Surface grinding

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Overview
Norck provides precision CNC grinding services for metal components, focused on delivering tight dimensional tolerances and high-precision surface finishes for demanding industrial applications across aerospace, defense, robotics, automotive, electronics, energy and related sectors.

Services & Capabilities

• OD/ID Grinding: precision roundness and concentricity for shafts, bearings and cylindrical parts.
• Surface / Plane Grinding: flat-surface finishing with horizontal or vertical spindle options.
• Centerless Grinding: high-throughput, high-consistency production for cylindrical parts.
• Thread Grinding: thin‑wheel grinding for accurate thread geometry and repeatable results.
• Gear Grinding: sequential tooth finishing using fine rotating wheels for defined tooth geometry.
• Cylindrical (Revolving) Grinding: internal and external operations for centric and eccentric rotating parts (shafts, cylinders, disks, crankshafts, camshafts).
• Grind Deburring: precise removal of burrs and edge conditioning prior to final assembly or coating.
• Materials: steels, hardened alloys, ceramics, composites and other engineering metals.
• Inspection: in‑process checks and surface measurements to verify tolerances and roughness.

Key Advantages

• CNC control for high accuracy and repeatability: process capability to meet very tight tolerances (examples cited to ±1 µin / ±0.025 µm).
• Fine surface finishes: capabilities down to submicron Ra values (examples include Ra < 0.8 µm and references to Ra 2 µin ≈ 0.05 µm).
• Scalable production: from single-part prototypes to high-volume runs using centerless and automated grinding.
• Support for regulated and precision industries: aerospace, medical, defense and similar sectors requiring documented process control.

Typical Applications / Industries

• Aerospace
• Defense
• Robotics
• Automotive
• Industrial machinery
• Electronics
• Energy
• Hardware and consumer products

How It’s Performed

• Revolving/cylindrical grinding: workpiece is held and rotated while a grinding wheel removes a thin layer; coolant is supplied; suitable for concentric and eccentric rotating parts.
• Surface/plane grinding: used for flat surfaces and deburring with appropriate spindle orientation and fixture strategy.
• Thread grinding: thin-wheel polishing of thread flanks to achieve required geometry and finish.
• Gear grinding: tooth-by-tooth finishing using fine abrasive wheels to meet profile and surface specifications.

Online & On-Demand Manufacturing
Norck offers on-demand CNC grinding as part of a data-driven manufacturing platform that supports prototype to production volumes, integrating engineering review, process planning and quality controls to deliver custom metal parts.

Technical specifications

• Surface finish capability: typical surface grinding Ra < 0.8 µm; process references include values as low as Ra 2 µin (~0.05 µm).
• Dimensional/tolerance capability: CNC grinding examples reference tolerances down to ±1 µin (±0.025 µm) in specific applications.
• Supported grinding types: OD/ID, surface/plane, centerless, cylindrical (internal & external), thread grinding, gear grinding, grind deburring.
• Materials processed: steels, hardened alloys, ceramics, composites and other engineering materials.
• Inspection: in‑process checks and surface/metrology measurements documented as part of process control.
• Production modes: single-part prototyping to high-volume production (centerless and automated options for throughput).