Planetary gear

With the ability to continuously transmit torques up to 160 Nm, the planetary gears in this range are suitable for the recently introduced BG75 brushless DC motor.

These gearboxes can be combined with the GR63, GR80 and BG65 DC motors. They fit into the Dunkermotoren modular concept, using relatively few standardised components, providing many drive solutions.

Available in one-, two- or three-stage versions, there is a total of 28 different reduction ratios between 1:4 and 1:710.5. The whole-number reduction ratios and the precision of these gearboxes offer advantages when constructing positioning drives.

Their high efficiency contributes to low energy consumption. A further advantage in automation systems using numerous decentralised drives is the compact size of the PLG75 planetary gear. For example, with a two-stage gearbox, reduction ratios down to 1:101.5 are possible, where other gearboxes would need three stages.

For automation systems, such as complex assembly or packing installations, the quiet running of these gearboxes, due to the use of helical plastic gears in the first stage, is an additional point in their favour.

Hardened internal gears in the second and third stages and ball bearings with shields on both sides and lubricated for life ensure a long working life and maintenance-free operation. The output shaft can cope with radial and axial applied forces of up to 1000 N. For use under severe conditions, these gearboxes are protected against dust, dirt and liquids to class IP52. Between the motor and gearbox housings, an O-ring largely protects against the penetration of dust or liquids.