Stober Drives has added two smaller-sized gearheads, the PHQ4 and PHQ5, to its Servo-Fit PHQ gear unit line. This addition expands the series to seven case sizes, ranging from PHQ4 to PHQ11. The recently added PHQ4 and PHQ5 are available in single- and double-stage models, with ratios ranging from 5.5:1 to 55:1, and are capable of 430 Nm of acceleration torque. The PHQ7 thru PHQ11 are available in double- and triple-stage models, with ratios ranging from 22:1 up to 600:1, and up to 22,000 Nm of acceleration torque. All units use a high-torque, four-planet design, which allows torque to be distributed over four planet gears instead of three, resulting in an increase in output torque and torsional rigidity. Suitable for applications requiring low backlash, the PHQ is well-suited for robotics, general automation, food packaging, injection moulding for plastics, and tube-bending industries.
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