| D |
250 mm |
| k |
4 mm |
| C |
50 mm |
| Cr |
231 kN |
| Lw |
40 mm |
| Fw |
220 mm |
| Dw |
7.5 mm |
| C0r |
705 kN |
| Mass |
3.35 kg |
| rs min |
1.5 mm |
| Da max |
242 mm |
| Weight |
3,35 Kg |
| r min. |
1,5 mm |
| ras max |
1.5 mm |
| ra max. |
1,5 mm |
| Da max. |
242 mm |
| Category |
Bearings |
| Size (mm) |
220x250x50 |
| Inventory |
0.0 |
| Nlim (oil) |
1,800 rpm |
| Width (mm) |
50 |
| Nlim (grease) |
1,200 rpm |
| Product Group |
B04144 |
| Bearing number |
RNA4840 |
| Precision class |
P0 |
| Weight / Kilogram |
3.35 |
| Manufacturer Name |
NTN |
| Bore Diameter (mm) |
220 |
| Outer Diameter (mm) |
250 |
| Minimum Buy Quantity |
N/A |
| Radial clearance class |
CN |
| (Grease) Lubrication Speed |
1200 r/min |
| Basic static load rating (C0) |
705 kN |
| Basic dynamic load rating (C) |
231 kN |
| Lubrication hole on outer ring |
Oui/Yes |
| Max operating temperature, Tmax |
120 °C |
| Min operating temperature, Tmin |
-20 °C |
| Characteristic cage frequency, FTF |
0.48 Hz |
| Characteristic outer ring frequency, BPF0 |
28.04 Hz |
| Characteristic inner ring frequency, BPFI |
29.96 Hz |
| Characteristic rolling element frequency, BSF |
30.3 Hz |
RNA4840 PDF download
