NTN
Needle roller bearings NA49/28R
Bearing NTN NA49/28R, Ø28×45×17 mm. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 28 × 45 × 17 mm
d28Bore Ø (mm)
×
D45Outer Ø (mm)
×
B17Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 28 mm |
| D - External diameter | 45 mm |
| C - Width of bearing, drawn cup or outer ring | 17 mm |
| F - Under roller diameter | 32 mm |
| rs - Min fillet radius | 0,3 mm |
| s - Max axial offset | 0,8 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 2,5 mm |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,098 kg |
| Cr - Dynamic load rating | 24800000 mN |
| C0r - Static load rating | 33500000 mN |
| N lim - Grease lubrication limit speed | 51000 °/s |
| N lim - Oil lubrication limit speed | 78000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 30 mm |
| Da max - Max shoulder diameter OR | 43 mm |
| ras max - Max shaft & housing fillet radius | 0,3 mm |
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NTN NA49/28R