What is the torque of the slewing bearing?

There is no specific value for the torque of the slewing bearing. The torque of the slewing bearing is related to factors such as bolt specifications, mounting hole diameter, bolt strength grade, and the yield strength limit of the bolt material.

The pretightening torque or force of the slewing bearing is a function of bolt specifications, mounting hole diameter, bolt strength grade, yield strength limit of the bolt material and other factors. It can be calculated or obtained by looking up a table.

How to calculate the slewing bearing torque?

The torque of the slewing bearing depends on many factors, including the torque, rotation speed, axial load of the supporting host, etc. When calculating, we need to consider the following aspects:

- Load on the machine

- rotational mass

- Distance to axis of rotation

- Speed and acceleration

- Torque resistance

We need to distinguish between two kinds of moments:

- Starting rotation torque: Cd=Crv+Crc

- Acceleration rotation torque: Cg=Crv+Crc+Ca

Among them, Crv represents the unloaded bearing friction torque.

The torque calculation formula of the slewing bearing is: M=uPD/2 (p bearing load D bearing nominal diameter).

Among them, M is the torque, P is the force carried, u is the friction coefficient, D is the nominal diameter of the bearing, and p is the bearing load.

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