The robust gear housing and all power-transmitting cast parts are made of spheroidal graphite cast iron. In accordance with the requirements of switch and reversing operation, the toothed wheels and shafts are dimensioned amply and, relating to the starting torque, have a fatigue-resistant design.

The lubrication of the toothed wheels and high speed shafts is carried out by means of splash lubrication. The roller bearings of the drive shaft are provided with a lifetime grease lubrication.

Our gear motors are available with gear reductions of 1.73 to 7.57 (single stage), 8.14 to 35.69 (two stages) or 28.5 to 125 (three stages, straight bevel gear pair).

With our gear motors, speeds from 20 to 580 rpm and torques up to a maximum of 20.000 Nm can be achieved. The drives can be supplied in Structural Shapes B3 (base design), B5 (flange design) or H3 (slip-on gear mechanism with hollow shaft). Other structural shapes, e. g. for vertical assembly, are available on request.

Single-stage roller table gear

Two-stage roller table gear

AC straight bevel gear pair

Thermal winding protection

The best protection against harmful overheating of the winding is achieved by controlling the winding temperature directly. For this purpose, alternatively three thermal contracts, PTC-resistor temperature probes or Pt multiplier resistors each can be installed at the end windings of the three winding branches. This can be carried out on request and will be charged additionally.

Tachometers, pulse generators

Should the recording of the current speed be required during actuation, a tachometer or pulse generator can be mounted on the second shaft end on request.

Brakes

Also on request, roller table drives can be supplied as braking motors and drum brakes or spring pressure disk brakes are used.