12149 Rhea Drive
Plainfield, IL 60585
Phone (815) 609-4977
Fax (815) 609-5977
CONTROLLED CLEARANCE SEAL
|CONTROLLED CLEARANCE SEAL
The controlled clearance seal is also commonly called a floating labyrinth
seal. The design principle of the seal is to have a precise control
of clearance between the rotating shaft and the inside diameter of the
seal ring. In operation, under ideal conditions, there is a pressure
differential across the seal with the air side pressure being higher
than the oil side. This differential prevents oil leakage and holds
the carbon sealing ring against the oil side mating ring while the shaft
turns freely within the sealing ring.
1. SEAL RING: Carbon provides long life through its excellent wear resistance and chemical and temperature stability.
2. METAL RETAINING BAND: A compression fit with the carbon has two
4. SPRING: Usually a wave spring holds the carbon against the mating
face during start-up and shut down and allows for a small reverse pressure.
Normal positive operating pressure holds the carbon in place.
Small Compact Size