Creative Motion Control products

Made in the U.S. by Creative Motion Control CPD actuators are completely designed and manufactured by CMC in the United States, including all of the main drive components: CMC Planetary Roller Screws, CMC Grooved Roller Bearings, and CMC Planetary Gearboxes. Maintenance Free Lack of appropriate or adequate lubrication is absolutely the number one failure mode in roller screws and roller screw actuators. Therefore CMC’s first goal in designing our own actuators was to eliminate lubrication issues. Since oil lubrication is the accepted optimal lubrication methodology for roller screw actuation, all CMC actuators are completely oil filled. Using CMC’s unique oil lubrication system, we have eliminated the need for re-lubrication schedules; the CPD Series is maintenance-free for the life of the unit for almost all applications. Custom oils are available for unusual temperature or projects with unusual lubrication challenges.   

Creative Motion Control’s Planetary Roller Screws transform rotary motion into linear movement. The rolling elements consist of threaded rods which enable excellent force density, very high load capacities, and long life. CMC Roller Screws have several advantages over ball screws: Load and Life . Due to the increase in contacts point compared to ball screws, roller screws have two to three times the dynamic load capacity in the same physical space. This translates to 15 to 25 times longer lifespan. In addition, the static load capacities are three times higher than ball screws. Speed and Acceleration Because there are no recycled ball bearings, roller screws can handle two to three times the rotational speeds of ball screws. In addition, the advanced roller design enables much higher acceleration rates as well. Rigidity and Shock Tolerance The increased contact points also enable up to three times the rigidity of a ball screw, and a much higher tolerance to shock loads.

The CMC Grooved Roller Bearing (GRB) difference lies in the patented grooved roller and race designs. In order to improve durability, the new design increases the number of contact points in the same physical space. More contact points means longer life and greater load capacity to match the performance of CMC’s roller screws.