NTN RNA4910L needle roller bearings
NTN RNA4910L needle roller bearings with easy-to-use parts 47 Bore Diameter (mm) graphics, giving you the ability to check parts availability, pricing, 57 Outer Diameter (mm) examine remanufactured options. 47x57x20 Size (mm)
| Size (mm) | 47x57x20 |
| Bore Diameter (mm) | 47 |
| Outer Diameter (mm) | 57 |
| Width (mm) | 20 |
| Fw | 47 mm |
| D | 57 mm |
| C | 20 mm |
| r min. | 0,3 mm |
| Da max. | 55 mm |
| ra max. | 0,3 mm |
| Weight | 0,095 Kg |
| Basic dynamic load rating (C) | 28,8 kN |
| Basic static load rating (C0) | 55,5 kN |
| (Grease) Lubrication Speed | 5500 r/min |
| rs min | 0.3 mm |
| Dw | 3 mm |
| Lw | 15.6 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k | 3 mm |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0.1 kg |
| Cr | 28.8 kN |
| C0r | 55.5 kN |
| Nlim (grease) | 5,500 rpm |
| Nlim (oil) | 8,500 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.47 Hz |
| Characteristic rolling element frequency, BSF | 16.61 Hz |
| Characteristic outer ring frequency, BPF0 | 15.04 Hz |
| Characteristic inner ring frequency, BPFI | 16.96 Hz |
| Da max | 55 mm |
| ras max | 0.3 mm |
| Inventory | 0.0 |
| Manufacturer Name | NTN |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.1 |
| Product Group | B04144 |
Detailed Parameters
parameter：
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