Product Introduction

In the modern automotive industry, wheel hub bearings play a crucial role as important components that connect wheels and axles. The DAC45840045 ZZ and DAC40740042 ZZ produced by Chinese bearing factories are two common models of wheel hub bearings. This article will provide a detailed introduction to the structure, application, technical characteristics, and role of these two bearings in the automotive industry.

1、 Basic information of DAC45840045 ZZ and DAC40740042 ZZ bearings

Model definition:

DAC45840045 ZZ：

DAC： Representing the wheel hub bearing series.

45: Indicates an inner diameter of 45 millimeters.

84: The width (i.e. thickness) of the bearing is 84 millimeters.

00045: Represents outer diameter.

ZZ： Both sides of the bearing are equipped with dust covers, suitable for high sealing performance requirements.

DAC40740042 ZZ：

DAC： Also refers to the wheel hub bearing series.

40: The inner diameter is 40 millimeters.

74: The width of the bearing is 74 millimeters.

00042: Represents outer diameter.

ZZ： Also represents dust cover.

Size parameters:

The DAC45840045 ZZ has an inner diameter of 45mm, an outer diameter of 84mm, and a thickness of 45mm, making it suitable for most light and commercial vehicles.

The DAC40740042 ZZ has an inner diameter of 40mm, an outer diameter of 74mm, and a thickness of 42mm, making it suitable for use in some mid size sedans and small commercial vehicles.

                                                Roller Type                                                                        Ball Type

Application area

Automotive industry:

DAC45840045 ZZ and DAC40740042 ZZ are mainly used for sedans SUV、 Wheels for light trucks and commercial vehicles. As a part of the vehicle's power transmission and support system, wheel hub bearings can directly affect the performance and safety of the vehicle.

Especially in some mid to high end cars, using these high-precision and long-life wheel hub bearings can improve the stability of the wheels, enhance driving comfort and safety.

Electric vehicles (EVs):

With the development of electric vehicles, the demand for bearings in electric vehicles is increasing day by day. The high load-bearing capacity and low friction of these bearings are particularly suitable for efficient and long-lasting operation of electric vehicles.

Commercial vehicles:

The stability of wheel hub bearings is crucial for commercial vehicles that operate under high loads for long periods of time. DAC45840045 ZZ and DAC40740042 ZZ can both operate continuously in extreme environments, ensuring the normal operation of the vehicle.

If you are a wholesale or dealer,if you are finding auto wheel hub bearings.Kinly contact us.