Parallel Keys with Round Ends
Parallel keys with round ends feature chamfers on both sides, allowing smoother insertion and better alignment. Compared to standard square-cut keys, the rounded-end design reduces assembly resistance and enhances installation accuracy. This type is widely used in shaft-to-hub connections where precise positioning and repeatable removal are required.
Product Features
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Chamfered round ends on both sides for easy insertion and assembly
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Stable design ensures accurate torque transmission between shaft and hub
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Custom dimensions and machining available based on drawings
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Compatible with JIS B 1301, DIN 6885, and related key standards
Material & Surface Treatment
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S45C (Carbon Steel)
Heat treatable to HRC20–45 (quenching & tempering) for enhanced torque capacity and wear resistance -
SUS304 (Stainless Steel)
Corrosion-resistant, suitable for food machinery, electronics, and automation equipment -
SUS316 (Stainless Steel)
Superior corrosion resistance for marine, medical, and harsh environments
Size Range
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Width (b): 3mm–32mm
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Height (h): 3mm–20mm
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Length (L): Standard or fully customized upon request
Applications
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Positioning and synchronization of hubs in power transmission systems
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Keyed connections for machine tool spindles and motor shafts
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Alignment and locking in automation systems and electric drive units
Customization & Notes
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Custom chamfer radius or angle available upon request
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Special materials, strength levels, and tolerances can be accommodated
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Recommended shaft/key fit: H7/h9 for precision mating