The rotary kiln, ball mill, and other equipment's major transmission part is the huge Girth Gear. The girth gear is one of the components that frequently has to be updated since the rotary kiln and the ball mill are significant pieces of machinery.
The wear of tooth surfaces is accelerated because of the inadequate lubrication conditions in use, the demanding working environment, and the combination of dust, sand, and other contaminants in the lubricating oil or grease.
The rotary kiln gear ring's large modulus design life is typically 10 to 15 years, although the majority of the gear ring life is only 8 to 10 years. Particularly for dry and semi-dry cement kilns, the pinions have a shorter lifespan of 3 to 5 years and see rapid wear. Chaeng uses a gear surface quenching technique that greatly lengthens the service life and enhances the hardness of the tooth surface.
When surface quenching, remember to consider:
1. It is not advisable to remove the ring gear from the quenching; otherwise, the gears will be distorted upon reinstallation and the contact will be poor;
2. maintain constant water, oxygen, and acetylene pressure during operation;
3. The movement speed ought to be acceptable. Too little movement will cause the tooth surface to burn and harden.
4. In order to prevent the flame from being put out, the water spray's water pressure shouldn't be too high;
Do you have any specific questions about the Large Dia Girth Gear? Contact Yogie! Our sales engineers will work with you from start to finish to ensure that your project is completed to your requirements.
Also, Yogie is a professional manufacturer for Mining equipment, CNC Machine tools, and Machinery parts for over 20years.







