SAE 660 / W7 Bearing Bronze
SAE 660 (C93200) Bronze: The Global Bearing & Bushing Standard. High-leaded tin bronze for superior emergency lubrication and wear life.

SAE 660 / W7 Bearing Bronze
SAE 660 is the most widely recognized bearing bronze in the world. It provides a perfect balance of hardness, strength, and "embeddability"—the ability to swallow foreign particles (like grit) without scoring the mating shaft. It is the "workhorse" for continuous-service mechanical assemblies.
Certified Quality Assurance
At Progressive Metal Manufacturing, we provide high-performance SAE 660 / W7 Continuous Cast Bronze backed by a commitment to technical precision. Our operations are governed by a robust ISO 9001 certified quality management system, ensuring that every delivery adheres to strict material standards. To guarantee total transparency and material integrity, all grades are available with a Certificate of Conformity upon request. We prioritize traceability and consistency, providing our clients with the documentation and reliability necessary for high-stakes engineering and manufacturing projects.
Industrial Applications & Versatility
The exceptional anti-frictional properties and wear resistance of SAE 660 make it the "standard" choice for a vast array of mechanical environments.
This versatile leaded tin bronze is the premier selection for components requiring excellent machining characteristics and durability under medium loads.
Typical applications for our bronze stock include the manufacturing of general-purpose bushes, bearings, and thrust washers.
Furthermore, its reliability makes it ideal for fuel and water pump bushings, valve and slide seating rings, and automotive fittings.
From hydraulics to heavy-duty bearings for lifting tackle, Progressive Metal Manufacturing delivers the foundational strength your project demands.
Precision Supply & Custom Specifications
We offer a flexible procurement model designed to meet the exact tolerances of your production line.
As premier stockholders, we maintain an extensive inventory of SAE 660 bronze in both Round Bar and Hollow Bar / Tube profiles.
Our facility provides precision sawing services, delivering everything from singular custom-cut prototypes to high-volume material runs tailored to your blueprints.
Whether you require full-length stock or bespoke sawn sections, our materials are ready for immediate integration into your workflow to minimize machining time and waste.
.png)



