FlexiCase designs feature PTFE lips that seal
dynamically on a shaft and a metal case OD which creates a static, press-fit
seal against the housing (bore).
Gaskets and spacers may be sandwiched between layers of sealing lips
and/or the metal casing to eliminate potential leak paths.
FlexiCase rotary shaft seals are manufactured from a wide variety of PTFE composites as well as machinable plastic materials. The PTFE sealing
lips are generally not spring energized so the
radial lip contact forces are comparably lower than rotary FlexiSeal profiles which are spring-energized. Designs with garter springs are available
for high run-out or abrasive media conditions. Back-up washers on select
profiles extend pressure capability.
FlexiLip rotary seals feature an ID
lip that seals dynamically on a shaft and an elastomeric O-ring on its OD to
seal statically in a bore. Since the lip is not spring energized,
the radial lip contact forces are lower than a rotary FlexiSeal.
The seals are machined from a wide variety of PTFE composites and
other machinable plastic materials. Standard O-ring options are fluorocarbon,
silicone, nitrile and EPDM. This broad foundation of O-ring and PTFE
materials can be tailored to suit nearly all applications. Standard and non-standard FlexiLip
profiles are precision machined to fit inch-fractional and metric gland
geometries. Standardized tooling and machining efficiencies make FlexiLip seals a cost-effective, high production solution.
