Detail Description
The types of rubber that can be used to cover the drum are: NBR, CR, HYPLON, PU, SBR, SR, and so on. Which can be customized according to your product using environment and product design requirements.




Product Parameters
General rubber performance parameters as follows:
| Test items |
Request |
Actual Test |
Conclusion |
|
| MPa tensile-strength (Mpa) |
≥18 |
20 |
qualified |
|
| Elongation at break(%) |
≥300 |
317 |
qualified |
|
| Permanent set of pull-apart(%) |
≤25 |
24 |
qualified |
|
| SHAW type A Hardness |
Bend Pulley |
60~70 |
70 | qualified |
|
Driving pulley |
≥70 |
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| Abrasion Loss(mm3) |
≤90 |
88 | qualified | |
| aging coefficient(70℃×168h) |
tensile-strength |
-25~+25 | 20 | qualified |
|
change rate(%) |
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|
Elongation |
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at break change rate |
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2:physical and mechanical properties of bottom rubber:
|
Test Items |
Request |
Actual Test |
Conclusion |
|
MPa tensi l e-strength(Mpa) |
≥30 |
30 |
qualified |
|
elongation at break(%) |
≥300 |
330 |
qualified |
|
anti-breakdown strength(Mpa) |
≥69 |
80 |
qualified |
|
heat-resistance (℃) |
80 |
85 |
qualified |
|
Adhesion strength between rubber and metal(Mpa) |
≥4.0 |
4.9 |
qualified |
|
Adhesion strength between rubber and metal after heat treatment(Mpa) (hot air method for heat treatment,temperature 1452±2℃,time:150 minutes.) |
≥3.2 |
5 |
qualified |
Diagrammatic Drawings and Parameters
Diagrammatic Drawings and Parameters for Rubber Lagging Pulley:

|
Belt Width (mm) |
Φ1 |
Φ2 |
L |
L1 |
L2 |
D1 |
D2 |
D3 |
t1 |
t2 |
a |
m |
h |
b |
n |
u |
v |
Remarks |
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