INTRODUCTION:

There are a variety of places where you can find composite bushings in a bicycle, including the headset, pedals, brake lever, front and back derailleurs, and the rear suspension, just to name a few.  In this article, we are going to look at the bushings used in rear hubs.

Many people wrongly assume that a polymer rear hub bushing, instead of a metal one, is a cheap substitution made by hub manufacturers.  Nothing could be further from the truth!  Let’s talk about how to select a proper material for a rear hub polymer bushing that will far outshine its metallic counterparts.

Here are some other great articles on polymer bushiings from the Advanced EMC Technologies Blog:

• Fluorolon Polymer Materials for Off-Road Bikes: Carbon Fiber Reinforced PPS
• Four Reasons Molded Plastic is Replacing Powdered Metal in Bushings and Thrust Washers
• Polymer Bushings Taking a Beating: Two Important Concepts behind the Wear and Tear

Read more