Lightweight Composite Bearings: Up to 5x Lighter Than Steel
Weight Matters in Industrial Design
Why Weight Matters in Bearing Design
Every gram of unsprung or rotating mass affects performance. In aerospace and drone applications, weight reduction extends flight time and payload capacity. In automotive and racing, it improves acceleration and fuel or energy efficiency. In marine applications, reduced weight aloft improves stability and speed.
Comparing Bearing Weight by Material
| Material | Relatice Weight vs. Steel | Typical Use Case |
|---|---|---|
| Steel/Bronze | Baseline | Heavy static load, low speed |
| Composite (Ultracomp) | Up to 5X lighter | High-load, weight-sensitive structural applications |
| Engineered plastic (Rulon, TriSteel-lined) | Up to 5x lighter | Moderate load, corrosion or lubrication-sensitive applications |
Weight Reduction Without Sacrificing Strength
A common misconception is that lighter means weaker. TriStar's lightweight composite materials are engineered for high load and PV (pressure-velocity) performance, in many cases matching or exceeding metal bearings in wear life while weighing a fraction as much. This is why lightweight composite bearings appear in structural aerospace components, not just non-critical parts.
Read more about the benefits of lightweight composite materials.
FAQ
A: In many applications, yes. Composite bearing materials are engineered for specific load and PV limits and, when matched correctly to an application, can meet or exceed metal performance while weighing significantly less.
A: Up to 5 times lighter, depending on the specific composite or engineered plastic used.
A: Aerospace, drone manufacturing, automotive and racing, and marine vessel design, anywhere reducing mass improves speed, efficiency, or payload capacity.
Designing a weight-sensitive component?
Ask a TriStar engineer which composite material meets your load requirements at the lowest possible weight.







