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.
Note:
1. n1 is the number of lubricating holes.Oil cup M10 x 1JB/T7940.1~JB/T7940.2.The Oil nipple's location
can be changed according to the user's application.
2. n-Φ can be changed to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the form is the maximum tooth force,the nominal tangential tooth force is
1/2 of the max one.
4. "K" is addendum reduction coefficient.





