In this an auxiliary lip is provided along with the regular sealing lip. The additional dust lip protects the main sealing lip against dust and other fine solid contaminants and therefore this type is recommended for use in polluted environments. To achieve a long lifetime a suitable lubricant between the two sealing lips should be applied.
Installing an oil seal correctly is essential for ensuring optimal performance and longevity of your equipment. This guide provides detailed instructions on preparing for installation, executing various installation techniques, and avoiding common errors. Our step-by-step approach will help you achieve a reliable seal every time, preventing leaks and mechanical failures.
Table 8 shows the housing design checklist.
Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.
Without minor lip
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.


(This prevents failure during mounting.)

