Maintenance-free, flexible couplings

4th Quarter 2015 Shaft power components

The highly flexible CT-P coupling from Voith offers the steel industry multiple benefits. It does not have the backlash forces customary with gear couplings and thus protects the connected driveline components. It is also virtually wear-free and can be flexibly integrated into the driveline.

Roller conveyor drives or pilger rolling mills are typical areas of application. Usually gear couplings are used in these cases; but these present several disadvantages as they require regular lubrication and maintenance. If a gear coupling is lubricated too late or not at all, wear begins to increase dramatically and it may fail completely, necessitating a total shutdown of the system.

The CT-P coupling completely eliminates these disadvantages, requiring no lubrication or maintenance and operating around the clock. Furthermore it usually has a longer lifetime than the units connected to it as the integrated rubber elements prevent metal-to-metal contact. At the same time, they dampen the forces of inertia occurring when drives are switched off. It can also resist heat up to an ambienttemperature of 130°C so can be used in steel mills.

CT-P couplings are designed for torques of up to 200 000 Nm and speeds of up to 7200 rpm. They are usually installed directly between the electric motor and the roller conveyor. This demonstrates the high flexibility of the coupling, which easily allows 1:1 matching with the shaft or hub connections.

For more information contact Terry-Lynn McIntosh, Voith Turbo, +27 (0)11 418 4036, terry.mcintosh@voith.com, www.voith.com

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