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


