Stainless Steel PTFE Oil Seals
The PTFE lip seal is a rotary lip seal that features an ID lip. The ID lip seals dynamically on a shaft and metal casing on its OD to seal press-fit statically into a bore. There is a metallic backing or O-ring on the seal OD to support and prevent seal rotation. The seals are manufactured from an extensive array of PTFE composites along with also other machinable plastic materials. Standard gasket choices are fluorocarbon, nitrile. Metal case materials include stainless steel, cold-rolled steel, zinc-plated cold rolled steel and aluminum. This broad foundation of standard gasket, metal and PTFE materials can be tailored to accommodate a majority of applications.
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Product Introduction
How do PTFE rotary seals work?
The PTFE rotary seals work by compressing and keeping lubricant in a thin layer between the lip and the shaft. A gasket is inserted between the layers of sealing lips to seal off the potential leak path. For example, when used in conjunction with a hydrodynamic aid, the rotational lip seal operates as a pumping assist to improve functioning by moving fluid away from the lip at high rates.
PTFE lip seals typically serve two purposes: they retain the bearing or system lubricated and they keep out any contaminants that could damage the system or bearing. The operation of the seals in maintaining the bearing or system lubrication is critical for the entire equipment or machine.
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