mining shovel

Reduce maintenance in high contamination joints

miningEach project has its own set of unique challenges, sources of delay, and scheduling constraints. Polygon Company can be a source of certainty when it comes to equipment reliability by eliminating the need for maintenance. Operators can focus on productivity instead of trying to remember if they greased that hard to reach area or checked the oil reservoir. Polygon composite bearings keep assets producing while eliminating some of the labor cost associated with frequent preventative maintenance.

Maintenance Free, Never Needs Greasing

PolyLube composite bearings are used in many pieces of mining equipment. Many of these joints are unsealed and all of them run dry. With the PolyLube line of products, customers can worry about project timeline, equipment logistics, and project bids rather than number of hours since the last round of grease, who can I get to do the greasing, and is my worker reliable enough to find an hit the hard to reach joints.

Learn how Polygon Company uses a self-lubricated liner with a high strength backing to eliminate the need for lubrication:

Read more

Grease Traps Dirt

A metal bearing would become scored and damaged without regular grease flushing. How does PolyLube avoid this? By eliminating grease, Polygon's bearings avoid this contamination trap.

Read more

Sample Applications

  • Electric Rope Shovel
  • Mining Trucks

mining truck mining electric rope shovel

Recommended Bearings

Here are our most commonly used bearings for these applications. A Polygon sales engineer will always guide your choice of bearing.

polylube bushings mrpPolyLube MRP bearings are greaseless and maintenance-free.

PolyLube MRP bearings

polylube bushings ewsPolyLube EWS bearings are also greaseless and feature 300% extended wear life compared to MRP bearings for critical applications.

PolyLube EWS bearings


Any ratings are typical for design purposes. Your design parameters may affect final ratings. Consult with a Polygon sales engineer for guidance. Final testing and approval is the customer's responsibility for their application. This information is derived from our testing and published data. There is no assurance of these properties, or warranty provided that these products are suitable for any particular purpose or operational situation.

Polygon certifies that their product will be free from material defect. Polygon will not accept any liability for loss, damages, or costs from use or misuse of our products.

Specifications are subject to change, and may be affected by our continual process of improvement. Changes may be made without prior announcement.