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Steel synchronising belt shows its teeth

28 July, 2007

A German inventor has come up with a novel design for a mechanical synchronising device, based on a toothed steel drive belt. Martin Gambs claims that his belt (shown in a prototype version below) will run as smoothly as a conventional toothed belt, but offers the rigidity of a chain drive as well as low rates of wear.

Gambs steel belt

Form-locking teeth are attached to an endless belt, made from a high-grade spring steel running on cylindrical pulleys that contain grooves to mate with the teeth. Gambs claims that the combination of a high axial stiffness, and a constant length result in a precision drive system.

Potential applications include synchronising shafts, positioning carriers precisely, measuring distances, conveying and actuation.

Gambs says that the beltís bearing capacity is similar to that of a standard drive belt, but adds that this needs to be verified in real operating conditions. He demonstrated a prototype version at the Hannover Fair earlier this year and is now planning to move to serial production and marketing of the belt.

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