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Tower Crane Three Row Roller Slewing Bearing with External Gear low MOQ

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Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.
Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.
  • xzwd
  • 84828000

Production Description

The three row roller slewing bearing has three seat rings,which separate the upper,lower and radial raceways,

it made each row of the roller's load capacity can be specified and can bear different loads simultaneously.

The capacity load is the largest one compare with the other three models.Due to the large size in axial and

radial dimension the solid structure, it is specially suitable for the heavy  duty machinery such as wheeled

excavator,wheeled crane, ship crane,ladle turrets and the heavy duty mobile crane etc.


1. n1 is the numbers of lubricating holes. Oil cup M10×1JB/T7940.1~JB/T7940.

2. The Oil nipple's location can be change according to the user's application.

3. n-φ can change to tapped hole, the diameter of tapped hole is M, and depth is 2M.

4. The tangential tooth force in the form is the max tooth force; the nominal tangential tooth force is 1/2 of the max one.

5. "K" is addendum reduction coefficient.

If any question,please feel free contact us!


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Xuzhou WanDa Slewing Bearing Co.,Ltd.
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Xuzhou WanDa Slewing Bearing Co.,Ltd.
 No.15,Huaxia Road,the 3rd Industrial Park,Tongshan District, Xuzhou, Jiangsu,China.
  +86-516-83309366     +86-516-83303986
  +86-133-37939399   +86-180 2053 7858