Komatsu 42C-56-31180 PAD Size Chart (mm/inches) |
|---|
| Bearing number | 7010 CD/HCP4AL |
| Size (mm) | 80x50x16 |
| Bore Diameter (mm) | 80 |
| Outer Diameter (mm) | 50 |
| Width (mm) | 16 |
| d | 50 mm |
| D | 80 mm |
| B | 16 mm |
| d1 | 59.2 mm |
| d2 | 59.2 mm |
| D1 | 70.8 mm |
| b | 2 mm |
| C1 | 8.6 mm |
| C2 | 3.6 mm |
| C3 | 2.8 mm |
| r1,2 - min. | 1 mm |
| r3,4 - min. | 0.3 mm |
| a | 16.8 mm |
| da - min. | 54.6 mm |
| db - min. | 54.6 mm |
| Da - max. | 75.4 mm |
| Db - max. | 78 mm |
| ra - max. | 1 mm |
| rb - max. | 0.3 mm |
| dn | 61.2 mm |
| Basic dynamic load rating - C | 29.6 kN |
| Basic static load rating - C0 | 24 kN |
| Fatigue load limit - Pu | 1 kN |
| Limiting speed for grease lubrication | 20000 r/min |
| Limiting speed for oil lubrication | 32000 mm/min |
| Ball - Dw | 9.525 mm |
| Ball - z | 18 |
| Gref | 3.6 cm3 |
| Calculation factor - f0 | 15.4 |
| Preload class A - GA | 110 N |
| Preload class B - GB | 220 N |
| Preload class C - GC | 440 N |
| Preload class D - GD | 880 N |
| Calculation factor - f | 1.11 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.05 |
| Calculation factor - f2D | 1.09 |
| Calculation factor - fHC | 1.02 |
| Preload class A | 64 N/micron |
| Preload class B | 88 N/micron |
| Preload class C | 124 N/micron |
| Preload class D | 179 N/micron |
| d1 | 59.2 mm |
| d2 | 59.2 mm |
| D1 | 70.8 mm |
| C1 | 8.6 mm |
| C2 | 3.6 mm |
| C3 | 2.8 mm |
| r1,2 min. | 1 mm |
| r3,4 min. | 0.3 mm |
| da min. | 54.6 mm |
| db min. | 54.6 mm |
| Da max. | 75.4 mm |
| Db max. | 78 mm |
| ra max. | 1 mm |
| rb max. | 0.3 mm |
| dn | 61.2 mm |
| Basic dynamic load rating C | 29.6 kN |
| Basic static load rating C0 | 24 kN |
| Fatigue load limit Pu | 1.02 kN |
| Attainable speed for grease lubrication | 20000 r/min |
| Attainable speed for oil-air lubrication | 32000 r/min |
| Ball diameter Dw | 9.525 mm |
| Number of balls z | 18 |
| Reference grease quantity Gref | 3.6 cm³ |
| Preload class A GA | 110 N |
| Static axial stiffness, preload class A | 64 N/µm |
| Preload class B GB | 220 N |
| Static axial stiffness, preload class B | 88 N/µm |
| Preload class C GC | 440 N |
| Static axial stiffness, preload class C | 124 N/µm |
| Preload class D GD | 880 N |
| Static axial stiffness, preload class D | 179 N/µm |
| Calculation factor f | 1.11 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor f2D | 1.09 |
| Calculation factor fHC | 1.02 |
| Calculation factor f0 | 15.4 |
| Mass bearing | 0.22 kg |