Roughness standard for guide pins
2024-10-18
The roughness standard for guide pins is usually Ra 6.3 μm, which applies to both end surfaces of the pins, and this level of roughness can be easily achieved by machining.
The roughness standard for guide pins is Ra 6.3μm, which applies to both end faces of the guide pin. According to the official answer of MISMI, this level of roughness is visible and can be felt by hand as a knife pattern, which belongs to rough machined surfaces.
Surface roughness has a significant impact on mechanical products. The rougher the surface, the smaller the effective contact area between mating surfaces, the greater the pressure, and the faster the wear. In addition, the rough surface will also affect the wear resistance of the parts, the stability of the fit properties, fatigue strength, corrosion resistance, sealing, contact stiffness and measurement accuracy.
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