Under normal circumstances, the worm is the driving wheel, the material is the density of the alloy steel, easy to wear; worm wheel for the driven wheel, the material for the bronze.
Worm with bronze as raw material because:
1, bronze lubrication, is conducive to reducing friction.
2, the bronze texture is relatively soft, the general worm material than the worm wheel hard, the worm is the passive wheel, the worm is the driving wheel are generally connected with the motor, the plastic worm in case of failure can not turn the machine, the motor can be soft Soft damage, to protect the motor from being burned out. |
