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The name "EUPEX" comes from ancient Greek and means “well connected.” The N-Eupex coupling range connect rotating components as part of efficient drivetrains. There have been a number of recent developments of the N-Eupex range which include:
Torque limiter for more safety in the drivetrain
The new N-EUPEX ERN coupling is equipped with a torque limiter, which provides even more security in the drivetrain in many applications. Eliminates the need to replace potentially expensive spare parts, reducing long downtimes of the drivetrain.
Clamping elements as a practical shaft-hub connection
Shaft connected to the coupling hub via a clamping connection without a feather key.
In contrast to the feather key connection, the usual heating of the hub parts before tightening is not required. The hubs are very easy to remove during disassembly after the clamping screws of the clamping elements have been loosened, restoring sufficient play in the connection between the shaft and coupling. No connecting machine components have to be moved, which reducing the time required and machine downtime. Additional tools such as mechanical three-arm pullers are not required.
Double-cardanic coupling as “short version”
Following the launch of the N-EUPEX DK (see below) as a double-cardanic coupling type, the DKS type is the shortest possible double-cardanic solution on the market.
Shortened overall length of the double-cardanic coupling and reduced costs. Making it easier to replace single-joint couplings with the double-cardanic design in problematic drives.
Double-cardanic coupling N-EUPEX DK
The double-cardanic design compensates for not only a greater range of shaft angle offsets, but also a considerably greater radial offset so that shaft ends can be connected in a manner that offers the drive greater protection. With this two-joint version, compensation for radial offset that occurs between the shaft ends is enabled by a corresponding angle of inclination in the elastomer joints. This increases the range of possible radial offset by more than a multiple of four. Depending on the coupling length and size, it enables compensation for a radial offset of up to 3 millimetres. The coupling type "DK" makes use of not just one, but two series of elastomer elements, which guarantees increased damping over the entire drive train.
Split hub
With the split hub, assembly and disassembly are simple and time saving, requiring only that the two half shells be connected or separated. The coupled drive and work machines do not have to be moved.
The half shells in the parallel keyway are split. When the clamping screws are tightened, the half shells are centred above the parallel key, which guarantees that the halves are positioned properly. The keyed joint is constructed so that there is no backlash.
For further information, please visit our website
www.jbj.co.uk/n-eupex.html
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Content published by Professional Engineering does not necessarily represent the views of the Institution of Mechanical Engineers.