Choosing the Correct Mounting for Your PTFE Bushing Design


Finding the proper bushing is important, but it’s not the only thing to consider when developing the best bearing system. Correct mounting is just as vital in order to allow the busing to properly function and for maximum efficiency.

The first step is defining the bushing’s primary function.

  • What job and how long does the bushing have to perform?
  • Is the bushing securely in place for adequate retention?
  • What tolerance needs to be held on the shaft and housing members?

Understanding these items is the key to choosing the right mount.

The Cost Factor

Cost constraints also play a part in deciding the type of mount used. Engineers and designers tend to gravitate toward a very common mounting configuration, such as press-fit. Although these are good mounts, and they can be the most economical, they also consume more assembly resources. If assembly automation is used, a more elaborate mount system might be a better consideration.

Post-Mount Bushing Effect

Applications with high loads tend to need greater press-in insertion force to maintain proper retention. Too much press during the mount will push the bushing to become over stressed and buckle the ring or in a case of a wrapped bushing, damage the split feature. To avoid taxing the bushing during this phase, contact the manufacturer to verify the correct press fit mounting parameters. The supplier’s catalog will have recommended assembly dimensions posted for most general mounting conditions.

When you’re choosing the proper mounting system for your bushings, don’t limit yourself to what’s available in a catalog. Custom mounting arrangements are available for application-specific designs. A bushing manufacturer can help you find exactly the right mount for the application, ensuring economical practice and efficiency.