Komatsu BACK REST Size Chart (mm/inches) |
|---|
| d | 50 mm |
| D | 90 mm |
| B | 20 mm |
| E | 81.5 mm |
| F | 59.5 mm |
| d1 | 63.9 mm |
| rs min | 1.1 mm |
| r1s min | 1.1 mm |
| Radial clearance class | CN |
| Mass (without HJ ring) | 0.51 kg |
| Dynamic load, C | 66 kN |
| Static load, C0 | 72 kN |
| Fatigue limit load, Cu | 8.8 kN |
| Nlim (oil) | 8,100 rpm |
| Nlim (grease) | 6,900 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.42 Hz |
| Characteristic rolling element frequency, BSF | 6.25 Hz |
| Characteristic outer ring frequency, BPF0 | 6.75 Hz |
| Characteristic inner ring frequency, BPFI | 9.25 Hz |
| da min | 56.5 mm |
| dc min | 67 mm |
| Da max | 83.5 mm |
| ra max | 1 mm |