The R series helical gear motor combines a multi-stage helical gear unit with a standard IEC motor on one common base — the standard choice for belt conveyors, mixers and agitators, hoisting gear and packaging machines where a compact, quiet and efficient drive is required.
Helical gearing keeps each stage above 94% efficient, so the same output power is delivered from a smaller frame with lower energy draw than a worm equivalent. Ratios from 1.3:1 to 289:1 cover most conveyor and mixer duty points in a single unit, and the output torque reaches 18,000 N·m on the larger frames. Where a lower output speed is needed, two-stage combinations extend the range further.
Every unit is supplied as a complete motor-gearbox assembly matched to the duty point: motor power, pole number, ratio and mounting position are checked against your application data before the order is released, and each unit is run-tested before packing. Foot-mounted (B3), flange-mounted (B5 / B14) and shaft-mounted versions are available.
- Frame sizes R17 to R167, 0.12 to 200 kW
- Ratios 1.3:1 – 289:1, output torque up to 18,000 N·m
- IP55, Class F insulation, 380–415 V / 50 Hz; 60 Hz and other voltages on request
- Solid output shaft, foot or flange mounting, torque arm optional
- Options: brake motor, encoder, forced ventilation, backstop for inclined conveyors
Standard frames ship in 25–35 days; special voltages and non-stock frames are quoted with a confirmed lead time before the order is placed. Send us your ratio, output speed and driven load, and we will come back with a size selection and an offer within three working days.
