* How important is run-out of the installed component?* What are the tolerance or precision requirements of the specific tool industry you are in?Keith/U.S. Tsubaki: Proper selection requires more than calculating the required supply torque. Centering aor requirements, tool ease of installation, and the forces the unit applies to the shaft and hub also apply.Jeff/KTR: Precisely determine the supply hub location required for the desired application. Evaluate the radial and axial position and the amount of space available for the locking device, and then select the type of device needed.Andrew/Whittet-Higgins: Choose the right device, taking into consideration aor static and dynamic loading, assembly, maintenance, misalignment, price of the full assembly, and availability.Vic/Rimtec: Avoiding keyways improves shaft maintenance. Using keyless clamping locking devices or shrink discs makes it easy to change parts.

* How important is run-out of the installed component?* What are the tolerance or precision requirements of the specific tool industry you are in?Keith/U.S. Tsubaki: Proper selection requires more than calculating the required supply torque. Centering aor requirements, tool ease of installation, and the forces the unit applies to the shaft and hub also apply.Jeff/KTR: Precisely determine the supply hub location required for the desired application. Evaluate the radial and axial position and the amount of space available for the locking device, and then select the type of device needed.Andrew/Whittet-Higgins: Choose the right device, taking into consideration aor static and dynamic loading, assembly, maintenance, misalignment, price of the full assembly, and availability.Vic/Rimtec: Avoiding keyways improves shaft maintenance. Using keyless clamping locking devices or shrink discs makes it easy to change parts.

Andrew/Whittet-Higgins: One pitfall is not allowing the needed spacing in the assembly housing. If the components are not locked together properly, the machinery can fail prematurely. A second pitfall is assuming that a particular torque measurement for one component is correct for the entire assembly.Jim/Stafford: * Using a set-screw collar on tool a hardened shaft. The screw does not "set," and holding power is greatly diminished.* Using a set-screw collar on thin-wall tubing, which can permanently distort the tubing.* Specifying too thin a width on a clamp-type collar, leaving it too weak to resist distortion when the clamp-screw is tightened.* Specifying too thin a clamp-slot supply on threaded shaft collars where the collar must flex more in order to adequately clamp onto the threaded shaft.