Precautions when using slewing bearing

Sleigh bearing is a relatively large mechanical parts, in daily use, there may be heat, and if this situation can not be solved in time, the damage to the bearing is relatively large, then how to correctly solve the heat problem.

Heating reason 1: the bearing size of the slewing support is too large, so the bearing will be relatively tight.

Solution: Provide proper tolerance for bearings, strictly prohibit too tight.

Heating reason two: aluminum three-layer ring sealing ring friction caused by heat.

Solution: Grease should be applied to reduce friction resistance when installing sealing holes and rings.

Heating reason 3: too much grease or too high oil level applied to the slewing bearing.

Solution: The slewing bearing will remove excess grease through the sealing hole.

Heating cause four: improper grease or lubricating oil type leads to lubricant failure.

Solution: re-select the appropriate lubricating oil type.

Heating reason five: low oil level, insufficient grease.

Solution: The oil level on the outside of the shaft diameter should be just below the cage and fill with appropriate grease.

Heating reason six: inner ring and sealing ring friction heat.

Solution: Stop the machine and check the clamping ring screws to ensure that the inner ring is firmly attached to the shaft, that the free end bearing is installed correctly, and that the roller is aligned with the center line of the outer ring.

The above is about the heating causes of the slewing support and the solution, of course, there are many reasons for the overheating of the slewing support, in order to ensure the normal use of the slewing support, when you encounter the phenomenon of slewing support overheating, you can stop in time to check, find out the cause and deal with it, to prevent the service life of the slewing support from shortening.

Slewing bearings are large diameter antifriction bearings used to transmit both axial and radial forces as well as inclined moments. They replace traditional solutions with fixed and floating bearings and kingpin bearings. Typically, this results in bearings with an axial/radial bearing combination with one bearing point. This can significantly simplify the design of the mounting structure and the installation of bearings, thereby reducing the workload and cost.

Slewing bearings are large diameter antifriction bearings used to transmit both axial and radial forces as well as inclined moments. They replace traditional solutions with fixed and floating bearings and kingpin bearings. Typically, this results in bearings with an axial/radial bearing combination with one bearing point. This can significantly simplify the design of the mounting structure and the installation of bearings, thereby reducing the workload and cost.

Attention of slewing bearing type selection

1. Carrying capacity

It is necessary to select a slewing support by comparing the load/or stress associated with the intended application with the characteristics of the known slewing support. Depending on the situation, it can be:

When there is no size requirement, the best slewing bearing suitable for this application will be selected according to the load requirements. When there are dimensional limitations (diameter, module, weight, etc.), the suitability of the slewing bearing under consideration is verified and its life is calculated. The load curve is calculated based on the bearing capacity of the ring, which is the load displayed on the coordinate axis and is a function of:

2. Its geometry,

3. Type of steel used,

Step 4 Heat treatment

5. Type of rolling element, etc

6. Contact parameters of rolling element

Application factors of slewing bearing

In order to recommend a slewing support for a particular purpose, it is necessary to ensure the proper strength of the raceway by comparing the operating load with the capacity of the slewing support selected or to be determined. This comparison can also give you an understanding of the service life of the slewing bearing. However, the latter can only be calculated for working stresses, not for accidental stresses caused by short and irregular overloading or equipment acceptance tests.

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