This document defines and describes different types of circlips, including external, internal, lugged, E-type, and snap rings. It explains that circlips are semi-flexible metal rings that snap into grooves to allow rotation but prevent lateral movement. The document outlines the advantages of circlips in holding parts in place and maintaining a constant unit with smooth function. It provides examples of circlip applications in motors, turbines, vehicles, optics, chains, electronics, and more.

1. Prepared By,
NAME:-SUNARIYAARYAN A.
SUB:-MANUFACTURING SYSTEM
SEM:-6th MECHANICAL
ENROLLMENT NO:-176930319542

2. INTRODUCTION
 DEFINATION:-
 A Circlips (a portmanteau of "circle" and "clip"), also known as a C-
clip, Seeger ring, snap ring or Jesus clip is a type
of fastener or retaining consisting of a semi-flexible metal ring with open ends
which can be snapped into place, into a machined groove on a dowel pin or other
part to permit rotation but to prevent lateral movement.
 There are two basic types: internal and external, referring to whether they are
fitted into a bore or over a shaft. Circlips are often used to secure pinned
connections.

3. INDUSTRIAL CIRCLIPS

4. TYPES OF CIRCLIPS
 External Circlip Standard
 Conforms to BS3673 Part 4, the most common
form of axial retainer for shafts with grooves.
Generally, only metric sizes and manufactured
for 3mm to 300mm shafts. USA specifications,
heavy-duty versions and various lug
configurations are also available on request.

5.  External Circlip Lugged
 Conforms to DIN 983, axially fitted to shafts
with grooves, similar to the standard design
but with additional equi-spaced lugs around
the O.D. This feature assists in maintaining
good contact with radiused or chamfered
components for 16mm to 140mm shafts.

6.  Internal Circlip Standard
 Conforms to BS3673 Part 4 and DIN 472, the
most common form of axial retainer for bores
with grooves. Generally, only metric sizes are
manufactured for 8mm to 360mm bores. USA
specifications, heavy-duty versions and
various lug configurations are also available
on request.

7.  Internal Circlip Lugged
 Conforms to DIN 984, axially fitted to bores
with grooves, similar to the standard design
but with additional equi-spaced lugs around
the I.D. This feature assists in maintaining
good contact with radiused or chamfered
components for 16mm to 170mm bore.

8.  E-Type External Circlip
 Conforms to BS3673 Part 2 and DIN 6799,
the most common form of radially fitted
Circlip to shafts with grooves. Nominal size is
the groove diameter (not the shaft diameter),
available in inch sizes from 0.052″ to 0.940″
and 0.8mm to 30.0mm grooves. Circlip pliers
are not required for installation.

9.  Snap Rings
 Axially fitted in shallow grooves as
conventional circlips. Often used to retain
narrow section components with light side
loads. Unlike conventional circlips, special
fitting tools are not required..

10. ADVANTAGES OF CIRCLIPS
 Holding in place
 Maintaining a constant unit
 Maintaining a constant unit
 Grip
 Smooth gear function

11. APPLICATIONS OF CIRCLIPS
 Most applications that need a part to turn, spin or pivot where a bearing is used.
 Electric Motors
 Turbines
 Pistons
 Vehicle construction
 Brake adjustment
 Optical devices
 Sprocket chains
 Electronics
 Roller/Wheel bearings
 Gearing/Transmission
 Clutches