H4-VV-27-D torque Nm NmTorsionally rigid couplings Our Helical speed reducers H4

Flender/Flender Gear Units/Helical speed reducers H4

gh which the gears are mounted and it is closed by cover. In order to increase the versa tility of th is gearbox, an additional fla nge is created on the front surfaces of the housing (Fig. . Fig. 1. The characteristic solution of single -stage gear reducer with both horizontal and vertical arrangement of the shafts (Rossi solution) [1]. ) ) Fig. 1. The characteristic solution of single -stage gear reducer with vertical shafts arrangement (Rossi solution) : ) foot - mounted and ) flange -mounted [1]. Single -stage universal gear reducers with vertical shaft arrangement are today more common in practice. They are produced with different way of connecting: foot-mounted gearbox (Fig. 1a), flange -mounted gearbox (Fig. 1b) and foot and flange -mounted gearbox (Fig. . Gear reducers with vertical shaft arrangement have simpler machining processing, but assembling is bit complicated. Fig. 1. The characteristic solution of single -stage gear reducer with vertical shafts arrangement foot and flange -mounted way (STM TEAM solution) [1]. Some manufacturers that produce gear reducers in small series, practice using an univ ersal housing with feet or flange connected by screws. The housings of single -stage gear reducers with free shaft arrangement (but also all other arrangements) are manufactured as rounded (Fig. , but also as squared (Fig. . When they are assembled wi th hollow shaft, they are called shaft -mounted gear units. They are also complicated for manufacturing since they need to be machined in two large contact areas and then to be connected, centred and further machined. They are simple for axial mounting an almost all assembly is done outside the gearbox housing. Fig. 1. The characteristic solution of single -stage gear reducer with free shaft arrangement ( Leroy Somer solution ) [1]. Fig. 1 4. The characteristic solution of single -stage gear reducer with free shaft arrangement ( Dodg