What is a keyless locking device?

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Keyless Locking Devices (KLDs) are mechanical bushings used to connect power transmission components onto rotating shafts. Without the use of keyways, KLDs eliminate the problems associated with backlash including fretting, corroding, and wallowing. KLDs work with straight bores and generous tolerances, reducing component machining and complexity costs. In addition, KLDs are installed and removed using […]



What are the plating options for keyless locking devices?

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Climax Locking Assemblies and Keyless Rigid Couplings are typically housed unplated; however C192-Series Locking Assemblies are supplied with zinc plating. Additionally shrink discs are supplied with zinc plated outer rings. Upon request, Electroless Nickel or Armoloy® Thin Dense Chrome (TDC) platings are available on all keyless locking devices. If you are looking for other plating […]




Can keyless locking devices be mounted over an existing keyway?

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Climax Keyless Locking Devices can be installed over existing empty keyways. Both Locking Assemblies and Shrink Discs should be rotated to position inner ring radial slits approximately opposite the keyway and a locking screw directly over the keyway. Climax Keyless Locking Devices are not de-rated when installed over existing empty keyways.


Will a keyless locking device fit a non-standard shaft?

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In situations where the measured shaft diameter does not match any standard Climax Locking Assembly, perhaps as a result of damage or excessive wear, a simple adaptor sleeve can be fabricated to effectively “shim” the existing shaft to a standard nominal diameter. These adaptor sleeves can be slit lengthwise or left solid, with slit sleeves […]


Once plated do keyless locking devices maintain torque capacity?

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Climax Locking Assemblies and Keyless Rigid Couplings are stocked unplated, while shrink discs are supplied with zinc-plated outer rings. Upon request, all Climax KLDs can be quoted with either of two after-market plating options: industry-standard electroless Nickel or Armoloy® Thin Dense Chrome (TDC). Both plating solutions offer excellent corrosion resistance with no reduction of rated […]


What is the proper way to install keyless locking devices?

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When installing or removing a Keyless Locking Device, it is important to follow specific installation procedures. Written instructions are included with each KLD and can be downloaded from the product page. Instruction videos can be viewed from the product page as well.


Do you provide engineering assistance for keyless locking devices?

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Yes – we offer complete engineering assistance for our Keyless Locking Device product line. As KLDs exert high compression and expansions forces, our Hub Calculator online tool can assist to ensure that components mounted with Climax products are of adequate strength for your application. Our Hub Calculator can be accessed on any Keyless Locking Device […]