Overview Similar Products –> Product Description D532 3.3″ Diameter General Purpose Motor 1/30 – 1/80 HP 1/30 – 1/80 HP 115 Volts 1.4 – .8 Amps 1500 RPM CW Rotation 5/16″ x 1-1/2″ Shaft Diameter Open Ventilation Sleeve Bearing 2-3/4 “A” Dimension Air Over Replacement for 7163-4719, “A” dimension on the D532 is slightly longer and the shaft length is shorter. Cross Reference: 3M549 Product Videos Custom Field Product Reviews