Single, springless, PTFE lip with fluorocarbon static sealing washer. Used for higher speeds, pressures, and temperatures. Good for corrosive environments.
Single, springless, PTFE lip with fluorocarbon static sealing washer. For higher pressures. SMSEO used for pressures to 10 bar (150psi). SMSHO used for pressures to 25 bar (375psi).
Patented Failsafe design. Sealing lip is energised without the use of metal springs. Used when space is limited and use of a loose garter spring could result in component damage.
Three, springless lips in a single case. Used in low pressure applications when retention of grease and heavy oils is required.