| Bearing number |
4T-645/632 |
| Size (mm) |
71.438x136.525x41.275 |
| Bore Diameter (mm) |
71,438 |
| Outer Diameter (mm) |
136,525 |
| Width (mm) |
41,275 |
| d |
71,438 mm |
| D |
136,525 mm |
| T |
41,275 mm |
| B |
41,275 mm |
| C |
31,75 mm |
| a |
29.9 mm |
| rs min |
6.4 mm |
| r1s min |
3.5 mm |
| e |
0.36 |
| Y2 |
1.66 |
| Y0 |
0.91 |
| Mass |
2.53 kg |
| Dynamic load, C |
194 kN |
| Rating life coefficient, A2 |
1.4 |
| Static load, C0 |
262 kN |
| Nlim (oil) |
3,800 rpm |
| Nlim (grease) |
2,800 rpm |
| Min operating temperature, Tmin |
-40 °C |
| Max operating temperature, Tmax |
120 °C |
| Characteristic cage frequency, FTF |
0.43 Hz |
| Characteristic rolling element frequency, BSF |
6.54 Hz |
| Characteristic outer ring frequency, BPF0 |
7.7 Hz |
| Characteristic inner ring frequency, BPFI |
10.3 Hz |
| ra max |
6.4 mm |
| r1a max |
3.3 mm |