Needle roller bearing, machined-rings, with inner ring, double-side ribs, lubrication hole
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| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Internal diameter | 42 mm |
| D - External diameter | 57 mm |
| C - Width of bearing, drawn cup or outer ring | 30 mm |
| F - Under roller diameter | 47 mm |
| rs - Min fillet radius | 0,3 mm |
| s - Max axial offset | 1 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 3 mm |
| Inner ring reference | 1R42X47X30 |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,222 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| Cr - Dynamic load rating | 42,5 kN |
| C0r - Static load rating | 91,5 kN |
| Nlim - Grease lubrication limit speed | 5500 tr/min |
| Nlim - Oil lubrication limit speed | 8500 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 44 mm |
| Da max - Max shoulder diameter OR | 55 mm |
| ras max - Max shaft & housing fillet radius | 0,3 mm |