
Bearings, Bushings, Liners & Chain Guides
Global Polymer’s compression-molded UHMW-PE components are tailored to critical agricultural machine functions:
- Bearings and Bushings: With high load-bearing capacity and low friction, UHMW-PE bushings outperform traditional metal components in seeder arms, auger pivots, and rotating shafts—without the need for lubrication.
- Liners and Wear Pads: Bed liners, chute liners, and fertilizer hopper linings resist abrasion and sticking, even with damp or sticky materials like manure, silage, or seed coatings.
- Chain Guides and Sprockets: These components support precision chain alignment in harvesting and conveyor systems while minimizing energy loss and chain wear.
Whether it’s an OEM spec part or a custom retrofit, our team can mold to exact dimensions and eliminate the need for extensive machining.
Reduce Equipment Downtime in Dusty, Abrasive Environments
Agricultural operations are notorious for environments filled with dust, grit, crop residue, and particulate-laden air. These factors degrade equipment surfaces rapidly—leading to more frequent part replacements, machine downtime, and expensive service calls.
UHMW-PE resists abrasion in grain elevators, combines, and livestock feeders, allowing your equipment to run longer between maintenance cycles. Its self-lubricating nature helps prevent material buildup and reduces friction between sliding parts.
Typical Applications in Ag Settings:
- Combine header skid shoes and chain wear pads
- Grain conveyor liners
- Screw conveyor hanger bearings
- Silage blower paddles
- Manure spreader skid shoes and seals

Extend Service Life for High-Impact Applications
Field conditions are unpredictable, and impacts are inevitable—rocks, clumps of earth, and crop residue can put extreme stress on parts. UHMW-PE absorbs energy better than traditional plastics and many metals, reducing the risk of cracking or deformation under load.
Its high impact strength makes it ideal for:
- Harvester throat plates and guides
- Tillage tool bushings
- PTO shields and guard components
- Feed bin liners and discharge chutes
Because UHMW-PE doesn’t crack under pressure, it keeps systems running longer and cuts down on emergency part replacements during peak planting or harvest windows.
Custom Fit Parts for OEM Ag Systems
We collaborate directly with agricultural OEMs and engineers to mold parts to your precise specifications. Whether replacing outdated materials or designing new assemblies, Global Polymer’s compression-molding process produces net shape components that require minimal machining and offer consistent performance.
- No minimum order quantities
- Design-for-manufacture support
- Rapid tooling and prototyping for custom parts
Common parts we supply include:
- Chain guides for corn heads
- Seed planter liners
- Scraper blades for rotary spreaders
- Custom sprockets, flanges, and guide rails
We understand the complexity and variability of ag systems and are here to engineer a part that fits your machine—and your business model.
Request a Quote for High-Performance UHMW-PE Parts
Don’t settle for short-lived, off-the-shelf components. Choose UHMW-PE parts engineered to perform in tough agricultural environments. Whether you need a high-volume production run or a one-off replacement, Global Polymer is ready to deliver.