What is the meaning of turntable bearings?

The turntable bearing is a kind of large bearing with special structure, which can carry large axial loads, radial loads and tilting moments as well as other comprehensive loads at the same time.

• What are the basic structures of turntable bearings?

• What are the characteristics of the mounting plane of the turntable bearing?

• What is the function of the turntable bearing?

What are the basic structures of turntable bearings?

A large roller bearing usually consists of four main components: inner ring, outer ring, rolling element and spacer blocks. Since the core component adopts a large roller bearing, it can absorb axial force and radial force at the same time. There are many forms, but the structure and composition are basically the same.

The top of the turntable bearing mainly comprises 1. Outer ring (with or without teeth) 2. Sealing tape 3. Rolling elements (ball or roller)4. Oil fillers

The main parts of the turntable bearing are: 1. Plug 2. Cone pin 3. Inner ring (with or without teeth) 4. Spacer or cage 5. Mounting hole (wire hole or smooth hole).

What are the characteristics of the mounting plane of the turntable bearing?

The mounting surface of the turntable bearing should be smooth and clean and all excess substances such as paint residue, welding beads, burrs, etc. should be removed. When cleaning, make sure that no solvent penetrates the interior of the large roller bearing and do not use solvents that damage the sealing material. Mounting surfaces should be dry and free of lubricants before assembly. Measures should be taken to protect workers and the environment.

The roughness of the mounting surface of the turntable bearing support is not greater than Ra.12.5, 6.3 μm, and the error of the flatness of the mounting surface must be checked for circumferential and radial errors. The circumferential flatness tolerance value has a corresponding guideline range with the diameter of the large roller bearing raceway.

In order to avoid local overloading of the large roller bearing due to unevenness of the mounting plane or deformation of the beam, the circumferential flatness error within a 180-degree range must have only one shaft up and down and the change is gentle.

What is the function of the turntable bearing?

It is a kind of large bearing with special structure, which can carry large axial loads, radial loads, tilting moments and other comprehensive loads at the same time, and several functions such as support, rotation, transmission, fixation, etc. integrated. Generally, the platter bearing itself is equipped with mounting holes, lubricating oil and sealing devices, which can meet the different requirements of different hosts operating under different working conditions. On the other hand, the rotary table bearing itself has the characteristics of compact structure, convenient guide rotation, easy installation and easy maintenance. It is widely used in large rotating equipment such as lifting and transportation machinery, mining machinery, construction machinery, port machinery, wind turbines, medical equipment, radar and rocket launchers.

This is all about the turntable bearing. If you want more information about turntable bearing, please contact LYXQL Slewing Bearing Co., Ltd. and they will be happy to answer your question!