I L LU S T RAT E D S 0 U RC E B 0 0 K of ME C HAN I CAL C 0 M P 0 N E N T S
8 Unusual Applications for O-Rings
16 Unusual Applications for the O-Ring
Look at O-Rings Differently
O-Rings Solve Design Problems I
O-Rings Solve Design Problems II
7 More Applications for O-Rings
Design Recommendations for O-Ring Seals
O-Ring Seals for Pump Valves
8 Unusual Applications for 0-Rings
Playing many different roles, O-rings can perform as protective
devices, hole liners, float stops, and other key design-components.
Robert 0. Parmley
QUICKLY ADJUST FLOAT STOP
CUSHION: ROPE IN
16 Unusual A
for the 0-Ring
This handy little component finds a place in pumps, drives, glands,
shock-mounts, pivots, knobs, valves and seals.
James F. Machen
Tapered bore . . .
in diecasting, plus loose-fitting O-ring, gives
low-cost pump for
Exomple: carburetor accelerator-pump.
Sealed pivot . . .
allows transmittal of multidirectional, mechanical movement to hydraulically
or pneumatically isolated system. For high-temperature seals, silicone rubber
can often solve the problem-but
always guard against excessive "set.'
Simple drives . . .
utilize not only O-ring but its physical properties also-high
friction and elasticity.
Single-ring gland . . .
is ideal for low pressures and high-
viscosity fluids. If necessary, another
ring may be installed.
Shaft seal . . .
may be held by rolling the thin body-wall over the O-ring. Bolt seal (8) is
squeezed into countersink when bolt is tightened. Cross-sectional area of
countersink must not be less than that of O-ring since molded rubber is
practically incompressible when confined.
One-way pressure . . .
applications require O-ring seals to be supported on pressure side only.
or static (10) as in pipe plug.
Seal may be movable (9) as in grease gu