At ES Precision Metals, our Centerless Grinding service delivers ultra-precise cylindrical components with exceptional surface finish and tight tolerances. Leveraging advanced equipment and expert techniques, we serve industries that demand the highest precision.

What Is Centerless Grinding?

Centerless grinding is a machining process in which a workpiece is supported by a blade and ground between a grinding wheel and a regulating wheel. Unlike conventional cylindrical grinding, the workpiece is not held between centers or in a chuck. This method enables high throughput and consistent precision for round bar stock.

  • High-precision outer diameter control
  • Consistent roundness and straightness along length
  • Superior surface finish and tight tolerances
  • Efficient for high-volume and small-diameter bars

Our Capabilities & Expertise

ES Precision Metals specializes in centerless grinding with capabilities tailored to demanding specifications. From aerospace shafts to medical-grade rods, we handle a broad spectrum of projects.

  • Tolerances as tight as ±0.0001 inches (±0.00254 mm)
  • Compatible with a wide range of materials: stainless steel, alloy steels, tool steels, etc.
  • Small to large lengths, various diameters
  • Batch production and prototyping
  • Integration with turning, polishing, straightening, and other finishing services

Our internal inspection, metrology, and quality systems—backed by ISO 9001 standards—ensure that each part meets your drawing requirements.

Industries & Applications

Precision ground bars and shafts are critical in many sectors, including:

  • Aerospace & defense
  • Medical devices & surgical instruments
  • Automotive & drivetrain systems
  • Industrial machinery & automation
  • Instrumentation, robotics, and sensors

Whether used as bearing shafts, guide rods, actuator shafts, or precision pins, parts processed via centerless grinding often form the backbone of high-performance systems.

Why ES Precision Metals?

Choosing ES Precision Metals means choosing a partner who understands precision inside and out. Our advantages include:

  • Decades of experience in precision bar and shaft manufacturing
  • State-of-the-art centerless grinding machines and tooling
  • Rigorous quality control and inspection protocols
  • Capability to handle custom, high-spec, and complex jobs
  • Responsive customer service and streamlined quoting process

Contact & Location

For inquiries, specifications, or to request a quote, please visit our
homepage or head to our
Centerless Grinding page.

Address:
6530 S. Laramie Ave
Bedford Park, IL 60638
USA