External retaining rings are applied axially.
They are expanded with the aid of retaining ring pliers
to pass down over a shaft and then released to spring
back into a groove. A tapered section ensures even
pressure when fitted.
The nominal size refers to the
diameter of the shaft over which the retaining ring is
designed to pass.
• Inch Series: N1400-0100 (1.00" shaft)
• Metric: D1400-0400 (40mm shaft)
(Click a row for detailed specifications)
for a wide range of typical external applications.
rigid, load-bearing shoulder on a shaft.
Provides resilient end play take-up, acting like
a spring to fill the gap in any tolerances in an
assembly to "take up the slack". Reverts
to a rigid retainer if the applied load is such
that the ring is flattened.
Provides rigid end play take-up.
Used to take up any tolerances in
an assembly but, unlike to 1401,
will not flex when in place. The chamfered
end expands into the mating groove where the
ring "rides down and forward" to contact the
retained part. Contact
Reduces clearance diameter. Designed to
give low shoulder height and used in
applications where the relatively larger
1400 lugs may not be acceptable. The fitted
profile is "tidier." Smaller sizes in
particular are also better dynamically
balanced than standard 1400 types.
Design based upon 1400 series but with
increased thickness (and increased depth
in the case of the N1460 series) for added strength
when shock loads are present and also to
resist conical deformation when, for
example, large abutment radii are
Additional lugs provide additional
abutment area. Used to maintain full
contact with retained parts having
large chamfers or radii which would
otherwise contact the ring only at the
lug and "beam." This ensures more even
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