wheel hub bearing model DAC44720033

The hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. Hub bearings are components used at the axles of autos to support load and provide precise guidance for the rotation of the hub. They bear both axial load and radial load, and are an important part of auto load and rotation.

Auto wheel hub bearings are double-row angular contact ball bearings, which have the characteristics of double-row angular contact ball bearings. Generally, they adopt double-half inner ring structure with a large base number, which is easy to assemble and ensure bearing clearance.

Characteristics of bearing conditions

Carrying requirements

To withstａnd the combined load caused by the weight of the vehicle, road impact, and lateral turning;

Long life requirements:

3 years and 100,000 kilometers.

Comfort requirements

No abnormal noise, wheel swing;

Adapt to different road conditions, vehicle speeds and turning acceleration;

Sealing performance requirements

Road muddy water and general chemical erosion protection;

Safety performance requirements

Anti-fracture, ABS anti-lock, anti-loose bolts;

Lubrication performance requirements

Meet the ambient temperature of -40℃～130℃, maintenance-free for life.

Installation and use requirements

Easy to install and adjust the clearance

Application characteristics

The periphery of the bearing is full of water vapor and dust；

Bearings are often in contact with mud；

Bearings will be used in high temperature and high cold areas；