Explanation of design and processing points that achieve both dimensional accuracy and strength of shafts.
Mating, coaxiality, and measures against thermal treatment distortion.
Shaft components are critical parts that perform important functions such as rotation axes and bearing fits, requiring a balance of dimensional accuracy and strength (durability). However, in actual field situations, issues can arise such as: - Fatigue failure due to fit variation - Eccentricity caused by poor coaxiality and runout - Bending due to heat treatment distortion - Stress concentration at steps and keyway areas This document organizes common challenges that occur in shaft processing and design, providing clear explanations on: - The relationship between dimensional accuracy and durability - Key points for setting CTQ (Critical To Quality) - Measurement items such as roundness, cylindricity, and coaxiality - Typical failure cases of shafts and their countermeasures Please use this as a reference when reviewing shaft design, processing, and quality management.
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What can be understood from this document: - Typical causes of shaft troubles - Design points that balance dimensional accuracy and strength - CTQ (Critical to Quality) for shafts - Management methods for roundness, cylindricity, coaxiality, etc. - Quality control for bearing fit shafts
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Intended use - Rotating axis - Bearing fitted shaft - Gear and pulley fixed shaft - Motor shaft
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We are a company that processes materials such as plastic, aluminum, brass, and SUS through cutting. Based at our Nisshin office and Vietnam factory, we have been responding to our customers' needs daily. We can handle anything from a wide variety of small-lot parts, such as production equipment machine components and prototype development products, to mass-produced parts. Additionally, even if you only have the physical item and no drawings, we can measure, design, and manufacture in-house. If you have any concerns regarding material selection or proposals for cost-reducing shapes, please feel free to consult with us!