Door Opener Worm Gear

The sliding coefficient of the tooth root of the door opener worm wheel cast steel bevel gear is greater than that of the tooth top, and the sliding coefficient of the small gear tooth root is greater than that of the large gear tooth root. In order to make the tooth root wear of the large and small reduction gears close Even, the pinion gear should be made of harder material, and its hardness should be dozens of HB higher than that of the big gear in the heat treatment. The nylon door opener gear can also be heated and surface quenched along the tooth groove by high-frequency induction to increase its abrasion resistance. In the initial work after replacing the new gear, generally only pay attention to whether the work and sound of each part are normal. If it is basically normal, it will be put into use. The running-in and no-load tests are not sufficient, and the intention of the gear running-in cannot be achieved.