Acetal Plastic Chain Data
All values are approximate and should not be used as the basis for design.
|
Breaking Load |
100 |
kg |
|
Maximum Continuous Temperature |
80 |
C |
|
Maximum Intermittent Temperature |
105 |
C |
|
Minimum Temperature |
-40 |
C |
|
Water Absorption |
0.12 |
%/24 Hours |
|
Coefficient or Thermal Expansion |
11.0 |
1x10-5 C |
|
Hardness |
M92 |
Rockwell |
|
Maximum Speed |
60 |
Mts/min |
|
Coefficient of Friction |
|
|
|
- On Stainless Steel |
0.15 |
|
|
- On Wet Stainless Steel |
0.13 |
|
|
- On Plastic |
0.14 |
|
|
Pitch |
12.7 |
mm |
|
Roller Diameter |
8.5 |
mm |
|
Roller Length |
7.8 |
mm |
|
Width Over Pins |
21.8 |
mm |
|
Height of Links |
11.3 |
mm |
|
Minimum Flat Radius (Side Flexing Varieties) |
610 |
mm |
|
Weight: |
|
|
|
Straight Flexing |
58 |
gm/305mm (1 ft) |
|
Side Flexing |
67 |
gm/305mm (1 ft) |
Effect of Sunlight
Sunlight causes the material to "Chalk" slightly. This is reduced in the black version.
Chemical Resistance
Acetal has a good resistance to organic solvents and most petroleum based hydrocarbons. It is resistant to acids and alkalis within the range PH4-9 but has limited resistance outside those limits.
The chain is suitable for running on sprockets os standard BS form but chain life will be reduced when running on small sprockets due to the increased angle each chain link is required to turn through.
Acetal is considered safe for use in contact with foodstuffs.