Product Description
ODM our point contact ball Slewing Ring with External Gear for Truck Mounted Crane

A slewing bearing or slewing ring is a rotational rolling-element bearing or plain bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder,or the wind-facing platform of a horizontal-axis windmill. (To "slew" means to turn without change of

A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It is mainly used for lifting heavy things and transporting them to other places. The device uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of a human. Cranes are commonly employed in the transport industry for the loading and unloading of freight, in the construction industry for the movement of materials, and in the manufacturing industry for the assembling of heavy equipment.

In truck crane, slewing ring bearing serves as a joint between the upper structure and the undercarriage, providing a means of 360-degree rotation.

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