Home > Product > Machinery Spare parts > Gear

internal and external gear ring

1. Internal gear ring and Girth gear. 2. Material: 35CrMo, alloy steel,etc. 3. Large module and long life
Product Details:


     Internal Ring Gears provide a compact parallel shaft transmission drive with large speed reduction. Used with a standard spur pinion the ratio is the same as that of two external gears, but the center distance is much smaller. 

     Girth gear ring is the main component of rotary kiln and ball grinding mill which is required to be operated in a long time. These gears are one of the highest cost components in the entire drive assembly. The girth gears have a very big diameter and high precision finish. The girth gears have a high efficiency and its overall life depends upon the proper lubrication and alignment.

Features and advantages

1) Material and precision could be as customer's requirements. We can design as per working conditions and produce according to customer drawings.

2) The high strength steel was used in manufacturing the big gear rings. We also take the optimization for the product against the operation characteristics of the rotary kiln to ensure the stability of the component during the long time operation and extend the service life of the component.

3) YOGIE has rich production capability in steel castings. For the components such as the girth gear ring, we can provide them in large production quantity with short cast period and large amount.

Product name

Girth gear



Heat treatment

Modulation HB=229-269




Lathing, milling,grinding,drilling










According to customer drawing


Plywood case for sea or air delivery 

YOGIE is mainly engaged in the designing and manufacturing of large machinery components and non-standard machinery parts according to customer's request, including shafts, gears, sprockets, mining machinery parts, welding, bearing, casting & forging etc.

Hot Tags: internal and external gear ring, manufacturers, supplier, factory, customized, cheap, price, in stock, for sale
Related Products