Komatsu 21N-62-18542 Supporting wheel
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
Komatsu 21N-62-18542 Supporting wheel Size Chart (mm/inches) |
|---|
| Bearing number | 71913 CD/P4AL |
| Size (mm) | 90x65x13 |
| Bore Diameter (mm) | 90 |
| Outer Diameter (mm) | 65 |
| Width (mm) | 13 |
| d | 65 mm |
| D | 90 mm |
| B | 13 mm |
| d1 | 72.7 mm |
| d2 | 72.7 mm |
| D1 | 82.3 mm |
| b | 2.2 mm |
| C1 | 6.5 mm |
| C2 | 3.2 mm |
| C3 | 2 mm |
| r1,2 - min. | 1 mm |
| r3,4 - min. | 0.3 mm |
| a | 17 mm |
| da - min. | 69.6 mm |
| db - min. | 69.6 mm |
| Da - max. | 85.4 mm |
| Db - max. | 88 mm |
| ra - max. | 1 mm |
| rb - max. | 0.3 mm |
| dn | 74.7 mm |
| Basic dynamic load rating - C | 20.8 kN |
| Basic static load rating - C0 | 17 kN |
| Fatigue load limit - Pu | 0.71 kN |
| Limiting speed for grease lubrication | 14000 r/min |
| Limiting speed for oil lubrication | 22000 mm/min |
| Ball - Dw | 7.938 mm |
| Ball - z | 26 |
| Gref | 2.85 cm3 |
| Calculation factor - f0 | 10.7 |
| Preload class A - GA | 80 N |
| Preload class B - GB | 160 N |
| Preload class C - GC | 320 N |
| Preload class D - GD | 640 N |
| Calculation factor - f | 1.2 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.04 |
| Calculation factor - f2C | 1.09 |
| Calculation factor - f2D | 1.15 |
| Calculation factor - fHC | 1 |
| Preload class A | 56 N/micron |
| Preload class B | 75 N/micron |
| Preload class C | 104 N/micron |
| Preload class D | 148 N/micron |
| d1 | 72.7 mm |
| d2 | 72.7 mm |
| D1 | 82.3 mm |
| C1 | 6.5 mm |
| C2 | 3.2 mm |
| C3 | 2 mm |
| r1,2 min. | 1 mm |
| r3,4 min. | 0.3 mm |
| da min. | 69.6 mm |
| db min. | 69.6 mm |
| Da max. | 85.4 mm |
| Db max. | 88 mm |
| ra max. | 1 mm |
| rb max. | 0.3 mm |
| dn | 74.7 mm |
| Basic dynamic load rating C | 20.8 kN |
| Basic static load rating C0 | 17 kN |
| Fatigue load limit Pu | 0.71 kN |
| Attainable speed for grease lubrication | 14000 r/min |
| Attainable speed for oil-air lubrication | 22000 r/min |
| Ball diameter Dw | 7.938 mm |
| Number of balls z | 26 |
| Reference grease quantity Gref | 2.85 cm³ |
| Preload class A GA | 80 N |
| Static axial stiffness, preload class A | 56 N/µm |
| Preload class B GB | 160 N |
| Static axial stiffness, preload class B | 75 N/µm |
| Preload class C GC | 320 N |
| Static axial stiffness, preload class C | 104 N/µm |
| Preload class D GD | 640 N |
| Static axial stiffness, preload class D | 148 N/µm |
| Calculation factor f | 1.2 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.04 |
| Calculation factor f2C | 1.09 |
| Calculation factor f2D | 1.15 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 10.7 |
| Mass bearing | 0.21 kg |