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E-Bike Drive Gear

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SHW Automotive GmbH
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E-Bike Drive Gear
Benefit: Cost Saving, Improved Performance, Weight Saving
Main Forming Process: Conventional Processing
End Use Sector: Automotive
Material: Ferrous


This component is the final gear in a transmission of an electric bike drive unit.

The product, which was designed specifically as a powder metal solution, integrates a number of functional properties within one single component:

  • Transmission of torque from outer teeth to output hub
  • Precise inner bore for needle roller bearing
  • Complex geometric features for accommodating damping rubber elements and the direction sensor module
  • Distinctly reduced NVH emissions compared to previous drive generation for pleasant drivers' experience by applying optimized gear profile
  • High strength material for demanding torque transfer capability and extended wear resistance
  • 10% less weight compared to a gear from wrought steel
  • Approx. 50% cost reduction compared to a steel solution.

Component Specification

Density (g/cm3): 7.0
Tensile Strength (MPa): 800
Hardness (HRC): 62 (at teeth surface)

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