NTN
Needle roller bearings NA6903R
Bearing NTN NA6903R. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 17 × 30 × 0 mm
d17Bore Ø (mm)
×
D30Outer Ø (mm)
×
B0Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 17 mm |
| D - External diameter | 30 mm |
| C - Width of bearing, drawn cup or outer ring | 23 mm |
| F - Under roller diameter | 22 mm |
| rs - Min fillet radius | 0,3 mm |
| s - Max axial offset | 1 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 2 mm |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,069 kg |
| Cr - Dynamic load rating | 18200000 mN |
| C0r - Static load rating | 27200000 mN |
| N lim - Grease lubrication limit speed | 72000 °/s |
| N lim - Oil lubrication limit speed | 108000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 19 mm |
| Da max - Max shoulder diameter OR | 28 mm |
| ras max - Max shaft & housing fillet radius | 0,3 mm |
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NTN NA6903R