Komatsu Size Chart (mm/inches) |
|---|
| Bearing number | 4T-A4050/A4138 |
| Size (mm) | 12.7x34.988x10.998 |
| Bore Diameter (mm) | 12,7 |
| Outer Diameter (mm) | 34,988 |
| Width (mm) | 10,998 |
| d | 12,7 mm |
| D | 34,988 mm |
| T | 10,998 mm |
| B | 10,988 mm |
| C | 8,73 mm |
| ra1 max. | 1,3 mm |
| a | 2,5 mm |
| Da | 29 mm |
| db | 17 mm |
| ra max. | 1,3 mm |
| da | 18,5 mm |
| Db | 32 mm |
| Weight | 0,053 Kg |
| Basic dynamic load rating (C) | 12,3 kN |
| Basic static load rating (C0) | 11,6 kN |
| (Grease) Lubrication Speed | 12 000 r/min |
| (Oil) Lubrication Speed | 16 000 r/min |
| Calculation factor (e) | 0,45 |
| Calculation factor (Y0) | 0,73 |
| e | 0.45 |
| Y2 | 1.32 |
| Y0 | 0.73 |
| Mass | 0.05 kg |
| Dynamic load, C | 12.3 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 11.6 kN |
| Fatigue limit load, Cu | 1.41 kN |
| Nlim (oil) | 16,000 rpm |
| Nlim (grease) | 12,000 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| ra max | 1.3 mm |
| r1a max | 1.3 mm |
| Category | Bearings |
| Inventory | 0.0 |
| Manufacturer Name | NTN |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.054 |
| Product Group | B04334 |