Product Description Specifications Documentation Motor HW Kit for P7 gearboxes with a first stage of 4:1 and a RS-7nn sized motor (RS-755, RS-775).This kit contains a pinion, 2 screws, and 2 lock washers. This kit does not contain a motor input block. For Motor: RS7-nn (RS-755, RS-775) Pinion: P7 Pinion, First Stage 4:1, 5mm Shaft, RS-7nn Motor Screws: Two M4 x 8 screws Lock Washers: Two M4 Click arrow in center of image to load and interact with it Your browser does not support iframes.