* bwaairtools Using the face of a clamp-type collar as a bearing surface in a rotary application. The saw slot can quickly abrade the surface rotating against it.Doug/Zero-Max: Improper tightening of multiple screws can cause bushing slippage. Axial movement of the bushing on the shaft when tightening can cause some alignment loss. Some connections feature a single tightening screw flint can be torqued if necessary for proper clamping force.Best practicesWhat are considered "best practices" when designing with locking devices?Carl/Ringfeder: Aside from the obvious design parameters, engineers should ask the following questions:* What are the application requirements of the device?* Is the locking device only used to simplify installation or is adjustment, removal, or maintenance necessary?

* bwaairtools Using the face of a clamp-type collar as a bearing surface in a rotary application. The saw slot can quickly abrade the surface rotating against it.Doug/Zero-Max: Improper tightening of multiple screws can cause bushing slippage. Axial movement of the bushing on the shaft when tightening can cause some alignment loss. Some connections feature a single tightening screw flint can be torqued if necessary for proper clamping force.Best practicesWhat are considered "best practices" when designing with locking devices?Carl/Ringfeder: Aside from the obvious design parameters, engineers should ask the following questions:* What are the application requirements of the device?* Is the locking device only used to simplify installation or is adjustment, removal, or maintenance necessary?

Warren/Fenner: Failure to take into consideration the compression forces and outward forces generated when using locking devices. The mounted component must have sufficient wall thickness to withstand the outward forces or it will burst. Likewise when mounting on hollow-shaft or tubular applications. Inadequate wall thickness results in the hollow shaft or tube being compressed and distorted. Many manufacturers publish a formula or table that lets designers calculate the required wall thickness.Vic/Rimtec: Having too much clearance bwaairtools between the shaft and hub is often a problem; you can''t clamp enough to transmit rated torque. Overtightening the screws is also common, causing tapers to lock when they''re supposed to disassemble. This is where locking devices with push-off screws come in handy.