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Gemini woven oilfield is a non-asbestos woven product for heavy-duty industrial applications. It exhibits nearly constant friction level up to 500 ºF. It also shows full recovery by 400 ºF. Gemini Woven Oilfield can be used on wet/ dry band brakes for industrial use where medium to high friction is required.

Specifications

Item Name

Gemini Woven Oilfield Non-Asbestos Material

Specific Gravity (SAE J380)

1.02

Minimum Tensile Strength (ASTM D638)

1500 psi

Normal Coefficient of Friction (SAE J661)

0.54

Hot Coefficient of Friction (SAE J661)

0.44

Maximum Wear Rate (SAE J661)

0.005 in³/hp-hr

Friction Code

GF

Maximum Operating Rubbing Speeds Limits

5000 ft/min

Maximum Operating Pressure Limits

200 psi

Drum Temperature for Constant Operation

550 ºF

Notes

For Normal and Hot Coefficient of Friction (SAE J661):
Friction values shown are for guide purposes only since values deviate with changes in temperature, pressure and speed. Practical design should include a 25 to 50 percent safety factor.

For Maximum Operating Rubbing Speed and Pressure Limits:
Rubbing speed, drum temperature, and pressure are directly related. Changing any one value will change the others. The values shown represent typical conditions, but are not the ultimate limits of the material.

For Drum Temperature for Constant Operation:
Rubbing speed, drum temperature, and pressure are directly related. Changing any one value will change the others. The values shown represent typical conditions, but are not the ultimate limits of the material.