Another important aspect of bolt structure is the threading. The threading of a bolt refers to the grooves that wrap around the shank of the bolt. The threads on a bolt are what allow it to be screwed into a nut or a threaded hole in a material. The pitch, or distance between each thread, can vary depending on the application of the bolt. Coarse threads are better suited for applications where quick assembly is required, while fine threads are used for applications that require higher strength and precision
- The steering rack, also known as the rack-and-pinion gear, converts the circular motion of the steering wheel into linear motion that steers the wheels. The oil seal, usually made from durable materials like rubber or polyurethane, is strategically placed to guard the interface between the steering rack and the gear box. Its primary function is to maintain the integrity of the hydraulic system by sealing in the high-pressure steering fluid, preventing it from escaping and contaminating other parts of the car.
Shaft number Pressure
An overview of the different standard types of oil seals and their main characteristics is shown below.
Rotary Wheel Of Auto Parts
Oil seals close spaces between fixed and moving parts and protect all kinds of ball and roller bearings. They keep rotating shafts and bearings from pollution and corrosive materials, and also prevent lubricants, oils, and liquids from leakage. An oil seal can have a single lip, double lip and even triple lip, so single lip seal is one lip to seal around the shaft, double lip seal is two lips sealing around this, and triple lip seals have three lips to seal.
Rotary Wheel Of Auto Parts
2. Use the correct lubricant
d1, mm
Oil seals are an essential component of many industrial machines and equipment. They play a crucial role in preventing oil leaks, protecting bearings and other crucial parts from contamination, and ensuring the overall smooth operation of the machinery. One popular and widely-used size of oil seal is the 75x100x10 model.


Most oil seals are designed to support very low-pressure (8 psi or less) applications. If at all, there will be additional pressure along the way, pressure relief should be put into play. This is why it’s important to know the characteristics of the oil seals you are considering and compare them with your application.
Operating conditions such as the engine’s temperature, position, size, pressure and shaft speed largely determine which individual oil seal composition is most suitable for every individual application.
The depth of the bonded seal can be less and the space between the bore and the outside diameter can be changed for ease of fitting. The bonding of rubber to metal is an important factor to be considered in the manufacture of such seals and should be considered carefully, since failure of the bond will cause the seal to fail. The metal case of the oil seal is usually made from mild steel of deep drawing quality which enables blanking, punching, stamping of the steel to the required dimensions.