Precision Ground Bars

Precision Ground Bars are high-quality steel bars that have been centerless ground to achieve exceptional surface finish, precise diameter tolerance, and perfect straightness. These bars are typically manufactured from cold drawn or hot rolled steel and then ground to extremely tight dimensional tolerances—often within microns.
Used in critical engineering applications where high precision, smooth finish, and close tolerances are essential, these bars are ideal for shafts, bearing components, pins, spindles, hydraulic rods, and precision tooling.
Key Features
- Ultra-Fine Surface Finish - Mirror-like finish, free from scale and surface imperfections—ideal for visual appeal and functional use.
- Tight Tolerances (H7, h8, h9, etc.) - Ground to precise dimensions, ensuring consistent diameter across the entire length.
- Exceptional Straightness - Ideal for high-speed and high-accuracy applications where minimal deflection is critical.
- High Roundness & Concentricity - Perfect for applications involving rotation or dynamic motion.
- Available in Various Grades - Manufactured in carbon steel, alloy steel, stainless steel, and EN series grades.
- Enhanced Mechanical Properties - High tensile strength and fatigue resistance due to cold working and grinding process.
- Ready-to-Use - Eliminates the need for further surface preparation, reducing production time and cost.