slewing ring for excavator china manufacturer slewing bearing, Internal gear slewing ring

slewing bearing for excavator

The slewing device is composed of a turntable, a slewing bearing and a slewing mechanism. The outer race of the slewing bearing is connected with the turntable by bolts, the inner race with teeth is connected with the underframe by bolts, and rolling bodies are arranged between the inner and outer races. The vertical load, horizontal load and overturning moment of the excavator working device acting on the turntable are transmitted to the underframe through the outer race, rolling element and inner race of the slewing bearing. The housing of the slewing mechanism is fixed on the turntable, and a pinion gear is used to mesh with the ring gear on the inner race of the slewing bearing. The pinion can rotate on its own axis or revolve around the centerline of the turntable. When the turning mechanism is working, the turntable will rotate relative to the chassis.

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The Fenghe slewing ring has a strong reputation for civilian or military applications. Our precision is obtained by a specific process of grinding. Our design office proposes specific solutions for all types of environments. Capacity, low torque, stiffness and high rotating speed are our main characteristics.

The Fenghe slewing ring permits the bogie orientation and the carriage articulation. The stress spectrum applied to these slewing rings is very specific. Our know-how answers perfectly the protection from contaminants (salt, sand, rain and mud). We can also integrate special braking devices. The Fenghe slewing rings transport millions of people all around the world with train, trams and metro. We also supply slewing rings for the rotation of the truck’s wheels.