Four-point contact ball slewing bearing
The slewing bearing (internal tooth type) has a compact structure, light weight, and high manufacturing precision; the product assembly gap is small and requires high installation accuracy; the rollers are arranged in a 1:1 cross; it can withstand axial force, overturning moment and large radial force at the same time; used in construction robots, automation, medical industry, precision instruments, etc.
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Product Description

Slewing bearings (also called slewing bearings) are widely used in various mechanical equipment. The following are some typical application cases:

construction machinery

1.Tower crane: The slewing bearing supports the driving platform and hook to achieve horizontal rotation.

2.Construction machinery: such as mixing stations, scrapers, etc., to ensure smooth and reliable rotation of the machinery.

wind power

1.Blade installation: used for the rotation support of the fan main shaft.

2.Rotor connection: supports the rotation of the wind wheel and transmits torque.

Metallurgy and Mining

1.Converters and rolling mills: carry huge loads, realize rotation operations, and improve production efficiency.

2.Heavy machinery such as excavators: supports the movement of the rotating arm and working end.

Transportation

1.Railway vehicles: such as the bogie part of an electrified train, which realizes wheel steering.

2.Port machinery: such as terminal cranes and unloading machinery, for angle adjustment and rotation.

 

Note

1,n1is the number of lubricating oil holes. Steel ball diameter<middle25oil cupM8x1(JB/T7940.1~JB/T7940.2);Steel ball diameter>middle25oil cupM10x1(JB/T7940.1~JB/T7940.2). The user can specify the oil hole location according to the application.

2,nMedium can be changed to thread diameter of threaded holeM, thread depth2M3, The gear circumferential force in the table is the maximum circumferential force, and the rated circumferential force is taken as1/24, "K” is the topping coefficient.

3. The specifications in this sample are standard products, and the inner and outer diameters are all within free tolerance. If there are coordination requirements between the host machine and the slewing bearing, please specify it in the contract or contract attachment.(Such as technical agreement)Indicate the fit size and accuracy.

4, The table is listed as our company's regular products. If you have other special requirements, please contact our company.