Super large gear slewing bearings exported to Europe

2025-09-22

Extra large four-point contact ball slewing bearing, China slewing bearing, Four point contact ball slewing bearings and gear sents to customers.This bearing is composed of a gear and a guard plate.

Application: Precision bearings for coal preparation machines.



China slewing bearing

The bearing has an outer diameter of 2978 mm and is equipped with a gear module of M=8, Z=390, and a straight tooth structure. After 40 days of hard work day and night, it was finally shipped to the customer today.


The accuracy standards and application maintenance of Four point contact ball slewing bearings are crucial for the use of precision bearings. As a high-precision China slewing bearing and gear manufacturer, DZE Bearing has done a great job in this regard. How to ensure accuracy and how to properly maintain and extend the service life of bearings are important issues facing both bearing manufacturers and bearing users.


One of the highlights of the DZE slewing bearing is its high-precision, high-speed, high-quality design:


Accuracy:


Outer ring radial runout: P5 is 13µm


Outer ring axial runout: P5 is 13µm


Inner ring radial runout: P4 is 5µm


Inner ring axial runout: P4 is 5µm


Inner diameter tolerance: -8µm


Outer diameter tolerance: -7µm

Four point contact ball slewing bearings

The four-point contact ball raceways are arranged at a 45-degree angle, allowing a single bearing to withstand axial and radial forces, overturning moments, and other combined loads in both directions. Therefore, a two-bearing arrangement can be replaced with a single slewing bearing.


Generally, the Luoyang Dongzhou Precision Bearing's four-point contact ball series can reach speeds of up to 500 rpm, making it particularly suitable for high-speed applications.

gear


China slewing bearing

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