2–176
0.05
0.1
0.3
0.5
0.8
1.2
1.5
1.8
0.145%
0.237%
0.483%
0.7%
1.0%
1.39%
1.68%
1.98%
Tension
kg.
Elongation
2.08
M
3.117
1.52
D
Links
Per
Meter
321
S
1.52
H
4.12
Weight
Per
Meter
0.006 kg
Operating
Tension
Load
0.91 kg
MATERIAL: Acetal Resin, Black
Priced Per Meter
WEIGHT
Approximately 0.031 kg / 5 meters
THE DESIGN
Unit-link design eliminates need for connecting
link and makes length adjustable by
snap-together assembly. Either side of
chain will run on the sprockets.
OPERATING SPEED
To 5.1 m/sec around 8-tooth sprockets;
larger sizes higher.
LOAD TENSION
Operates running tension loads up to .91 kg.
Sustained static tension such as with spring
loaded idlers not recommended. Means of
limiting torque and tension should be provided.
See elasticity table - long term tension gives
greater elongation.
CENTER DISTANCES
Should be adjustable, or adjustable position
idlers incorporated to compensate for pitch
variation and wear.
OPERATING TEMPERATURE
The chain and sprockets have been stress
relieved and have operating capabilities over
the range of minus 40 to plus 121 degrees C.
Sustained temperatures above 82 degrees C
not recommended. Strength derating applies
at elevated temperatures.
P
Pitch
(±
1/2%)
MOLDED
SELF-LUBRICATING
3.117 PITCH
SINGLE STRAND
Plastic Subminiature Roller Chain
A 6M 7M12
Catalog Number
P
M
D
S
H
SERVICE LIFE
Accelerated life tests at 22 degrees C where 2%
elongation represented end of life have given:
(a) 135,600
of work per 25.4 mm (1") of
chain; (b) .06 horsepower transfer for 10 hours.
LUBRICATION
Surface penetration with oil has been provided
and is considered to be sufficient for average
service. Some applications may be found to
require additional lubrication.
QUALITY CONTROL
100% inspection for momentary break strength
(3.2 kg minimum), thickness, width, pitch
dimension and flexibility.
APPLICATIONS-LIMITATIONS
These components are designed especially for
requirements found among mechanical drives in
the field of instrumentation. Servo drives to stylus
or pen carriages in recorders and X-Y plotters,
chart roll drives and counter drives are some of
the principal applications.
Operational speed is seldom a limiting factor,
however, the load, inertial impact and elasticity
factors must be given due consideration and
evaluated in a typical prototype before final
application.
The data provided herein are furnished only
for general evaluation and are not necessarily
indicative of specific use adaptability.
N
×
m
