These seals have a conically shaped spring, to secure the head and grip the shaft. They have o-ring mounted faces. There are a variety of of different comical spring seals, so we focus on identifying the different types of seal heads in order to guide you to the correct seal.
Inserted Face, Heat Shrink or O-Ring Retained
The sealing face is a separate ring of material, usually CAR, SiC or TC that is not part of a solid monolithic head but is inserted separately and held in place with heat shrink or an o-ring.
The rotary sealing head is made of one single solid piece of material.
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