Slewing Bearing Technology Improvement and Performance

Slewing Bearing Technology Improvement and Performance Improvement

Sep 01, 2021

Turret bearing of frigate turret

Slewing bearings occupies an important position in the use of equipment in many industries, such as construction machinery, ships, automation, photovoltaics, etc. In order to make the equipment run better, reduce wear and extend its life, the performance of the slewing bearing can be improved from the following processes:

1. Improve the quality of 42CrMo and 50Mn steel, and strictly control the content of chemical composition and the level of non-metallic inclusions, which is an important basis for improving the quality of slewing bearings.

2. In the production process, due to the large machining allowance of the blank, large cutting stress may be generated and quenching deformation may be increased. In order to increase accuracy and reduce deformation, stress relief annealing can be carried out after rough turning.

3. Improve the design of the slewing bearing. The steel ball arc raceway has been widely adopted abroad. The structure is uniformly stressed, directly polished after quenching, without grinding, which can prevent defects such as cracks in the raceway.

4. The large turntable bearing not only requires the surface of the raceway to be wear-resistant, but also has a certain strength. After quenching and tempering, the depth of the hardened layer must be increased as much as possible. The actual test proves that increasing the hardened layer to 3-4mm can strengthen the strength of the raceway.

5. The processing quality of the slewing ring bearing itself is greatly affected by manufacturing accuracy, axial clearance and heat treatment. The element that is easy to ignore here is the effect of heat treatment. Obviously, in order to prevent cracks and depressions on the surface of the raceway, it is necessary that the raceway surface has sufficient hardness, sufficient hardened layer depth and core hardness. The depth of the hardened layer of the raceway should be thickened as the rolling elements increase. The manufacturing accuracy of the slewing bearing is critical to the heat treatment process. Reduce the intermediate frequency quenching speed, try to obtain a larger surface hardness and hardening depth, to prevent quenching cracks on the surface of the raceway. 

A Leading Industrial Bearings Supplier

Why Choose FV Bearings?

FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.

Leading industrial ball bearings with best materials

Accurate response to client’s request

FV Bearings Co.Ltd has rich experiences in bearings manufacturing and processing, the professional bearing engineers can handle your requirements on bearings exactly and output the accurate bearing products.

World’s leading roller bearings manufacturer

FV Bearings is a leading roller bearings manufacturer provides high quality and durable roller bearings for different industries such as automotive, aerospace, machinery, power plants, chemistry industry, agriculture and other fields.

Solutions for special bearings and high end bearings

If you are looking for special bearings and high end bearings, FV bearings can help you to customize any special bearings according to your needs based on advanced bearings manufacturing technology.

Send us an Email for Quote

Start your project and business
with FV Bearings!

Advanced Industrial Bearing Technology

Latest Bearings News & Knowledge

News and knowledge about ball bearings, roller bearings, special bearings,
deep groove ball bearings, and thrust roller bearings

Model table of medium and large four row...


The most popular ADAPT bearings are used...

Popular models: TA4020V, TA4028V C4, TA4032V, TA5020V, TA3120V, TA4022V, TA4122V, TA4024V C4, TA4026V, TA4126V, TA2226V, TA4030V, TA4130V, TA4034V...

The most popular rod rebar rolling mill ...

The multi-row cylindrical roller rolling mill bearings in the above table are all in stock. Hot models: 544199, 541515, 510150,507536, 510199,508726, ...

Get a Quote

Customize Your Bearings
For Your Project

Describe your needs such as bearing type and bearing code, or parameter.

Get a Quote from FV Bearings

Get the latest bearings price lsit from FV bearings. We’ll reply within 48 hrs