Komatsu RAIL 21T-53-32871 HANDRAIL
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
Komatsu RAIL 21T-53-32871 HANDRAIL Size Chart (mm/inches) |
|---|
| Bearing number | 7018 CD/HCP4AH1 |
| Size (mm) | 90x140x24 |
| Bore Diameter (mm) | 90 |
| Outer Diameter (mm) | 140 |
| Width (mm) | 24 |
| d | 90 mm |
| D | 140 mm |
| B | 24 mm |
| d1 | 105.4 mm |
| d2 | 105.4 mm |
| D1 | 124.6 mm |
| K | 0.5 mm |
| C1 | 6.85 mm |
| r1,2 - min. | 1.5 mm |
| r3,4 - min. | 1 mm |
| a | 27.5 mm |
| da - min. | 97 mm |
| db - min. | 97 mm |
| Da - max. | 133 mm |
| Db - max. | 136 mm |
| ra - max. | 1.5 mm |
| rb - max. | 1 mm |
| dn | 108.7 mm |
| Basic dynamic load rating - C | 79.3 kN |
| Basic static load rating - C0 | 76.5 kN |
| Fatigue load limit - Pu | 3 kN |
| Limiting speed for grease lubrication | 11000 r/min |
| Limiting speed for oil lubrication | 18000 mm/min |
| Ball - Dw | 15.875 mm |
| Ball - z | 20 |
| Gref | 15 cm3 |
| Calculation factor - f0 | 15.6 |
| Preload class A - GA | 300 N |
| Preload class B - GB | 600 N |
| Preload class C - GC | 1200 N |
| Preload class D - GD | 2400 N |
| Calculation factor - f | 1.14 |
| 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 | 114 N/micron |
| Preload class B | 156 N/micron |
| Preload class C | 220 N/micron |
| Preload class D | 319 N/micron |
| d1 | 105.4 mm |
| d2 | 105.4 mm |
| D1 | 124.6 mm |
| C1 | 6.85 mm |
| r1,2 min. | 1.5 mm |
| r3,4 min. | 1 mm |
| da min. | 97 mm |
| db min. | 97 mm |
| Da max. | 133 mm |
| Db max. | 136 mm |
| ra max. | 1.5 mm |
| rb max. | 1 mm |
| dn | 108.7 mm |
| Basic dynamic load rating C | 79.3 kN |
| Basic static load rating C0 | 76.5 kN |
| Fatigue load limit Pu | 3 kN |
| Attainable speed for grease lubrication | 11000 r/min |
| Attainable speed for oil-air lubrication | 18000 r/min |
| Ball diameter Dw | 15.875 mm |
| Number of balls z | 20 |
| Reference grease quantity Gref | 15 cm³ |
| Preload class A GA | 300 N |
| Static axial stiffness, preload class A | 114 N/µm |
| Preload class B GB | 600 N |
| Static axial stiffness, preload class B | 156 N/µm |
| Preload class C GC | 1200 N |
| Static axial stiffness, preload class C | 220 N/µm |
| Preload class D GD | 2400 N |
| Static axial stiffness, preload class D | 319 N/µm |
| Calculation factor f | 1.14 |
| 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 | 15.6 |
| Mass bearing | 1.01 kg |