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Franklin Fibre Blog Post

Essential Design Practices for Composite Bearings and Bushings - blog post image
  • Franklin Fibre Lamitex
  • 10 Jan 2020

Essential Design Practices for Composite Bearings and Bushings

Composite materials have been the go-to choice for bearing and bushing applications for the better part of the last century. This is due to their self-lubricating wear properties and also because they are much lighter and easier to handle than their metal counterparts. When using composites for these applications, however, there are some essential practices that one must consider. These include: running clearances, press fit interference, ID close-in, post curing effects, wall thickness, surface finish and lubrication. To give a better understanding of what these are and how to apply them to your application, we described them in this paper.  

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Key characteristics of Lamitex Bearing grade Composites - blog post image
  • Franklin Fibre Lamitex
  • 21 Nov 2019

Key characteristics of Lamitex Bearing grade Composites

Limiting PV, Wear Factor and Coefficient of Friction

Limiting PV
Limiting PV is a description of the capability of a bearing material to resist the pressures and velocities of use. It is defined as the product of the unit load P (psi) based on the projected bearing surface area and the velocity of the shaft expressed in feet per minute. 

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Glass Transition (Tg) Temperatures - blog post image
  • Franklin Fibre Lamitex
  • 23 Sep 2019

Glass Transition (Tg) Temperatures

A glass transition temperature (Tg) describes the point at which a thermoset polymer changes its physical structure to a crystalline state and is an average of the temperature range those changes occurred. The actual glass transition temperature range depends upon the molecular structure of the material, the testing method, sample preparation, the cure schedule, and the degree of cure.  

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