Camshafts

WHAT, HOW, WHY

The camshaft, manufactured both for the specific world of racing and for mass production, is the heart of the engine and the company's flagship product.
Alongside the processing of raw material from mould steel, there is also processing from bar stock that allows much shorter delivery times, necessary to meet the needs of clients that race at the highest levels. The choice of the materials, their treatment cycle and the finishing of the pieces: each manufacturing stage is aimed at studying the highest performing solution that meets the client’s needs; the shaft profiles are measured, controlled and improved using a sophisticated and well-known measuring machine: the Adcole.
We are also able to copper-plate the pieces; that is, a pre-heat treatment protection process that we can also use on components for vintage cars.

TECHNICAL DATA

  • Length from 40 mm to 1000 mm
  • Radius from 0 to 160 mm
  • Maximum achievable concavity radius 50 mm
  • Materials:
    - Bar stock and mould steels;
    - Special Aubert e Duval and Bohler Steels;
    - Grey cast iron;
    - Nodular cast iron;
    - Controlled cooling chilled cast iron.
  • Heat treatments:
    - Hardening;
    - Vacuum hardening;
    - Carburising;
    - Gas nitriding;
    - Ion nitriding.

APPLICATIONS OF DLC

  • Components subject to sliding and high abrasive wear
  • Camshafts, tappets, pin pistons, bucket tappets

FUNCTIONS

Camshafts enable the valves in the 4-stroke engine to open and are of vital importance for the performance of the engines.
The camshaft is an extremely important element used to mechanically increase the power of an engine. The camshaft is present only in 4-stroke petrol (controlled ignition) and diesel (spontaneous ignition) engines and in some uni-directional 2-stroke engines. It normally works in contact with tappets, rocker arms and bucket tappets.
In this respect, Gentilini has developed a coating system for the racing sector, and manufactured it in collaboration with a specialised company, that improves sliding between the camshaft, rocker arms, bucket tappets, tappets, etc. This coating system is called DLC.

ADVANTAGES OF DLC

  • Surface hardness from 1800 to 2600 HV
  • Friction and sliding coefficient around 8 times lower than that of Steel/Steel
  • This reduced wear improves performance and increases the life of the components
  • It meets the requirements of the intracutaneous reactivity test in accordance with standard ISO 10993-10:2010
  • ALL ENGINE MANUFACTURERS ARE MOVING TOWARDS THIS TYPE OF COATING TO INCREASE PERFORMANCE AND REDUCE CONSUMPTION AND EMISSIONS.



MARKETS OF INTEREST





Camshafts

WHAT, HOW, WHY

The camshaft, manufactured both for the specific world of racing and for mass production, is the heart of the engine and the company's flagship product.
Alongside the processing of raw material from mould steel, there is also processing from bar stock that allows much shorter delivery times, necessary to meet the needs of clients that race at the highest levels. The choice of the materials, their treatment cycle and the finishing of the pieces: each manufacturing stage is aimed at studying the highest performing solution that meets the client’s needs; the shaft profiles are measured, controlled and improved using a sophisticated and well-known measuring machine: the Adcole.
We are also able to copper-plate the pieces; that is, a pre-heat treatment protection process that we can also use on components for vintage cars.

TECHNICAL DATA

  • Length from 40 mm to 1000 mm
  • Radius from 0 to 160 mm
  • Maximum achievable concavity radius 50 mm
  • Materials:
    - Bar stock and mould steels;
    - Special Aubert e Duval and Bohler Steels;
    - Grey cast iron;
    - Nodular cast iron;
    - Controlled cooling chilled cast iron.
  • Heat treatments:
    - Hardening;
    - Vacuum hardening;
    - Carburising;
    - Gas nitriding;
    - Ion nitriding.

APPLICATIONS OF DLC

  • Components subject to sliding and high abrasive wear
  • Camshafts, tappets, pin pistons, bucket tappets

FUNCTIONS

Camshafts enable the valves in the 4-stroke engine to open and are of vital importance for the performance of the engines.
The camshaft is an extremely important element used to mechanically increase the power of an engine. The camshaft is present only in 4-stroke petrol (controlled ignition) and diesel (spontaneous ignition) engines and in some uni-directional 2-stroke engines. It normally works in contact with tappets, rocker arms and bucket tappets.
In this respect, Gentilini has developed a coating system for the racing sector, and manufactured it in collaboration with a specialised company, that improves sliding between the camshaft, rocker arms, bucket tappets, tappets, etc. This coating system is called DLC.

ADVANTAGES OF DLC

  • Surface hardness from 1800 to 2600 HV
  • Friction and sliding coefficient around 8 times lower than that of Steel/Steel
  • This reduced wear improves performance and increases the life of the components
  • It meets the requirements of the intracutaneous reactivity test in accordance with standard ISO 10993-10:2010
  • ALL ENGINE MANUFACTURERS ARE MOVING TOWARDS THIS TYPE OF COATING TO INCREASE PERFORMANCE AND REDUCE CONSUMPTION AND EMISSIONS.



MARKETS OF INTEREST




How we work


Since 2008 the group has been developing new components for leading companies in the two-wheeler sector and continuing to develop and expand its interests more and more.
The close-knit team of technicians and engineers collaborates in synergy with industry experts, to find valid and concrete solutions in every area.
In making our camshafts, the search for the best raw materials is accompanied by a careful selection and control of treatments (especially necessary for the nautical market)

WE SHAPE YOUR COMPONENTS

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