Schaeffler North America

 
 
 
 
 
 
Valve train & chain drive systems

Finger follower with hydraulic pivot element

Finger followers with hydraulic support elements are characterized by:

  • Finger follower contact with cam preferably by means of cam roller with needle roller bearing supports
  • Very low friction in valve train
  • Cylinder head easy to install
  • Oil can be easily fed to the cylinder head
  • Little design space required
  • Long operating life
  • Maintenance-free
  • Reduced CO2 emissions
  • Increased fuel efficiency

Sheet steel finger follower with cam roller and support element:

  • Formed from sheet steel
  • Height of valve flanges can be adjusted as required
  • With optional oil feed hole
  • With optional retaining bracket – simplifies installation of cylinder head
  • Very high surface load bearing area around the half-cup and valve contact face
  • Very cost-effective in appropriate quantities

Cast finger follower with cam roller and support element:

  • Complicated lever geometries possible
  • High load capacity
  • With optional oil feed hole
  • Very rigid – depending on design
  • Low mass moment of inertia – depending on design

Hydraulic support element:

  • Polygon ring prevents splitting
  • Supports high lateral forces