT PERFORMANCE | |
|---|---|
| Cr - Dynamic load rating | 455 kN |
| C0r - Static load rating | 1300 kN |
| N lim - Grease lubrication limit speed | 850 tr/min |
| N lim - Oil lubrication limit speed | 1300 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| 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 |