Floating shaft Calculator for EOT crane,#EOTCrane #MechanicalEngineering #FloatingShaft #ShaftDesign #MachineDesign

EOT Crane CT Drive Floating Shaft Calculator

Based on IS 3177 / IS 807 design principles for combined torsion and bending.

1. Input Parameters

Motor Power (P)

kW

Shaft Speed (N)

RPM

Shaft Span (L)

mm

Material Density (ρ)

kg/m³

Permissible Shear (τ_p)

N/mm²

Permissible Bending (σ_b_p)

N/mm²

Note: Permissible stresses (τ_p, σ_b_p) depend on the shaft material (e.g., C45 steel) and the crane's Mechanism Class (M1-M8) as per IS 807, Table 4. The defaults (67, 112) are typical for C45 / St 60 in Class 2.

2. Initial Sizing Results (Torsion Only)

Calculated Torque (T): 0

Min. Diameter (for Torsion): 0

This is the minimum diameter required to handle the motor's twisting force. Now, we must check if this diameter is safe when considering the bending from its own weight over the long span.

3. Combined Stress Safety Check

Enter your proposed shaft diameter. This should be equal to or (more likely) larger than the minimum diameter calculated above. Round up to a standard available size.

Proposed Diameter (d_prop)

mm

4. Final Check Results

Shaft Weight (W): 0

Bending Moment (M): 0

Actual Bending Stress (σ_b): 0

Actual Shear Stress (τ): 0

Safety Analysis (Rankine/Tresca)

Equivalent Bending Stress (σ_b_eq): 0

Equivalent Shear Stress (τ_eq): 0