
Also known as a Rotary Shaft Seal, Shaft Seal, Lip Seal, Elastomeric Lip Seal or any variation of these. It is a simple device for excluding dust, dirt, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. Generally, it has been developed as a means of protecting the bearings of rotating shafts.
Always start by making sure the oil seal is facing the right direction. The oil seal must be positioned with its spring to the side of the medium to be sealed. The oil seal must then be pressed into the bore. It must fit tightly (H8 in the groove is recommended). Use appropriate tools for this, such as an impact socket set, to ensure that the force is applied evenly during pressing. The oil seal must never be hammered into the bore with brute force, but eased in.

twin spark plug. This is especially noticeable during high-speed driving or when accelerating from a standstill, where every ounce of power is crucial for optimal performance.
Proper preparation is crucial for successful oil seal installation. Ensuring that the seal, shaft, and bore are correctly prepared and aligned prevents seal failure, leakage, and premature wear of the components.
2、For products
Generally, oil seals vary in materials and types based on the corresponding application. Common materials include:
WHAT ARE THE TYPES OF OIL SEALS?
Today, traditional oil seals have to compete with a new variant oil seal, which is used in most modern engines.
Figure 5: JTEKT seal numbering system
Table 6: Codes and numbers used in seal numbers