The ISO standard defines bearings with different accuracy grades, including P0, P6, P5, P4 and P2 grades. These grades reflect the machining accuracy and performance of the bearings.

There are many ways to classify rolling bearings, including shape, size, parameters, etc.

The life of a wheel hub bearing is affected by many factors, including the quality of the bearing itself, the vehicle’s operating environment (such as outdoor or off-road conditions), driving habits, road conditions, load values, and maintenance.

As an indispensable part of a car, the car wheel hub bearing plays a key role in connecting the wheels and axles. It not only bears the overall weight of the car, but also ensures the smooth rotation of the wheel hub. Therefore, it faces the dual load challenges of radial and axial loads at the same time.