The oil seals mainly used in agricultural machinery are generally used for inspection, maintenance and maintenance when the oil seals on agricultural machinery are generally in poor working conditions, large environmental temperature differences, dust, and frequent vibrations of the machine. If the shaft diameter and bearing wear are serious; oil seal rubber aging or spring failure, etc., repair and replace the corresponding parts in time. First, the installation of the skeleton oil seal: When installing the skeleton oil seal, if the outer diameter of the shaft diameter is low or there are defects such as rust, rust, burr, etc., smooth it with a fine sand cloth or oil stone; apply clean oil or grease to the oil seal lip or the corresponding position of the shaft diameter. Apply sealant to the outer ring of the oil seal, wrap the key groove on the shaft with hard paper to avoid scratching the lip of the oil seal, and use a special tool to rotate the oil seal inward, never hard and hard. Failure to prevent the oil seal from deforming or squeezing the spring; if the lip is turned over, the spring is detached, and the oil seal is skewed, it must be removed and reloaded. It should be noted that when the shaft diameter is not worn and the oil seal spring is strong enough, do not tighten the inner spring without authorization. Second, the scope of application of the skeleton oil seal: The skeleton oil seal is suitable for many occasions, especially in the harsh working conditions such as engineering walking machinery, cranes, fire engines and mining machinery vehicles. It has good sealing performance and mechanical characteristics, and is the main component of the shaft secondary seal. In heavy-duty applications, the lip seal can be combined with the addition of a stop or a series of shaft seals to make the seal better. The lip seal has two geometries: a single lip and a double lip. The frictional resistance is small; it has a certain ability to resist leakage, and has strong ability to withstand peak pressure. Because of the self-lubricating cavity established between the main and auxiliary lips, the frictional resistance and creep phenomenon are reduced. Available in a variety of properties due to the needs of different media.
pneumatic seal 
