Sealing of Grease and Oil on Machine Elements
Cassette seals are highly rigid and therefore employed for very heavy-duty use and in dirty environments, like commercial vehicles, materials handling equipment, as well as agricultural, forestry and construction machinery. Cassette seals are fully encapsulated. The inner body forms a grease-filled labyrinth with several sealing and dirt lips (radial and axial). The main sealing lip is spring-energized. The grease filling reduces wear, increases the lifetime and thereby extends maintenance intervals for heavy-duty applications. Cassette seals also contain a fully pre-treated sealing contact surface. Therefore, the shaft does not have to be specially hardened and grounded.
Benefits at a Glance
- Reliable protection against dirt, mud, water and dust
- No additional dirt seals are required
- Robust sealing system
Cassette Seals Are Special Seals
Which Are Available on Request
- NBR cassette seals show good chemical resistance to numerous mineral oils and grease.
- FKM cassette seals show good resistance to mineral and synthetic oils and greases, engine, gear and ATF oils, fuels, aromatic and chlorinated hydrocarbons and solvents