Air side face The oil seal surface vertical to the center line of the shaft on the side that does not come in contact with substances to be sealed is called the back face.
- 2. Brand Different brands offer various levels of quality and durability for their car oil seals. Some brands are known for their high-performance products, while others may focus on offering affordable options. The brand you choose will also influence the price of the oil seal.
When it comes to choosing the right oil seal for a particular application, there are several factors to consider. One of the key aspects is the material used in the construction of the seal. Different materials offer varying levels of resistance to heat, chemicals, and wear, so it is essential to select a seal that can withstand the specific conditions it will be exposed to.
⑧ Choosing the right oil seal
Housing Stop Installation
No. - Manufactured from materials like steel, asbestos (though now largely phased out due to health concerns), or composite materials, head gaskets are designed to withstand extreme temperatures and pressures. They must be durable enough to resist the constant expansion and contraction caused by heating and cooling cycles, while also being resilient against chemical corrosion from oils and coolants.
DIN
Old School O-Rings
Leather is probably the oldest of the lip materials still in common use, but the move towards mass production methods has seen a massive increase in the development of synthetic rubbers which lend themselves to accurate and repeatable injection and compression moulding. Nitrile (NBR) is still by far the most common elastomer for “normal” use, whilst Viton® (FKM/FPM) is rapidly replacing Polyacrylate (ACM) and Silicone (VMQ) for high-temperature applications. Viton® also has high resistance to abrasion and chemical attack making it a preferred elastomer. Recent developments in the use of PTFE for Rotary shaft seals has caused widespread interest particularly for high-speed shaft rotation or poor lubrication applications.
For details on shaft and housing design, please see the following:
Examples of allowable total eccentricity for oil seals
Figure 1: Types of sealing devices
Spring The spring supplements the tightening force (i.e., the lip radial load) to ensure enhanced sealing performance and tight contact between the shaft and the sealing edge.The spring also prevents the deterioration of main lip sealing performance caused by high heat or other such factors.