chain-stretcher for roller chain 3/4X7/16" , set of 14050701 + 14080300
| 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 |
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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.