The Professional Auto bearing, Textile machine bearing and bearing unit supplier and solution specialist

2022 December the First week UNIM Technical Knowledge: Maintenance free hub bearing solution for commercial vehicles

In recent years, China's commercial vehicle industry is in a period of rapid development, with the production and sales volume increasing. From a long-term perspective, manufacturers and users put forward higher requirements for the quality of the whole vehicle, which requires that hub bearings have good performance. Therefore, improving their service life, reducing product noise, and manufacturing high-quality hub bearings have become the common goal of all domestic hub bearing production and processing enterprises.




Product application: The first generation maintenance free cone hub of commercial vehicles is widely used on the hub of commercial vehicles. It is mainly used at the support of the transmission shaft to withstand bidirectional radial load and small axial load in any direction, and is used for the rotation movement with low speed and impact. The internal raceway surface of the product is designed with a conical angle, so that the bearing can effectively carry the radial and axial combined load.


Product advantages: according to the market demand, our company has increased the development of the first generation maintenance free tapered hub bearing for commercial vehicles, improved some key technologies, greatly improved the manufacturing accuracy of the product, improved the sealing performance of the product, improved the service life of the product, reduced the noise of the product, greatly improved the quality and stability of the product, and also greatly improved the production efficiency.

Maintenance free scheme for commercial vehicles


Installation side video


Select reason:

• Eliminate the failure problem caused by bearing adjustment clearance;

• Extended maintenance intervals and longer warranties;

• Quality improvement, durability and reliability of parts;

• It can be maintained easily and quickly.


Long life:

By optimizing the structure of the raceway contact profile, the rotary friction torque of the product is reduced, the bearing capacity of the product is improved, and the rotary accuracy and service life of the product are effectively improved;

High temperature resistant and wear-resistant sealing ring material, which improves the sealing performance and waterproof performance of the bearing for a long time;

Grease has excellent oxidation stability, high and low temperature resistance, rust and corrosion resistance, water pollution resistance, anti-wear and extreme pressure protection.


High reliability:

The axial clearance of the first generation maintenance free tapered hub bearing of commercial vehicles has been adjusted in the factory, so it is unnecessary to adjust the bearing clearance during loading to eliminate the failure problem caused by adjusting the bearing clearance;

High precision bearing grade control makes the bearing quality improved, durable and reliable;

Maintenance free first generation tapered hub bearings for commercial vehicles are maintenance free for life.

At present, our company's production and processing technology for this product is mature, the process is stable, and the cost performance ratio is good, with broad market prospects.

More about UNIM Auto Bearing

The main function of automobile bearing is to bear the load and provide accurate guidance for the rotation of the automobile. It bears both axial and radial loads. It is a very important component. The traditional bearings for automobile wheels are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of the bearings are carried out on the automobile production line. This structure makes it difficult to assemble in the automobile factory, with high cost and poor reliability. Moreover, when the automobile is maintained at the maintenance point, the bearings need to be cleaned, oiled and adjusted. Automobile bearing unit is developed on the basis of standard angular contact ball bearing and tapered roller bearing. It integrates the two sets of bearings as a whole. It has the advantages of good assembly performance, omitting clearance adjustment, light weight, compact structure, large load capacity, pre loading grease for sealed bearings, omitting external hub sealing and free from maintenance. It has been widely used in cars and has a trend of gradually expanding its application in trucks.


UNIM Auto bearings include Gear Box Bearing, Starter Bearing, King Pin Bearing, Hvac System Bearing, Wheel Hub Bearing, Tensioner Bearing, and Clutch Release Bearing. In order to make the better support for our customers to produce and develop their products and to expand their market, we try best to improve ourselves on the company management, product design and staff training.


Auto Bearing