Square-ended parallel key, tapped — From tangential force
Use this when the force on the key is known. From the width, the key length, the tapped-hole diameter, and the shear force it finds the area in shear and the shear stress. The shaft diameter and the torque are not needed. A square-ended parallel key keeps its square ends, so the key length is the effective length.
Input
Width
Key length
Nominal tap size
Shear force
Result
Area subject to shear
Shear stress
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