crane slewing bearing

In the production process of slewing ring bearing, whole process inspection is implemented strictly to ensure that each set of products are qualified. For high-precision products, precise grinding is used to effectively control the parameters of ring ellipse, wall thickness and flatness, so as to ensure that the precision of finished products meets the requirements of standards or customer drawings.

The double-row ball gearless slewing bearing is an important mechanical component. Its design feature is that it has two rows of steel balls, which can withstand large axial forces and tipping moments. This product is particularly suitable for medium and large diameter tower cranes, truck cranes and other loading and unloading machinery.

We provide customizable special-shaped slewing bearings, which are tailored to meet the specific needs of different mechanical equipment. Our special-shaped slewing bearings have the characteristics of high precision, high load capacity and low friction coefficient, ensuring the stable operation of the equipment in complex environments.

1.The three row roller type rotary bearing has three seat rings, with the upper, lower, and radial raceways separated, and the load of each row of rollers can be accurately determined 2.Capable of withstanding various loads simultaneously, with large axial and radial dimensions and a sturdy structure

The slewing bearing of loading and unloading machinery, especially the double-row ball slewing bearing, is a high-precision and high-load-bearing mechanical component. This product has a unique structural design and excellent performance characteristics, and plays an indispensable role in various types of loading and unloading machinery.

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.

The single-row four-point contact ball slewing bearing is composed of two seat rings. It has a compact structure and light weight. The steel balls are in four-point contact with the arc raceway and can withstand axial force, radial force and overturning moment at the same time. Construction machinery such as rotary conveyors, welding operators, small and medium-sized cranes and excavators can all be used.

Single row four point contact ball slewing bearing 01 series is a standard model series in China. It is made of two seat rings. The balls and the raceway are with four points contact, via which the axial force, radial force and resultant moment is born simultaneously. Outer Diameter is from 280mm to 4726mm. Most models slewing ring are with ready stock or semi-finished material stock, which can deliver out within 15 days. Standard material we adopt is 50Mn and 42CrMo. Other customized material is also acceptable. We support models selection based on your application; teeth quenching and grinding; customized surface treatment like Blackening, phosphating, galvanizing, sandblasting and etc. In the production process of slewing ring bearing, whole process inspection is implemented strictly to ensure that each set of products are qualified. For high-precision products, precise grinding is used to effectively control the parameters of ring ellipse, wall thickness and flatness, so as to ensure that the precision of finished products meets the requirements of standards or customer drawings. This series models are with advantage of compact design, flexible rotating and light weight. It is widely used on rotary conveyor, welding arm and positioner, light/medium duty cranes, excavators and other engineering machines. Please feel free to tell us the application you use and we can help you choose the proper model and offer you a professional solution as soon as possible.