SMC 11-CDRA1FS50-180C-A53L MSRP: Now: $463.75 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... 11-CDRA1FS50-180C-A53L