Strong Reliable Inner Guide Wheel

The bearing of the inner guide wheel is installed at the outside of the wheel, which has reduced the contact between the bearing and slag to guarantee the long service life of the bearing. In addition, the external bearing design is convenient for oil filling and maintenance. The sealing method is water seal, oil seal, and grease cavity combined sealing, which can ensure that the slag will not enter the bearing cavity. The outer rim has groove, and the chain will move in the groove to ensure there is no falling of chain during operation.