| Bearing number |
ML71904HVUJ74S |
| Size (mm) |
20x37x9 |
| Bore Diameter (mm) |
20 |
| Outer Diameter (mm) |
37 |
| Width (mm) |
9 |
| d |
20 mm |
| D |
37 mm |
| B |
9 mm |
| C |
9 mm |
| Angle (α) |
20 ° |
| d1 |
25.1 mm |
| d2 |
23.9 mm |
| D1 |
32.15 mm |
| D2 |
33.45 mm |
| a |
11 mm |
| Contact angle α |
25 ° |
| rs min |
0.3 mm |
| r1s min |
0.3 mm |
| f0 |
7.96 |
| Precision class |
P4S |
| Mass |
0.04 kg |
| Dynamic load, C |
3.7 kN |
| Static load, C0 |
1.82 kN |
| Fatigue limit load, Cu |
0.11 kN |
| Nlim (oil) |
68,000 rpm |
| Nlim (grease) |
47,000 rpm |
| Axial displacement K Factor |
0.99 |
| Preload level |
7 |
| Preload value |
0.03 kN |
| Axial rigidity |
44 N/µm |
| Radial rigidity |
98 N/µm |
| Min operating temperature, Tmin |
-30 °C |
| Max operating temperature, Tmax |
120 °C |
| Characteristic cage frequency, FTF |
0.44 Hz |
| Characteristic rolling element frequency, BSF |
6.91 Hz |
| Characteristic outer ring frequency, BPF0 |
6.97 Hz |
| Characteristic inner ring frequency, BPFI |
9.03 Hz |
| da min |
22.5 mm |
| db min |
22.5 mm |
| Da max |
34.5 mm |
| Db max |
34.5 mm |
| r1a max |
0.3 mm |
| ra max |
0.3 mm |
| D6 |
26.6 mm |