PHQ gear units

The new sizes of the PHQ series include the PHQ4 and PHQ5, which expand the offering to seven case sizes ranging from PHQ4 to PHQ11. The PHQ4 and PHQ5 are available in single and double stage, with ratios ranging from 5.5:1 to 55:1. These gearheads are capable of 430 Nm of acceleration torque. The PHQ7 thru PHQ11 are available in double and triple stage, with ratios ranging from 22:1 up to 600:1, and up to 22,000 Nm of acceleration torque.

While smaller sizes are now available, all PHQ units utilize a high torque, four-planet design. This design allows torque to be distributed over four planet gears instead of three. This results in an increase in output torque and torsional rigidity.

"This design enables extreme requirements to be met efficiently and effectively," says Adam Mellenkamp, product manager at STOBER Drives. "Applications in machine tool manufacturing, material handling, robotics sectors, and many other areas can use PHQ."