How can we know about the turntable bearing?

The turntable bearing is widely used. Construction machinery is the first and most widely used place of turntable bearing, such as earth moving machinery, excavator, disintegrator, stacker reclaimer, grader, roller, dynamic compactor, rock drilling machinery, roadheader, etc.

• What are the characteristics of the materials used in small and medium turntable bearings?

• What are the characteristics of turntable bearing?

• What are the causes and countermeasures of the noise related to the main engine produced by the turntable bearing?

What are the characteristics of the materials used in small and medium turntable bearings?

Small and medium-sized turntable bearing forgings all use round or square bars as blanks. The grain structure and mechanical properties of the bar are uniform and good, the shape and size are accurate, and the surface quality is good, which is convenient for mass production. As long as the heating temperature and deformation conditions are reasonably controlled, forgings with excellent performance can be forged without large forging deformation. Ingots are only used for large forgings. The ingot is an as-cast structure with large columnar crystals and a loose center. Therefore, through large plastic deformation, the columnar crystals must be broken into fine grains, and the loose compaction can be obtained in order to obtain excellent metal structure and mechanical properties.

What are the characteristics of turntable bearing?

The slewing ring is a specially constructed bearing that can simultaneously accept large axial load, radial load and overturning moment and other comprehensive loads. The size of the turntable bearing is large, and its diameter is usually 0.4-10 meters, and some are as large as 40 meters in diameter. In terms of technology, turntable bearings are very different from rolling bearings. According to different structural characteristics, turntable bearings can be distinguished to meet the needs of the task host under various load conditions.

What are the causes and countermeasures of the noise related to the main engine produced by the turntable bearing?

This kind of noise is not simply caused by the bearing, so it is ineffective to find the cause from the bearing alone. The main engine should be paid attention to, and the performance of the main engine should be improved if necessary. Now mainly describe the common buzzing sound and frame resonance sound in the motor.

1. The buzzing sound of the motor and its countermeasures. The axial vibration of the motor shaft will cause a large high-frequency noise - buzzing sound, the frequency of which is the same as the axial vibration frequency, which can be constant or variable. The method to prevent buzzing is the same as the method to prevent axial vibration.

2. Bearing frame resonance sound and its countermeasures. When the axial natural vibration of the outer ring mass system causes the axial bending natural vibration of the bearing frame, a kind of noise called resonance sound will be generated. The method of increasing the preload can increase the axial natural frequency of the outer ring mass system, destroy the resonance condition and reduce the noise.

LYXQL Slewing Bearing Co., Ltd. founded has focused on the production and development of turntable bearings for more than ten years, and they have always put the needs of customers as their top priority. Here, you can choose the turntable bearing that suits you.