A geared electric motor is a drive unit in which an electric motor works together with a gearbox (reducer). The gearbox lowers the motor speed and raises the output torque in the same ratio. Geared motors drive machines that need low speed and high torque, such as conveyors, mixers, screw conveyors, elevators and rotary drums.

HEM Motor gearbox types

The motor side

Geared drives mostly use 4-pole (≈1500 rpm) or 6-pole (≈1000 rpm) three-phase induction motors. The motor is usually connected to the gearbox with a B5 or B14 flange. For suitable motor options see our electric motors for gearboxes page. The motors are IP55, class F insulated and suitable for inverter speed control.

Information needed for the right selection

  • Output speed: the machine's shaft speed (rpm). The gear ratio is the motor speed divided by this value.

  • Output torque or power: the general relation is M (Nm) ≈ 9550 × P (kW) / n (rpm). At the same power, torque rises as speed falls.

  • Duty: daily running time, shock loads, starts per hour.

  • Mounting position and shaft: foot / flange, solid / hollow shaft, output direction.

  • Voltage: 230/400 V or 400/690 V; a single-phase motor for small powers on a 220 V supply.

Model-specific values such as ratio, torque and service factor are set by our technical team for your application; do not select them by guesswork.

Get a quote

Send the output speed, motor power, mounting and application via WhatsApp or +90 532 345 49 86, and we will reply with a suitable motor-gearbox combination, price and delivery time. For motor prices see our price page.