1. Worm wheel and worm gear are sold separately, if you need to be used together, need to be photographed separately.
2. Module represents the model, worm wheel and worm gear can be used together only under the same module.
3. Worm wheel and worm gear according to the type and number of teeth, the hole is divided into two types of round holes and keyway holes.
4. No keyway size in the option default is a round hole without keyway, attention to differentiate when purchasing.
5. Worm gear in the production and transportation inevitably lead to bumps and scratches, etc., mind the pro-philosophy of careful shooting Oh.