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Bearing Basics: Facts Your Boss Hopes You Know about “Plain Polymer Bearings”

Plain Polymer Bearings

In this article, we are going to look at the different types of “plain” (or “plane”) polymer bearings.  Both spellings are correct, it’s only a matter of blogger preference.   “Plain polymer bearings” is preferred for this article.  Recall that the purpose of bearings in general is to:

  • support shafts,
  • reduce the friction between contacting surfaces,
  • and to constrain motion along one or more axes. 

There are different ways to classify plain bearings, and in this article we will look at one possible means of classification:  sleeved, flanged, and thrust bearings.   

plastic-bearing-chart

Want even more Bearing Basics? Check out these articles from the Advanced EMC Technologies blog:

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Breakout Torque for Ball Bearings

What Is Breakout Torque?ball-bearings-breakout-torque-Advanced-EMC

Breakout torque (also known as break out torque or break-out torque) refers to the amount of torque required to initiate relative rotation between a rotary shaft and a seal or bearing, and plays a key role in systems that involve oscillatory movement.  Breakout torque is a function of both the inertia of the mechanisms involved and static friction.  In ball bearings, you will often see it referred to as the starting torque, and there it refers specifically to the amount of torque required to start the rotation of one ring of the bearing.

For more articles, infographics, and information check out: 

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