NTN
Needle roller bearings NK55/25R+1R50X55X25
Bearing NTN NK55/25R+1R50X55X25. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 50 × 68 × 0 mm
d50Bore Ø (mm)
×
D68Outer Ø (mm)
×
B0Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 50 mm |
| D - External diameter | 68 mm |
| C - Width of bearing, drawn cup or outer ring | 25 mm |
| F - Under roller diameter | 55 mm |
| rs - Min fillet radius | 0,6 mm |
| s - Max axial offset | 1,5 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 3 mm |
| Inner ring reference | 1R50X55X25 |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,271 kg |
| Cr - Dynamic load rating | 41000000 mN |
| C0r - Static load rating | 82000000 mN |
| N lim - Grease lubrication limit speed | 30000 °/s |
| N lim - Oil lubrication limit speed | 45000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 53 mm |
| Da max - Max shoulder diameter OR | 64 mm |
| ras max - Max shaft & housing fillet radius | 0,6 mm |
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NTN NK55/25R+1R50X55X25