131.32.900 External Gear Slewing Bearing Swing Ring Three Row Roller Type Structure

Xuzhou Wanda slewing bearings are a cost-effective design and performance enhancement option for rotary devices carrying heavy loads.

Slewing bearing is a kind of special bearing.Generally,slewing bearing is equipped with installation holes,lubricating holes and sealing devices in order to meet various requirements of main equipments in various operation conditions. Besides, slewing bearing is featured in compact in structure, convenient to guide and rotate,easy for installations and maintenance.

Comprised of an inner ring, outer ring and rolling elements (balls or cylindrical rollers),the bearings effectively absorb and support axial and radial forces and the resulting tilting moments.

It can be used for slewing conveyer, welding manipulator, light & medium duty crane, excavator, and other construction machinery.

The single row crossed roller bearing is composed of two seat rings, which design in compact structure and light weight, the clearance is small when assembly, so need high precision. The roller is 1:1 cross arranged, it can bear the axial force, tilting moment and relatively large radial force. It is widely used for hoisting, transportation, construction machinery, and the military products.

Application:

Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments and other large rotary device.

Three types of this kind of slewing bearing:

A. Without gear bearing
B. External gear bearing

C. Internal gear bearing

Slewing bearing Drawing number composition:

1Slewing Bearing Heat Treatment

Heat Gear

Xuzhou Wanda Slewing Bearing are in the majority of cases supplied with spur tooth. Stub teeth also is ok.There are two kinds of tooth hardening. They are normalizing and tempering, According to the different applications, there are two ways of quenching. They're whole tooth quenching and single-tooth quenching. Single-tooth quenching can be divided into tooth surface & root quenching and tooth surface quenching.

2The Calculation of Slewing Bearing.

Static load capacity

The determined loads must be multiplied with a factor fstat allocated to the application. The product Fa' or Mk' must be below the static critical load curve of the selected bearing.

With regard to radial loads in load combinations

Fa = axial load
Fr = radial load
Mr = tilting moment

3 Protection Against Corrosion

We make  Protection Against Corrosion on surface of bearing,and make couple of packing paper.

4Customize.

Yes,we have professional technical terms.

5.Warranty:
General 1 year .

6. Reliable reputation.

We can send you a reference list.