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General Description:
CR-2 is a flexible moulded, non-metallic friction material, light grey in colour and having a random fibre asbestos base. It is available in roll and strip form and is suitable for use under dry operating conditions only (i.e. it is not suitable for use in oil).
Although having a high friction level, CR-2 is silent in operation with excellent temperature and wear resistance.Being ground on both surface: CR-2 is perfect for bonding on either surface as well as for attaching with rivets.
Applications:
Scooter and map drum brakes and clutches, automatic edrum brakes, industrial drum brakes, industrial band brakes, excavator brake and clutch band linings.
Technical Data:
Friction
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Mu for design purposes (see-curve)
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0.40
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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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2.0 kgs / cm2
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Ult. tensile strength
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140 kgs / cm2 |
Ult. compressive strength
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566 kgs / cm2 |
Ult. Shear strength
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77 kgs / cm2 |
Rivel holding capacity
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527 kgs / cm2 |
Shore hardness "D"
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50-70
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Recommended operating range
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Unit pressure
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1.0 - 7 kgs / cm2 |
maximum velocity
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18m / sec.
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Maximum temperature
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350oC
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Maximum continuous temperature
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150oC
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Note:
The continuous temperature quated is for constant slip conditions. For intermittent drum brake applications, bulk temperatures of 250oC are acceptable for long periods.
Bonding:
CR-2 may be bonded with any of the established bonding adhesive although for the best results, thermosetting adhesives should be used CR-2 is supplied ground on both surfaces and so may be bonded on either side as required.
Recommended Mating Surface:
Good quality fine grained pearlitic cast iron. Cast steel is not suitable as a mating surface but forged or cold rolled steel with a Brinell hardness of 200 or more may be used.
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