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> Cotton/Phenolic laminated tube PR-2121 (PTR-FLE)
Cotton/Phenolic laminated tube PR-2121 (PTR-FLE)
| Application:Bobbin,feed roller |
Size
Bore tolerance
Outside diameter tolerance
| Test items |
Unit |
Treatment |
PR-2121 |
| JIS (ANSI) |
PTR-FLE |
| Base material |
Sheeting |
| Resin |
Phenolic |
Electrical strength
(Vertical to layer 1 min. in oil) |
MV/m |
C-90/20/65 |
8 |
Breakdown voltage
(Dissipation factor 1 min. in oil) |
MV/m |
15～20 |
Electrical strength
(Parallel to layer 1min. in oil ) |
kV/15mm |
20 |
Breakdown voltage
(Parallel to layer 1min. in oil) |
35～45 |
| Insulation resistance |
MΩ |
103～105 |
| Dielectric constant(60Hz) |
- |
- |
| Dissipation factor(60Hz) |
- |
- |
Flexural strength
(Vertical to layer) |
MPa |
A |
137～196 |
Flexural modulus
(Vertical to layer) |
3,920～5,880 |
Compressive strength
(Parallel to layer) |
127～167 |
Tensile strength
(Parallel to layer) |
68～108 |
| Cleavage strength |
kN |
3.92～5.88 |
Appearnce
after 2hours heat treatment |
℃ |
130℃ OK |
| Water absorption |
% |
E-24/50+D-24/23 |
0.6～1.0 |
| Specific gravity |
- |
A |
1.2～1.4 |
*Test method : JIS K-6911
*Treatment condition
A=Accept state, C=Constant Temperature and humidity , D=Dipping in water E=Electric heating , O=Oil dipping
Starting from the left figures show Time(h)/Temeperature(℃)/Humidity(%)
※The above figures do not show guaranteed value but one of test results .
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