Timing belt with controlled friction backside ribs

Details Timing belt with controlled friction backside ribs Timing belt with controlled friction backside ribs

F - Mech Eng,Light,Heat,Weapons

16

G

74/84

F16G 1/28 (2006.01)

Patent

CA 1262063

Abstract of the Disclosure A timing belt having an outer section defined by cogged ribs defining a preselected controlled coefficient of friction obtained by providing controlled size grooves extending transversely through the ribs. The ratio of the effective side area of the grooves to the side area of the cogs defined in the ribs by the grooves, in the illustrated embodiment, is in the range of approximately ? to 2? where the coefficient of the rib material is approximately 0.35. The cogs are raw edged and provided with a cover fabric. The provision of the cogged ribs permits the belt to be used as a double timing belt as well as providing improved functioning with back- side rib pulleys. The effective coefficient of friction obtained by reducing the side area of the ribs as a result of the provision of the grooves is preferably in the range of 0.15 to approximately 0.90. The total area of all of the side faces of the cogs and effective side areas of the grooves is approximately equal to the height of the outer section defined by the cogs and grooves multiplied by the length of the belt.

501585

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