The smallest and lightest direct drive hub motor will depend on the specific manufacturer and model. However, direct drive hub motors are generally heavier and bulkier than geared motors due to their simpler design. The size and weight will also depend on the power output and torque required for the particular application.
Connect the hub motor to the controller using appropriate wires and connectors. Follow the manufacturer's instructions and ensure proper insulation and grounding for safety.
To test a hub motor, you can check its resistance with a multimeter, measure its voltage output with a voltmeter, and run a diagnostic test using an electric vehicle controller to ensure proper functionality and performance.
Choosing between direct drive hub motors and geared motors depends on specific requirements. Direct drive motors offer better efficiency and durability, while geared motors offer better torque and hill-climbing ability. The decision depends on factors such as terrain, load capacity, and desired speed.
