The Motion 85237/85238 Power Drive Actuator is fitted with a .750 diameter Acme drive screw with stop collars at both ends of stroke.

Generally the 85237/85238 series is recommended for loads up to 500 lbs.; however this can be extended in certain applications. The 85237 system uses translating tube for mounting, while the 85238 is an open screw type system where attachment is made directly to the nut.