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Bearing Materials

TriStar offers a wide range of bearing materials that are ideal for non-lubricated, high-load applications.

Saint Gobain Materials

TriStar is the exclusive partner of Saint Gobain for Rulon materials in North America. 

Materials and Fabrication

Our capabilities include component design, material selection, prototype, production, and manufacturing.

Materials Database

Use our interactive database to search for and compare over 450 materials.


Surface Modification

Learn how our Enhanced Materials Divison (EMD) modifies existing materials to meet specific needs.



Since 1982 we have been combining the skills of TriStar’s engineering team, our extensive product line, and our deep understanding of a broad range of industries to bring you solutions to your most challenging engineering needs.

Problems / Solutions

Explore the common causes of bearing failure and learn how advanced polymer and composite bearings can address them.

Application Case Studies

Enhanced Materials Division (EMD)

EMD  positions TriStar Plastics as the leading resource to solve your demanding engineering material challenges.

Enhanced Materials Division (EMD)


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Here are a few of our most popular online engineering tools - including our PV calc and material database (450+ materials).


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Technical Library

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Our library of free-to-download white papers focus on industry-based solutions, specific materials, bearing design, and more...

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Education Overview

About Us

TriStar Plastics Corp. provides engineering, custom fabrication and manufacturing of high-performance plastics and self-lubricating bearing materials. 


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Meldin® 3100 Series | Bearing Grade Polyetherimide 

Meldin® 3100



Meldin® 3100 bearing grade materials have excellent mechanical properties in tension and compression and maintain an impressive level of these attributes as operating temperatures increase. These properties add extreme strength and rigidity to component parts, even in narrow cross-section.

Meldin® 3100 components are manufactured by an injection molding process, which allows for close tolerances without the complication and cost of secondary machining.

Meldin® 3100 Series Grades


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Grade Description

Meldin® 3110

This bearing formulation has a very low coefficient of friction and is particularly well suited for use with soft mating surface materials such as aluminum and soft stainless steel.

Meldin® 3120

An excellent multi-purpose, wear resistant material that is suitable for bearing, thrust washer, and piston ring applications. It also has a low coefficient of thermal expansion.

Meldin® 3130

This grade provides good strength and stiffness in addition to excellent high velocity performance. Can be used with both hard and soft mating surfaces.

Meldin® 3140

An ideal thrust washer material and is well suited for thrust washer applications. Its high strength and stiffness, combined with its excellent heat dissipation properties, make it an excellent choice for high pressure loading applications.