CNC machining of shafts and workpieces requires high dimensional accuracy and appropriate geometric tolerances. Particularly important is concentricity, on which the smooth and trouble-free operation of rotating components depends. Metal grinding plays a key role in achieving the desired results, thanks to which perfectly smooth surfaces can be achieved and radial and overall runout can be reduced.
The importance of concentricity in CNC machining.
Coaxiality is a parameter that determines whether the axis of rotation of the workpiece coincides with the axis of the reference system along its entire length. Even slight deviations can lead to increased vibration, faster bearing wear, trouble during assembly or interference with the entire system.
For shafts used for power transmission or serving as bearing elements, it is important to keep radial runout and total runout within strict limits. Precision metal grinding makes it possible to control this aspect with accuracy even to hundredths or thousandths of a millimeter.
The role of metal grinding in achieving perfect tolerances.
Metal grinding in the CNC machining process performs a finishing function, ensuring proper surface properties and shape. As a result, roughness is reduced, and the machining itself takes less time compared to traditional methods, since numerical control enables repetitive, tightly controlled tool movements.
- The grinding of metal surfaces eliminates any roughness created in previous machining stages.
- The simultaneous maintenance of near-zero radial and total runout values translates into high quality and long component life.
Okamoto 300 series grinder (model 350) – characteristics of our CNC machine tool.
As an example of a machine that proves itself in precision machining, we can cite Okamoto’s 300 series grinder in the 350 model, which allows the machining of workpieces with diameters up to 350 mm. The machine’s design allows it to hold a workpiece of up to about 1,300 mm between the claws, giving it a wide range of applications.
Thanks to a spindle with a speed range of 10 to 500 rpm, it is possible to adapt the working parameters to the type of material and the intended machining purpose – from precise finishing to efficient removal of overfeeds. A minimum set feed rate of 0.001 mm ensures high control over roughness and compliance with required tolerances.
The robust design reduces vibration, resulting in better process stability. It also reduces radial runout and total runout and enables perfect concentricity. Efficient cooling and contamination separation systems help sustain consistent conditions during machining, so results remain repeatable.
Conclusion.
In CNC machining of shafts and other rotating components, it is important to strive for tight tolerances and concentricity. Metal grinding, especially grinding of metal surfaces with CNC machines, guarantees precision that is crucial in industries where even micrometer deviations can carry serious consequences. Grinding machines such as the Okamoto 350 make it possible to work with a wide range of workpieces while ensuring a high level of process control, stable conditions and low surface roughness.
As a result, the finished products have excellent performance qualities: they are resistant to vibration, wear more slowly and require less frequent service intervention. At SIM Gdynia, the above-discussed approach influences the satisfaction of our customers and long-term cooperation based on quality and trust.If you are looking for a trusted mechanical components contractor, we warmly invite you to fill out our contact form: https://www.simgdynia.eu/kontakt/
