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30CM Parallel Key

(Full-Length Rectangular Key｜

JIS B 1301 / DIN 6885)

The 30CM Parallel Key is a torque-transmitting component used between a shaft and mechanical elements such as gears or pulleys. Manufactured to JIS B 1301 and DIN 6885 standards, it features a full rectangular profile with chamfered ends. This key effectively transmits torque and prevents rotation, making it one of the most common shaft-to-hub connection methods.

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300mm 平鍵（parallel key｜S45C 碳鋼），材質硬度佳，可依需求裁切使用，適用於軸槽鍵結與機械組裝
300mm 平鍵（parallel key｜SUS304 白鐵），具耐蝕性與良好穩定性，適用於戶外設備與精密傳動機構
300mm 平鍵（parallel key｜SUS316 白鐵），適用於高濕度、化工與醫療設備，具高等級防鏽性能

Product Features

  • Standard Compliance: JIS B 1301

  • Design: Full-length rectangular parallel key

  • Precision: Standard tolerance h9; custom tolerances available

  • Installation: Inserted into keyways on shaft and hub for torque transfer

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Material & Surface Treatment

  • S45C (Carbon Steel)
     Can be heat-treated to HRC 20–45 (quenching & tempering) for enhanced torque capacity and wear resistance.

  • SUS304 (Stainless Steel)
     Corrosion-resistant; ideal for food machinery, electronics, and automation systems.

  • SUS316 (Stainless Steel)
     Superior corrosion resistance; suitable for marine, medical, or high-humidity environments.

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Size Range

  • Width (b): 2mm–50mm

  • Height (h): 2mm–36mm

  • Length (L): Standard or custom lengths available upon request

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Applications

  • Torque transmission between shafts and mechanical hubs

  • Positioning for gears, pulleys, and sprockets

  • Drive systems in automation and precision equipment

  • Shaft-to-hub connections in industrial motors

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Customization & Notes

  • Customizable length, tolerance, and chamfer angles available

  • Small-batch sampling and in-stock supply supported

  • Recommended fit: H7/h9 for key and shaft pairing

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KEY SACLE
KEY SACLE
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