Larger Girth Gear is an important transmission part of rotary kiln and ball mill equipment, suitable for mining, cement, mining and other industries, installed in various types of rotary kiln, rotary dryer and ball mill. As an important transmission component of rotary kiln operation, its quality directly affects the smoothness and stability of the transmission system and the operating rate of rotary kiln, so the quality requirements of the big tooth ring are relatively high in actual production.

CHAENG (Xinxiang Great Wall) has a wealth of large-scale rotary kiln and mill production experience, can provide customers with various types of large girth gear production and processing, the use of alloy steel material 42CrMo4 normalizing hardness HB210-240, improve the contact strength and wear resistance of large girth gear. In addition, the tooth surface of the big girth gear is strengthened by cold hardening to improve the hardness and wear resistance of the tooth surface. At the same time, the large hobbing machine with diameter of 5m and 8m is used to process the girth gear, which greatly improves the meshing accuracy of the gear pair, increases the meshing contact surface of the gear pair, and improves the service life.