Characteristics of release bearing

Release bearing unit is an important part of automobile clutch system. For example, if the release bearing is damaged, it will lead to the failure of the automobile clutch. If the release bearing is not well sealed, the dust is easy to enter the grease. The grease contains dust impurities, resulting in the early failure of the bearing. Therefore, the sealing ring of release bearing is also very important to the bearing. According to the knowledge of clutch release bearing sealing ring, Zhonghua bearing network is summarized as follows.

The common type of release bearing seal ring is lip seal ring, while the traditional clutch release bearing seal ring adopts single lip structure.

Lip seal

Lip seals have two geometries: single lip and double lip. It has small friction resistance, certain anti leakage ability and strong impact peak pressure resistance. Because a self-lubricating oil cavity is established between the main and auxiliary lips, the friction resistance and crawling phenomenon are reduced. Due to the needs of different media, it can provide a variety of performance materials.

Note:

Type B: lip seal ring of rotating shaft without auxiliary lip inner package framework

FB type: rotary shaft lip seal ring with auxiliary lip inner package framework

Lip seal ring structure:

The lip seal ring comprises a skeleton, a clamp spring and a rubber seal body.

skeleton：

The skeleton comprises an annular ring plate extending along the radial direction, and the outer diameter end of the ring plate is overturned along the axial direction to form a cylindrical ring fixed and pressed on the outer ring. When the framework is used to seal non corrosive medium, the framework is made of 08F steel plate or similar steel plate; Used to seal corrosive media such as acid and alkali, it shall be protected by corrosion-resistant steel plate or coating with reliable corrosion resistance. The skeleton is stamped with steel plate with specified thickness, or other methods can be used.