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The Stability Issues of the Turntable Bearing

For equipment with the turntable bearing installed, performance is a focus of user attention, often requiring high precision. In equipment applications, industrial turntable bearings exhibit stable performance that can meet the special job requirements of construction equipment, including handling comprehensive loads such as large axial loads, radial loads, and overturning moments. Let's explore the stability of the turntable bearing below.


In the accessory design of turntable bearing, the rolling elements are usually separated by isolating blocks. This structure can maintain smooth movement and is therefore widely used. Special applications require the use of special ball or roller isolating blocks. Bearings installed on horizontal shafts or continuously rotating generators and applications where positioning and reliability require high demands can use strip-shaped composite support structures to ensure the rolling elements are in the correct circular position.

The purpose of using a support structure for the turntable bearing is clear

To improve bearing rotation performance and efficiency, consolidate bearing stability and reliability, increase bearing design and service life, and solve force uniformity and bearing structural problems under complex working conditions, which include overall support structures, segmented support structures, copper support structures, steel support structures, polyurethane support structures, nylon support structures, polytetrafluoroethylene support structures, PA support structures, and composite material support structures.

Process design of the turntable bearing

The stability and reliability of precision turntable bearing are the two core indicators to consider when selecting and designing turntable bearings. The main process design considerations include: structure, material, quenching hardness and tempering hardness, the height of the bearing's rolling elements and the collar, the wall thickness ratio, machining accuracy, the material, structure, and type of the support structure, such as overall support structures which can significantly improve bearing rotation performance and life, lubrication system and sealing system, installation and debugging level, daily maintenance frequency, and mature design application.

To ensure the stability of construction equipment, the design of the turntable bearing pays more attention to the rationality of structural configuration

However, in many cases, gear teeth can be machined on the inner or outer ring of the bearing to simplify the structure of the driving system. To avoid problems, when determining the structure of the drive system, seek the assistance of relevant personnel in the gear industry.

The above is the exploration of the stability of turntable bearing and the pursuit of higher performance in accessory design. However, improper installation, use, or maintenance in actual applications can lead to various problems. For example, excessive shaking may occur during the use of turntable bearings. Common causes include loose installation bolts causing shaking during operation, insufficient rigidity of the steel structure supporting the turntable bearing, and elastic deformation generated during loading, which causes overall shaking of the turntable bearing. To ensure the normal use of turntable bearings, if there is shaking during operation, stop and check the cause in a timely manner to prevent greater damage caused by long-term shaking.

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