This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/6jDqSrGOtzi
This is a Hub designed for the Windows Motor used in FRC that has the plastic 6 sided Gear. This particular hub fits nicely and snug onto the motor and has the 6 screw holes on the outside designed for attaching to the belt driven pulleys.
This should attach directly to the Motor, and can be used for multiple Applications and attachment after. You are welcome to use the Hub for your teams, and modify the part as needed. This part was created for FRC (First Robotics Competition) Team 4480 - UC-Botics