AIEngineeringTool

Keyway Shaft Design

Calculate key shear and bearing stress from transmitted torque.

Transmitted torque: 500 N·m
Live concept view — geometry scales with the entered design condition.

Calculate key shear and bearing stress from transmitted torque.

Design inputs

Enter known values using the units shown. Results and the live SVG view update immediately.

PRELIMINARY RESULT

Key shear stress20.41 MPa

Key bearing stress: 63.49 MPa

Key shear stress
20.41 MPa
Key bearing stress
63.49 MPa

Calculation detail

Formula: τkey = 2T / (d b L); σbearing = 4T / (d h L)

Key shear stress and projected bearing stress are calculated from torque and key geometry.

FORMULA VERIFICATION

Units, scope and reference

Reference: Shigley, Mechanical Engineering Design, circular-shaft torsion and elementary beam theory.

Internal unit basis: N, mm, MPa and SI rotational units converted explicitly. Outputs: tool-specific SI engineering units.

Valid conditions: Positive finite geometry, load and source-controlled property inputs.

Limitations: Preliminary elastic screening only; no code-compliance, detailed stress concentration or service spectrum design.