Material: Housing sintered steel or grey cast iron GG20, lever St52, sprocket made of steel. This tensioning element, a continually-tensioning torsion element, prolongs the service life of chain and belt drives by at least 30%, and radically reduces maintenance and repair work. The unique operating principle of this spring offers a long tensioning distance, especially as the lever can be pre-tensioned by up to 30° in both directions. The permanent torsion force does not only automatically compensate the chain elongation, the rubber mounted element also dampens vibrations and shocks in the entire drive. Other advantages: chain track adjustable, rubber suspension, adjustable at an angle of 360º, tensioning pressure steplessly adjustable from 'normal' to 'hard'. Can be used for both tensioning directions.
| DIN / ISO-Nr. | 12 B-1 |
|---|---|
| Pitch (in.) | 3/4 x 7/16 |
| No. of Teeth | 15 |
| Pitch Circle Ø (mm) | 91,63 |
| Clamping Element (Size) | 3 |
| Max. Clamping Force (N) | 810 |
| D (mm) | 78 |
| E (mm) | 108 +2-0,5 |
| G (mm) | 8 |
| H (mm) | M 12 |
| J (mm) | 130 |
| K (mm) | 50 |
| N (mm) | 52 |
| O (mm) | 15 |
| R (mm) | 42-80 |
| Smax. (mm) | 65,0 |
| U (mm) | 27 |
| V (mm) | 115 |
| W (mm) | M 12 |
| Weight (kg) | 2,25 |
