This is optional pulley and belt kit for the DART linear actuators. This kit speeds up the linear output speed of the DART, compared with the standard pulley and belt kit. This kit has a ratio of 2:1, as the standard ratio for the DART is 2.5:1. This is used with either the 12" Actuator (am-3072a) or the 6" Actuator (am-3076a) to provide 162 lbf at 6.6 inches/sec. Feedback from the actuator can be acquired using potentiometer included on the DART or the optional DART Sensor Kit (am-3077a.) Included Items: