Couplings: Stainless Steel Mesh Inserts Designed for High-Temp Environments

Couplings: Stainless Steel Mesh Inserts Designed for High-Temp Environments

12/03/2020
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Precision elastomer insert couplings offer technical advantages in a wide variety of power transmission applications. With the rigid jaw hubs machined from solid round bar stock, the torque density can be superior to that of almost any other type of backlash-free flexible coupling - depending on the stiffness of the elastomer insert used. Precision elastomer inserts are typically made from injection-molded polyurethane and are available in a variety of Shore hardness values, depending on the application requirements for vibration damping, flexibility and torsional stiffness. Softer materials, i.e. - those generally more suitable for damping and flexibility - also tend to be less thermally stable. This means that as temperatures increase, they soften, reducing the torque capacity of the coupling. This has historically left equipment designers to make compromises around high heat - either significantly upsizing the elastomer coupling, or changing to torsionally rigid metallic couplings that are suitable for a subset of dynamic drive applications, but lack the ability to absorb vibration and shock. To address this problem R+W  offers elastic coupling inserts from stainless steel mesh - mostly eliminating the temperature factors needed when sizing precision elastomer couplings and facilitating compact solutions - even in the presence of high heat.

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