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Product ReleaseAdjustable Length Shafting Series EZV by R+W America Print
 Line shafts with adjustable lengths up to 2150 Nm For many machine designers flexibility is increasingly important as companies seek to reduce components suppliers and space requirements for machinery and equipment. A good example would be the ability to use the same jack system for various platform sizes in lifting applications. For this purpose R+W has developed the unique EZV series of adjustable length line shafting. Manufactured from high strength precision aluminum tubes exhibiting a very high degree of straightness and lateral rigidity, these shafting systems can span lengths of up to 15 feet without an intermediate support bearing. On each end is a set of precision machined curved jaws with a pretensioned elastomer insert loaded between them. The coupling ends are removable so that only one additional component is required in order to adapt to an alternate bore diameter. One of two lengths of the tubing telescopes into the other, which uses a high strength keyless clamping collar to lock them together. An additional close fitting shoulder on the end of the smaller tube helps to support its own weight against the inside wall of the larger tube. As the tubing is cut to length in order to meet customer requirements, the available range of length varies, growing larger as the overall length dimension increases. Length requirements can be input on the R+W website for immediate calculation of possible ranges. These line shafting systems offer four different choices for the shore hardness of the elastomer insert and are made in sizes to accommodate a torque range from10 – 2150 Nm (88.5 – 19,027 in-lbs.) Bores are available with or without keyways and in English and metric sizes for a range of 5 – 80mm (1/4 – 3.125 in).
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R+W America Offers a Highly Flexible Servo Coupling
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R+W America Offers Stainless Steel Servo Insert Couplings
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R+W America Offers the BK5 Series Precision Press-Fit Servo Bellow Couplings for Testing Applications  In an effort to address increasing demands for productivity and functionality, R+W has developed the unique BK5 series of Bellow Couplings. This coupling features a keyed tapered hub design, allowing it to be quickly mounted and dismounted in the many situations where radial access to the coupling is limited or non-existent. The two coupling halves simply plug together axially, allowing the motor or gearbox to mate with the driven element automatically during mounting to the adapter flange. When the male coupling half is located on the drive shaft such that there will be a slight compression of the bellows during installation, this coupling is very highly torsionally rigid with zero backlash.
Conventional servo couplings are of a single piece design, with a radial tightening screw on each end. This requires the assembler to access the coupling through a hole in the adapter flange in order to lock it to a shaft.
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