The FingerTech Sumo Wheel Hub 3mm is a replacement part designed to secure Sumo Tires to motor shafts of varying diameters. This innovative hub allows for seamless transitions between robots with different motor shaft sizes, eliminating the need for a new set of wheels. Constructed from 6061 Aluminum and finished with an anodized gold-yellow coating, the hub features six 4-40 threaded holes evenly distributed on a 0.75-inch diameter circle. Available bore sizes include 3mm (0.118in), 4mm (0.157in), 6mm (0.236in), and 12.7mm (0.50in). The hub is lightweight, with a weight of 6.0 grams (0.21 oz) for the 3mm bore. Each package includes one Sumo Hub in the selected bore diameter, three 4-40 x 0.375-inch screws, and one 6-32 steel setscrew, with two setscrews provided for the 0.50-inch bore with keyway.
