Rocker Arm

• Rocker Arm Meterials:

  High-Quality 20Cr Mo meterials in order to guarantee the longer service life

• Chomeplating Technology:

  The convex surface is chrome plated in order to significantly improve their service life.

• The convex sutface Roughness:

  The convex surface Roughness is within Ra0.2mm

• The convex surface Hardness:

  The convex surface Hardness is HRC61-63.and the depth of hardend layer is 0.5-0.8 mm

• Verticality of screw thread:

  Verticality of screw thread in valve adjustment screw is within 0.25degree , which can ensure bearing stress evenly when valve opens