Case Study: Clutch Hub

Process: Conventional powder metallurgy
Density: 7.05 g/cm³
Tensile Strength: 80,000 psi
Yield Strength: 90,000 psi
Hardness: 92 HRB

End Use and Function

A clutch hub that functions as an actuator in power take off.

Clutch Hub
2012 Grand Prize Award Winner: Clutch Hub


Formed to a density of 7.05 g/cm³, the complex multi-level part replaced a machined design. Typical properties include an ultimate tensile strength of 80,000 psi, yield strength 90,000 psi, and a 92 HRB apparent hardness. The part is designed to withstand very high torque levels in service and the flange is strong enough to resist repetitive bending fatigue. The part is provided net shape in the as-sintered shot peened condition.


This net-shaped powder metallurgy part replaces a machined alternative and has resulted in:

  • Customer cost savings / economic value
  • A part capable of withstanding high toque loads in service.