R+W is now offering the EKZ intermediate spacers for use in high misalignment applications.
July 13, 2012—Servomax elastomer couplings from R+W feature a specially calibrated polyurethane insert, which is preloaded between precision machined driving jaws. In addition to their high torque density, low cost, and quick availability, they are used for vibration damping, shock absorption, and compensation for some small amounts of shaft misalignment. Occasionally, machine layouts and mounting arrangements simply do not allow for installers to achieve the alignment specifications of the standard series. This can cause stress to be transferred across the coupling and insert and onto adjacent shaft bearings, leading to premature wear. For these situations R+W is now offering the EKZ intermediate spacers, for use in high misalignment applications. Since parallel shaft misalignment is compensated for by an angular flex across each insert, the tolerance is actually increased by far more than double with the EKZ spacer, in some cases allowing for 4-5x more offset than with single insert designs. Even larger amounts of misalignment can be compensated for with a special convex tooth insert, which allows for additional rolling action as the coupling jaw pivots over the insert rather than causing it to flex. The standard EKZ product line ships from stock and is available in nine sizes, with torque ratings from 0.5 up to 2,150 Nm. They can fit any style of R+W Servomax elastomer jaw coupling of the corresponding size.
R+W America
Phone: (630) 521-9911
Email: info@rw-america.com
URL: http://www.rw-america.com/products/elastomer_couplings/ekz/index.php
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