CHA 50/2/50 Shaft Mounted Speed Reducer (Ø50 mm hollow output shaft)

CHA 50/2/50 shaft mounted speed reducer — Chiaravalli's pendular gear unit, made for belt conveyors: size 50, two-stage, ratios 10:1 to 30:1, hollow output shaft Ø50 mm G7, keyway 14 mm wide (BB), 53.8 mm bore-to-key height (BH). Solid input shaft Ø38 mm, key 10 mm wide (DB), 42 mm shaft-to-key height (DH). GG20 painted cast iron case, ground 21NiCrMo2 gears — high efficiency, low noise, easy mounting. A backstop device can be fitted on request so the conveyor cannot run back on an incline (state the free direction of rotation when ordering). A torque tension arm (M14 rod, length 240–360 mm) is available for this size — see the torque arm sheet.

Supplied without oil. Oil-bath lubrication; fill about 7.3 l of ISO VG 150 to 460 oil by load type and ambient temperature (the catalogue's viscosity table — mineral or synthetic) and set the plugs for your mounting position A, B, C, D, VA or VB (see the mounting-positions sheet). Weight 58 kg.

How to pick from the table: the ratio sets the output speed — at 1400 r/min input, ratio 10:1 gives 140 r/min at the hollow shaft. Choose the row whose output speed and rated torque Mn2 cover your conveyor's needs (with a service factor for the load — see the Selection Guide tab), check that your motor's power does not exceed Pn1 and that the belt or chain pull on the input shaft stays within Rn1. Running a 6-pole or 8-pole motor? Press the 900 or 500 r/min toggle for those figures. Other ratios on request.