Claimed to operate both cog and hysteresis free, the model LA15-16-020A is a two-wire, non-commutated direct drive linear voice coil servo actuator. With a diameter of 1.5" and measuring 1.56" long, the device has a 0.4" stroke, a continuous force rated at 2.6 lb. and a 10-s force of 7.6 lb. The LA15-16-024A is a 0.25" stroke actuator with a continuous force rating of 5.5 lb. And a 10 second force of 20 lb.