For set screws of automobile wheel hub assembly, it is believed that many people do not count them themselves because some cars have four, some cars have five. So the question is, what's the difference between four screws and five screws? Can it be unsafe if a screw is missing?
First of all, these screws is used to fix the
wheel hub assembly. Then, can it be unsafe if a screw is missing? It is not. Before the cars leave the factory, they are rigorously tested such as bench test, road test, etc. So whether it is 4 or 5, there is no difference in essence, because a screw will not affect the safety of driving. In Formula one racing, secure with a screw for convenience of replacing the tires.
Of course, do not worry about the quality problem of screws. As is known, the tire relies on the wheel hub assembly, and then the powerful power system ultimately outputs all the power from the axle to the wheel hub assembly. And hub bolts(set screw mentioned just now) are the means of transmission. It can be said that the design and calibration are very careful, so do not worry about the quality of parts. As for the number of screws, it is not arbitrary. It is related to the vehicle weight, wheel hub assembly stress and weight distribution. In general, the family car of about $100,000, there are 4 set screws in the wheel hub assembly. However, for medium - and large-sized vehicles such as SUV, five screws are basically required to fix them. For some luxury models, six screws are also required.
All in all, the number of screws in the wheel hub assembly depends on whether your car is SUV or luxury car or family car. Of course, the number of screws are calculated by the engineers according to the weight of the car body and the bearing capacity. It is not more or less, so don't worry.
Wheel Bearing
Wheel Bearing is a set of steel balls or rollers held together by a metal ring called a race. They help wheels spin fast with as little friction as possible. View More
Wheel Bearing Kits
When you need to change the wheel hub bearing,you also need to replace many other parts at the same time,such as hub nut,bolt,seals,split pin,and so on. View More
Clutch Release Bearing
Clutch Release Bearing is what presses down on the rotating spring plate or "pressure plate" to release the clutch disk. View More
Belt Tensioner
A Drive Belt Tensioner is a pulley mounted to either a spring mechanism or to an adjustable pivot point that is used to keep constant tension on your serpentine belt. View More
Fuel Pump
AiX provide you with the high quality of electric fuel pump and fuel pump assembly.Fuel pump assembly is one of the vital components of fuel injection system for EFI vehicle. View More
Water Pump
The reliable and effective operation of an automobile engine requires the cooperation of many parts. View More
Wheel Brake Cylinder
When you want your car to slow down or stop, you need to take the brake operation. At this point, you need to step down your brake pedal. View More
Crankshaft
Crankshaft is also known as crank.It is the important part of an engine to convert the up and down motion of the pistons into horizontal rotation.It is usually made by cast iron or forged steel. View More
VVT PHASER & OCV
VVT is the abbreviation of Variable Valve Timing. VVT PHASER is the vital component for the VVT engines. View More
+86-18758057736 
TEAM 21,XIEJIA VILLAGE, PUYANG TOWN, XIAOSHAN DISTRICT, Hangzhou, Zhejiang Province, China 