Page 1 - Combined_134_OCR

FLYINi

057 7 ±OI5
ZI6
067
II5
I35 RAD.
K.

O96±005
DIA.HOLE
026
036 307
317

The distance from the center of this part to the edge of the collar is held to
plus or minus .003. Straightness is held to .008 Total Indicator Runout, and
body diameter to plus or minus .001 5. ■ The pierced hole in the flat section is Gc
held to plus or minus .005 diameter, with .003 maximum burr. ■ In assembly,
a U-shaped terminal is installed on the tip after it is inserted through the
parent panel. The .101 x .1 30 hole in the tip facilitates this operation by making Co
the part self-riveting.
THE
Golc
TOLERANCE RANGE OF HEX, ROUND AND SQUARE to u
COLLAR DIAMETERS
BODY SIZE ECONOMICAL NORMAL EXPENSIVE brou
ELCO .070 to .125 ±.004 ±.0025 ±.0015 first
±.005
±.003
±.002
.126 to .250
mers
.251 to .375 ±.006 ±.004 ±.0025 to ci
±.003
Cold-Heading .376 to .625 ±.007 ±.005 ±.0035 the <
±.006
±.008
.626 to 1-1/8
4-wh
TOLERANCE RANGE ON COLLAR THICKNESS
design tips #3 BODY SIZE ECONOMICAL NORMAL EXPENSIVE load
.030 to .062 ±.004 ±.0025 ±.0015 alone
.063 to .125 ±.005 ±.003 ±.002 horiz
.126 to .250 ±.006 ±.0035 ±.0025
.251 to .312 ±.007 ±.004 ±.003 Alt
.313 to .500 ±.008 ±.0045 ±.0035 Korfi
for t
COLLARS. Elco Cold-Heading process is especially adaptable to producing close-toler­ Tlx
ance collars in a wide variety of locations and shapes, although the most common are increi
round, square and hex. ■ For the most economy, a headed collar should have a slight drive
radius at the outer edge, but Elco can also produce collars with an absolute straight side axle,
through a high speed secondary operation. Elco has produced collars from .060 diam­ braki:
eter to 1.125". ■ Thin collars are harder to produce than others. shape
Where possible, extremely small thickness-to-diameter ratios
should be avoided. of gr
from
FREE BOOKLET: Learn more about Elco Cold-Heading and how vided
it can reduce material costs and solve assembly problems. Elco’s equal
free 36-page catalog #64 contains a wealth of application infor­ tional
mation, 61 actual case histories, tolerance tables, plus a frank dis­ Fro
cussion of the advantages and limitations of the cold-heading arranj
process. It's yours for the asking. Simply circle our number on the a maj
reader service inquiry card, or write to Elco Tool and Screw Cor­ back-t
poration. 1119 Samuelson Hoad. Rockford. Illinois 61101.
August 1, 1968 Circle 119 19 26