135 LB Power Feed X Axis Fits bridgetport Acer Mills X Axis Power Feeder Power feed X axis ; X traverse Feed rate: 0.4 to 37.4 IPM ; Variable speed: 0-140 RPM ; Speed: 0-200 RPM ; Horsepower: 1-3HP Torque: 135in-lb peak / 100in-lb continuous ; 135lbs of torque ; Fits all Bridgeport style machine For 5/8" shaft with keyway ; Increase milling efficiency ; No more gear charge hassles Quantity: 1;Overall dimension: 5''L x 8/38''W x 11-1/4''H ; Weight: 9.85lbs (just machine)