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A combined misalignment coupling and slip clutch

20 July 2014

The Oldham clutch-coupling from Huco Dynatork provides system protection and misalignment compensation in one, compact device.

It combines two, time-served Huco Dynatork designs, the first of which is the Oldham coupling that has been an important part of the company’s range since the mid-1980s.

The Huco Dynatork lateral offset coupling Oldham is precision engineered throughout and comprises two hubs with inward facing tenons. These engage with matching slots spaced at 90° in a central lightweight torque disc. As the coupling rotates, the disc compensates for any parallel shaft offset by sliding the commensurate distance along each tenon in turn.

Quality of motion is a function of the carefully controlled relationship between the tenons and the torque disc. The disc is precision moulded from high grade engineering polymers and, being easily replaced at low cost, is the sacrificial element in the drive train; radiation and heat resistant torque discs are also available.

If severely overloaded the torque disc will break, acting as a mechanical fuse, thereby protecting associated equipment from damage. A replacement torque disc quickly restores the drive without the need to dismantle the drive system.

The new Huco Dynatork clutch-coupling marries the ability of the Oldham to compensate for angular and radial misalignment with a proven slip clutch mechanism that maintains constant tension with no sudden shocks to damage fragile products. As well as tension control the clutch provides repeatable cushioned torque for protection during overload.

Seven sizes complete this new range with bores from 12mm to 30mm and torque up to 56Nm. Fixed torque versions are also available to order.

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