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Many power
steering applications use high-pressure
hydraulic systems. Seals for power steering applications
(like the one shown in Figure 225)
include an input shaft
seal (also known as a stub shaft seal) and
a pinion seal.
These seals are for shafts with slow oscillating rotation,
and they typically have operating pressures that
are 10 to 20 psi.
The
outer rack seal and inner rack seal are reciprocating
applications and can see pressures up to 1500 psi.
Typical rack seals will have plastic or PTFE back-up
rings to prevent seal lip blowout.
AUTOMOTIVE
APPLICATIONS MAIN PAGE
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“Because
of the many ways in which shaft seals may be
configured, they are common in a wide variety
of automotive applications.”
Figure 225
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