Set of 4 roll pins. We often use these with our #25 sprockets to mount them to the motor shaft.
Use these roll pins to fix sprockets to a shaft and keep them locked in place.
This is powerful wheelchair motor. They make great heavy-duty robot motors. 250W 75RPM motors with 17mm keyed shaft output. They are sold individually and have an electric brake mounted on the back.
This is an Enclosed 6-wheel drive robot. Ideally suited for Autonomous Robot Development! It uses six powerful wheelchair motors and the inside robot cavity has plenty of room for electronics.