Komatsu Size Chart (mm/inches) |
|---|
| Bearing number | 32909XU |
| Size (mm) | 45x68x15 |
| Bore Diameter (mm) | 45 |
| Outer Diameter (mm) | 68 |
| Width (mm) | 15 |
| d | 45 mm |
| D | 68 mm |
| T | 15 mm |
| B | 15 mm |
| C | 12 mm |
| ra1 max. | 0,6 mm |
| a | 12 mm |
| r min. | 0,6 mm |
| r1 min. | 0,6 mm |
| da min. | 50 mm |
| Da min | 59,5 mm |
| Da max. | 63,5 mm |
| db max. | 50 mm |
| Db min. | 64,5 mm |
| ra max. | 0,6 mm |
| Sa | 3 mm |
| Sb | 3 mm |
| Weight | 0,188 Kg |
| Basic dynamic load rating (C) | 33,5 kN |
| Basic static load rating (C0) | 51,5 kN |
| (Grease) Lubrication Speed | 5 300 r/min |
| (Oil) Lubrication Speed | 7 000 r/min |
| Calculation factor (e) | 0,32 |
| Calculation factor (Y0) | 1,04 |
| rs min | 0.6 mm |
| r1s min | 0.6 mm |
| e | 0.32 |
| Y2 | 1.88 |
| Y0 | 1.04 |
| Mass | 0.19 kg |
| ISO 355 reference | T2BC045 |
| Dynamic load, C | 33.5 kN |
| Rating life coefficient, A2 | 1 |
| Static load, C0 | 51.5 kN |
| Fatigue limit load, Cu | 6.3 kN |
| Nlim (oil) | 7,000 rpm |
| Nlim (grease) | 5,300 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| da max | 50 mm |
| db min | 50 mm |
| Da max | 63.5 mm |
| Db min | 64.5 mm |
| ra max | 0.6 mm |
| r1a max | 0.6 mm |