Compo Friction Sheet HCAF 211 GG:COMPO HCAF 211 GG is one of the "COMPO" range of Non asbestos friction materials. It is rigid moulded product dark grey in colour and having short filaments of steel and non - metallic substances in a random dispersion and uses a specially developed resin as matrix which contributes to both the strength and performance of material. This material is produced only in flat sheet form and suitable for use under dry or oi immersed operating conditions HCAF 211 GG has medium friction with excellent fade and wear resistance. It machines well and suitable for use at a variety of duty levels, yielding consistent performance characteristic. This material is manufactured with ground finish on both surfaces, so may be bonded on either side.Applications:
- Industrial disc. brakes.
- Industrial clutches.
- Tractor steering clutches.
Technical Data:
Friction
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u for design purpose
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0.35 (dry)
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Physical Properties
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Data based on standard test methods
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Specific gravity
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2.00
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Rockwell hardness
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L65
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Ultimate compressive strength
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850 kg/cm2
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Ultimate shear strength
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115 kg/cm2 |
Ultimate tensile strength
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135 kg/cm2 |
Thermal conductivity
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0.97 W/m oC
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Recommended Operating Range
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Maximum temperature
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350oC |
Maximum continuous temperature
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150oC |
Unit Pressure
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70-600 KN/m2
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Maximum rubbing speed
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18m/sec.
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Size range
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Thickness
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3mm to 25mm
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Length
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304mm (12")
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Width
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304mm (12")
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Note:
The continuous temperature quoted is for constant slip condition. It is possible to exceed the recommended maximum continuous temperature for intermittent applications upto 225oC for long periods.
Recommended Mating Surface:
- Good quality close grained pearlitic cast iron.
- If steel, then forged or cold rolled with a brinell hardness of 200 or over.
- Cast steels are not recommended for use as mating surface.
Machining Data:
Carbide tipped tools are recommended for use with this material for drilling, turning and boring.
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