Add to Cart SMC CRA1FSU50-90C-X11 SMC MSRP: Now: $372.40 Was: The CRA1 rack and amp; pinion rotary actuator offers very high torque-to-size and accurate positioning. Bore sizes are 30, 50, 63, 80 and 100mm. Units may be ordered auto-switch capable and with... CRA1FSU50-90C-X11