MI-20 Inch Needle Roller Bearing 38.1x52.39x31.75mm Size Chart (mm/inches) |
|---|
| Bearing number | 7019 ACD/HCP4AL |
| Size (mm) | 145x95x24 |
| Bore Diameter (mm) | 145 |
| Outer Diameter (mm) | 95 |
| Width (mm) | 24 |
| d | 95 mm |
| D | 145 mm |
| B | 24 mm |
| d1 | 110.4 mm |
| d2 | 110.4 mm |
| D1 | 129.6 mm |
| b | 2.2 mm |
| C1 | 13.4 mm |
| C2 | 5.2 mm |
| C3 | 4.3 mm |
| r1,2 - min. | 1.5 mm |
| r3,4 - min. | 1 mm |
| a | 40.1 mm |
| da - min. | 102 mm |
| db - min. | 102 mm |
| Da - max. | 138 mm |
| Db - max. | 141 mm |
| ra - max. | 1.5 mm |
| rb - max. | 1 mm |
| dn | 113.7 mm |
| Basic dynamic load rating - C | 76.1 kN |
| Basic static load rating - C0 | 76.5 kN |
| Fatigue load limit - Pu | 2.9 kN |
| Limiting speed for grease lubrication | 10000 r/min |
| Limiting speed for oil lubrication | 16000 mm/min |
| Ball - Dw | 15.875 mm |
| Ball - z | 21 |
| Gref | 15.6 cm3 |
| Calculation factor - e | 0.68 |
| Calculation factor - Y2 | 0.87 |
| Calculation factor - Y0 | 0.38 |
| Calculation factor - X2 | 0.41 |
| Calculation factor - Y1 | 0.92 |
| Calculation factor - Y2 | 1.41 |
| Calculation factor - Y0 | 0.76 |
| Calculation factor - X2 | 0.67 |
| Preload class A - GA | 480 N |
| Preload class B - GB | 960 N |
| Preload class C - GC | 1920 N |
| Preload class D - GD | 3840 N |
| Calculation factor - f | 1.15 |
| Calculation factor - f1 | 0.99 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.05 |
| Calculation factor - f2D | 1.08 |
| Calculation factor - fHC | 1.02 |
| Preload class A | 286 N/micron |
| Preload class B | 374 N/micron |
| Preload class C | 497 N/micron |
| Preload class D | 673 N/micron |
| d1 | 110.4 mm |
| d2 | 110.4 mm |
| D1 | 129.6 mm |
| C1 | 13.4 mm |
| C2 | 5.2 mm |
| C3 | 4.3 mm |
| r1,2 min. | 1.5 mm |
| r3,4 min. | 1 mm |
| da min. | 102 mm |
| db min. | 102 mm |
| Da max. | 138 mm |
| Db max. | 141 mm |
| ra max. | 1.5 mm |
| rb max. | 1 mm |
| dn | 113.7 mm |
| Basic dynamic load rating C | 76.1 kN |
| Basic static load rating C0 | 76.5 kN |
| Fatigue load limit Pu | 2.9 kN |
| Attainable speed for grease lubrication | 10000 r/min |
| Attainable speed for oil-air lubrication | 16000 r/min |
| Ball diameter Dw | 15.875 mm |
| Number of balls z | 21 |
| Reference grease quantity Gref | 15.6 cm³ |
| Preload class A GA | 480 N |
| Static axial stiffness, preload class A | 286 N/µm |
| Preload class B GB | 960 N |
| Static axial stiffness, preload class B | 374 N/µm |
| Preload class C GC | 1920 N |
| Static axial stiffness, preload class C | 497 N/µm |
| Preload class D GD | 3840 N |
| Static axial stiffness, preload class D | 673 N/µm |
| Calculation factor f | 1.15 |
| Calculation factor f1 | 0.99 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor f2D | 1.08 |
| Calculation factor fHC | 1.02 |
| Calculation factor e | 0.68 |
| Calculation factor (single, tandem) Y2 | 0.87 |
| Calculation factor (single, tandem) Y0 | 0.38 |
| Calculation factor (single, tandem) X2 | 0.41 |
| Calculation factor (back-to-back, face-to-face) Y1 | 0.92 |
| Calculation factor (back-to-back, face-to-face) Y2 | 1.41 |
| Calculation factor (back-to-back, face-to-face) Y0 | 0.76 |
| Calculation factor (back-to-back, face-to-face) X2 | 0.67 |
| Mass bearing | 1 kg |