Snap Rings And E-Clips - Hisun HS400 Service Manual

Snap Rings and E-clips

Snap rings (Figure 1) are circular-shaped
metal retaining clips.
They secure parts in place on parts such
as shafts. External type snap rings are
used to hold items on shafts. Internal type
snap rings secure parts within housing
bores. In some applications, in addition to
securing the component(s), snap rings of
varying thicknesses also determine
endplay. These are usually called
selective snap rings. The two basic types
of snap rings are machined and stamped
snap rings. Machined snap rings
(Figure2) can be installed in either
direction.
General
Because both faces have sharp edges.
Stamped snap rings (Figure3) are
manufactured with a sharp and a round
edge. When installing a stamped snap ring
in a thrust application, install the sharp
edge facing away from the part producing
the thrust.
E-clips are used when it is not practical to
use a snap ring. Remove E-clips with a flat
blade screwdriver by prying between the
shaft and E-clip. To install an E-clip, center
it over the shaft groove and push or tap it
into place. Observe the following when
installing snap rings:
1. Remove and install snap rings with
snap rings pliers. Refer to Basic
Tools in this chapter.
2. In some applications, it may be
necessary to replace snap rings after
removing them.
3. Compress or expand snap rings only
enough to install them. If overly
expanded, they lose their
retaining ability.
4. After installing a snap ring. Make
sure it seats completely.
5. Wear eye protection when removing
and installing snap rings
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