These black plastic wheels press-fit onto the 3mm D shafts of our mini metal gearmotors, micro metal gearmotors, and 120:1 mini plastic gearmotor 90-degree 3mm D-shaft output to make a nice drive solution for small robots. The wheels have silicone tires and measure 60 mm (2.36") in diameter. Two additional mounting holes for 4-40 screws make it possible to use the wheel with our universal mounting hub for 3mm shafts, 4mm shafts, 5mm shafts. The slots in the five spokes allow additional accessories to be mounted to the wheel (e.g decorations or parts of an encoder system). The left picture below shows this wheel mounted to a 20D mm metal gearmotor with a universal mounting hub for 4mm shafts. The right picture below shows a slightly larger version of this wheel mounted to a micro metal gearmotor. White Pololu 60×8mm wheel on a Pololu 20D mm metal gearmotor. Black Pololu 70×8mm wheel on a Pololu micro metal gearmotor. Pololu wheels with 90, 80, 70, 60, and 32mm diameters. Pololu wheels with 90, 80, 70, and 60mm diameters in three colors: blue, red, and yellow. Mechanical drawing of Pololu wheel 60×8mm without tire. Pololu universal hub for 4mm shaft mounted to Pololu 60×8mm wheel.
