
Worm gear units 48 / GFC Product Catalog 2012 Attachable worm gearboxes are to be axially attached on the work machine shaft. The exertion of force with an elastic socket dampens torqueimpactsandpreventstensionintheactuator.Alwaysconsider thatthisleadstoshiftingofshaftsbetweentheforcemachineandthe worm shaft. It is recommended to flange the force machines to the attachable gearbox or use jointed shafts. Size D lo l2 40 20;22 75 30.35 50 25;30 122 54 63 30;35 127 52 80 40;45 156 60 Dimensions in mm Following a longer period of use, attachable gearboxes can be dif- ficult to pull off (due to weather-related or ambient influences and frictional corrosion). To make this process easier, we recommend the designation of a drill hole in the shaft end of the work machine prior to assembly (see illustration above). Through this drill hole, if necessary (following the connection of an injector or a pump), one should be able to apply rust remover to the wheel-body centre position. This requires the crosswise drill hole to open out into the area of the inside thread of the hollow shaft. To avoid tribo-corrosion, it is recommended to treat the work-machine shaft with a MoS2 surface-protector. Size D (HW) D2 ±0.1 l l0 100.1 50 60 - 65 218 188 125.1 60 70 - 80 250 220 160.1 70 80 - - 270 245 Dimensions in mm Mounting and assembly of attachable gearbox/gearbox motors 2 0 ~ 10 l l 0,5 D H7 k6...h8 connecting shaft for driven machine torque converter bearing driven machine spline for circlip in accordance with DIN 472 Installation guidelines Size S 40.1 – 160.1 ~ 10 l l8 l8 0,5 D H7 k6...h8 ~ l/3 D H7 k6...h8 D2 D +0,1 +0,05 D +0,1 +0,05 D2 connecting shaft for driven machine torque converter bearing driven machine