Tensioning element Boomerang size 3 normal force 405 N hard 506 N
| Size | 3 |
|---|---|
| F max. at normal [N] | 405 |
| F max. at hard [N] | 506 |
| s max. normal [mm] | 65 |
| s max. hard [mm] | 50 |
| D [mm] | 78 |
| E [mm] | 108 +2,0 -0,5 |
| G [mm] | 8 |
| H [mm] | M12 |
| J1 [mm] | 130 |
| J2 [mm] | 100 |
| K [mm] | 50 |
| L [mm] | 155 |
| M [mm] | 40 |
| N [mm] | 52 |
| O [mm] | 15 |
| P [mm] | 10,5 |
| Q [mm] | 34,3 |
| T [mm] | 12,5 |
| MA [Nm] | 86 |
| Weight [kg] | 2,1 |
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Material: Housing sintered steel, lever St52. These tensioning elements are used to compensate the slack in extremely long chain drives. The slack length passes in an S-shape through the supplied sprockets or pulleys so that the lever works as a compensator. This system thus offers a triple compensation of the slack compared to standard tensioners.