Fiberglass rings-------Epoxy resin with Filament Wound Rings for reinforced commutator and motor.

Epoxy resin with fiberglass ring



PROPERTIES
UNIT OF MEASURE
TYPICAL

*Color

*Resin content ( weight % )

*Glass fiber content ( weight % )

*Composit density



*Circumferential tensile strength

at 20°C

(NOL test )



*Temperature at which the residual of

Initial tensile strength is greater then

85%



*Fiber diretion thermal expansion coefficient (CTE)



*Thermomechanical analysis:

Glass transition temperature

(ASTM  E  1545-93 )


 

%

%

g/cm3



Mpa

(PSI)



°C

(°F)



1/K



°C

(°F)


Light brown

16-23

84-77

2.10-2.20



800-1200

(116000-174000)



300°C

(572°F)



8.50E-06



300-350°C

(572-662°F)



NOTE:

Mechanical NOL data vary within a range determined by resin content and the ratio diameted thickness of the ring .This ratio gives a flexural mode that will cocur during  test and test data can vary for each type of ring.