heavy duty slewing bearing

Slewing bearings are used in amusement equipment such as Ferris wheels, large pendulums, and swinging flying chairs. Broadly speaking, a slewing bearing is a large bearing that can withstand comprehensive loads and can withstand large axial, radial loads and overturning moments at the same time. The slewing bearing generally has mounting holes, internal gears or external gears, lubricating oil holes and sealing devices, thus enabling the host to be compact in design, easy to guide and easy to maintain.

A crane refers to a multi action lifting machinery that vertically lifts and horizontally transports heavy objects within a certain range. Also known as bridge crane, high-altitude crane, or crane. The slewing bearings used in cranes are mainly heavy-duty slewing bearings, which need to withstand large axial forces and overturning moments. The main function is to support the upper mechanism and control its rotation. The electric motor or reducer drives the small gear to rotate, and the small gear drives the slewing support to rotate, causing the upper mechanism connected to it to rotate accordingly.

The single-row crossed roller slewing bearing is composed of two seat rings. It has a compact structure, light weight, high manufacturing precision, small assembly clearance, and high requirements for installation accuracy. The rollers are arranged in a 1:1 cross and can bear the bearings at the same time. It has axial force, overturning moment and large radial force, and is widely used in lifting, transportation and engineering machinery products.