These black plastic wheels press-fit onto the 3mm D shafts of our micro metal gearmotors, mini metal gearmotors, and mini plastic gearmotors with 3mm D-shaft to make a nice drive solution for small robots. The wheels have silicone tires and measure 90 mm (3.54") in diameter. Six 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, and 6mm shafts. The slots in the six spokes allow additional accessories to be mounted to the wheel (e.g decorations or parts of an encoder system). The left picture below shows the wheel mounted to a 37D mm metal gearmotor with a universal mounting hub for 6mm shafts. Black Pololu 90×10mm wheel on a Pololu 37D mm metal gearmotor. Black Pololu 90×10mm 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 90×10mm without tire. Pololu universal hub for 6mm shaft mounted to Pololu 90×10mm wheel.
