Preliminary spur-gear, parallel-shaft gearbox and shaft calculations
Design the shaft using gearbox output torque, speed, and mounting limits.
Align applied torque and speed with gearbox results.
Confirm the shaft fits gearbox bore and key interface.
Bearings and loads aligned to gearbox housing.
Static analysis evaluates the system under maximum load conditions.
Max stress: 85.3 MPa (Allowable: 210 MPa)
Deflection: 0.12 mm (Allowable: 0.25 mm)
Safety margin: 146%
Max torsional stress: 32.5 MPa (Allowable: 85 MPa)
Max bending stress: 45.8 MPa (Allowable: 120 MPa)
Critical speed margin: 3.5× operating speed
Bearing life (L10): 28,500 hours
Dynamic load rating: 15.2 kN (Required: 12.8 kN)
Static load rating: 8.5 kN (Required: 7.2 kN)