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
Wire Locks and Snap Rings for Fasteners
Applications of Helical Wire Inserts
Types of Wire Ties for Reinforcing Bars
Wire Rope Designs
For Cable Drives-These Design Hints
Cables Anchor Timber Bridge Abutment
Aerial Cable Installation
Cable Replaces Piston Rod
Wire Locks and Snap Rings
Frequently considerable saviogs can be made by the substitution of wire locks
or snap rings in place of expensive tapping operations, or to eliminate the neces-
sity of boring holes to two different diameters and grinding shafts to shoulders.
Often, screws and lock nuts can also be eliminated.
Wire locks and snap rings can be used only where the loads are radial and
thrust loads are light. Spring steel or music wire is usually used for the mate-
rial. Usually, &-in. diameter wire is sufficiently large.
In nearly all of the ac-
companying illustrations the wire size is shown exaggerated.
Figs. 1 and 2-Two
common applications for wire locks to a screw or a pin.
two forms of grooves shown here should be avoided, as each
offers too much difficulty in snapping off the ring, particularly when the outside
or outermost diameter of the wire ring is below the surface of the work.
view of a successful type of groove, the rounded edges per-
mitting the wire to be snapped out with greater facility.
locks may be made in the form of a close wound spring and suc-
cessive coils cut off to suit. Diameter A should be &-in. smaller than the
diameter E indicated in Fig. 4. Lap C should be 6
in. for each &-in. difference
between diameters A and E.
Figs. 6 to E-Three
typical applications of snap rings.
lock of &-in, wire on a &in. diameter pin, as used in a well-
known universal joint. Once assembled, the spring loc