Two timing motors can be mounted in tandem to form reversing, double-power or two-speed drive packages. The two-speed flexibility is achieved by mounting two different-speed motors on the same shaft; reversing is by employing clockwise and counter-clockwise motors. Reducers will give a range of timing speeds from one revolution a week to 600 rpm. Gear trains are generally limited to 30 oz-in running torque and 90 oz-in static torque. The motors require 24, 110, or 220 VAC, 50/60 HZ.