Bearing K81109TN SKF K81109TN SKF bearing Size Chart (mm/inches) |
|---|
| Bearing number | 71821 CD/P4 |
| Size (mm) | 130x105x13 |
| Bore Diameter (mm) | 130 |
| Outer Diameter (mm) | 105 |
| Width (mm) | 13 |
| d | 105 mm |
| D | 130 mm |
| B | 13 mm |
| d1 | 113.2 mm |
| d2 | 113.2 mm |
| D1 | 122 mm |
| r1,2 - min. | 1 mm |
| r3,4 - min. | 0.3 mm |
| a | 22.3 mm |
| da - min. | 109.6 mm |
| db - min. | 109.6 mm |
| Da - max. | 125.4 mm |
| Db - max. | 128 mm |
| ra - max. | 1 mm |
| rb - max. | 0.3 mm |
| dn | 114.6 mm |
| Basic dynamic load rating - C | 22.9 kN |
| Basic static load rating - C0 | 30 kN |
| Fatigue load limit - Pu | 1.2 kN |
| Limiting speed for grease lubrication | 9000 r/min |
| Limiting speed for oil lubrication | 14000 mm/min |
| Ball - Dw | 7.144 mm |
| Ball - z | 35 |
| Gref | 4 cm3 |
| Calculation factor - f0 | 17.4 |
| Preload class A - GA | 130 N |
| Preload class B - GB | 390 N |
| Preload class C - GC | 780 N |
| Calculation factor - f | 1.44 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.09 |
| Calculation factor - f2C | 1.16 |
| Calculation factor - fHC | 1 |
| Preload class A | 96 N/micron |
| Preload class B | 167 N/micron |
| Preload class C | 250 N/micron |
| d1 | 113.2 mm |
| d2 | 113.2 mm |
| D1 | 122 mm |
| r1,2 min. | 1 mm |
| r3,4 min. | 0.3 mm |
| da min. | 109.6 mm |
| db min. | 109.6 mm |
| Da max. | 125.4 mm |
| Db max. | 128 mm |
| ra max. | 1 mm |
| rb max. | 0.3 mm |
| dn | 114.6 mm |
| Basic dynamic load rating C | 22.9 kN |
| Basic static load rating C0 | 30 kN |
| Fatigue load limit Pu | 1.18 kN |
| Attainable speed for grease lubrication | 9000 r/min |
| Attainable speed for oil-air lubrication | 14000 r/min |
| Ball diameter Dw | 7.144 mm |
| Number of balls z | 35 |
| Reference grease quantity Gref | 4 cm³ |
| Preload class A GA | 130 N |
| Static axial stiffness, preload class A | 96 N/µm |
| Preload class B GB | 390 N |
| Static axial stiffness, preload class B | 167 N/µm |
| Preload class C GC | 780 N |
| Static axial stiffness, preload class C | 250 N/µm |
| Calculation factor f | 1.44 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.09 |
| Calculation factor f2C | 1.16 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 17.4 |
| Mass bearing | 0.32 kg |