| Bearing number |
4T-44158/44348 |
| Size (mm) |
39.688x88.5x25.4 |
| Bore Diameter (mm) |
39,688 |
| Outer Diameter (mm) |
88,5 |
| Width (mm) |
25,4 |
| d |
39,688 mm |
| D |
88,5 mm |
| T |
25,4 mm |
| B |
23,698 mm |
| C |
17,462 mm |
| ra1 max. |
1,5 mm |
| a - |
2,9 mm |
| Da |
75 mm |
| db |
51 mm |
| ra max. |
3,5 mm |
| da |
58 mm |
| Db |
84 mm |
| Weight |
0,691 Kg |
| Basic dynamic load rating (C) |
70,5 kN |
| Basic static load rating (C0) |
78 kN |
| (Grease) Lubrication Speed |
4 000 r/min |
| (Oil) Lubrication Speed |
5 300 r/min |
| Calculation factor (e) |
0,78 |
| Calculation factor (Y0) |
0,42 |
| d1 |
66 mm |
| a |
28.3 mm |
| e |
0.78 |
| Y2 |
0.77 |
| Y0 |
0.42 |
| Mass |
0.69 kg |
| Dynamic load, C |
70.5 kN |
| Rating life coefficient, A2 |
1.4 |
| Static load, C0 |
78 kN |
| Fatigue limit load, Cu |
9.5 kN |
| Nlim (oil) |
5,300 rpm |
| Nlim (grease) |
4,000 rpm |
| Min operating temperature, Tmin |
-40 °C |
| Max operating temperature, Tmax |
120 °C |
| Characteristic cage frequency, FTF |
0.42 Hz |
| Characteristic rolling element frequency, BSF |
5.64 Hz |
| Characteristic outer ring frequency, BPF0 |
6.35 Hz |
| Characteristic inner ring frequency, BPFI |
8.65 Hz |
| ra max |
3.5 mm |
| r1a max |
1.5 mm |