Schaeffler Automotive Aftermarket GmbH & Co. oHG · Germany

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  • Drive Train
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    • Belt drive systems
    • Chain drive systems
    • Valve train systems
       
      • Components with hydraulic valve lash adjustment
      • Components with mechanical valve lash setting
         
        • Mechanical tappet
        • Mechanical roller type rocker arm
         
    • Variable valve train systems
    • Camshaft phasing systems
     
  • Chassis systems
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Mechanical tappet

Mechanical tappet with top shim

• Loosely inserted in tappet body
• Supplied in various thicknesses
• Material and heat treatment can be selected as required

Valve lash is adjusted by means of the shim thickness.

Mechanical tappet with bottom shim

• Defined lash between cam base circle and tappet body outside surface - due to shim thickness
• Very low tappet mass > reduced valve spring forces and thus frictional power
• Large contact surface for cam

Mechanical tappet with graded base thickness

Shim:

• Valve lash adjusted by means of the tappet base thickness
• Very low tappet mass
• Reduced valve spring forces and thus frictional power
• Large contact surface for cam
• Very economical manufacture feasible

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