Rocker Arm Bearings
23 August 2018

Rocker arms were first invented in the 19th century and have changed little in function since then. Improvements have been made, however, in both efficiencies of operation and construction materials

On the application of the rocker arm valve system, roller bearings act as a rotating mechanism; it can reduce the friction effectively. That also means it can reduce the power loss and improve the efficiency of the engine.

Benefits of Rocker Arm Bearings

• Improved service life and reliability
• Reduced friction, noise, and vibration
• Reduced assembly costs
• Higher operating speed potential

There are numerous rocker arm bearing suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and South Korea.

NRB is one such company in India that provides integrated, high-performance rocker arm bearings that generate less friction while providing more mileage and longer service life.

NRB rocker arm bearings are designed to run directly on various type of surfaces such as cams, ramps, and sideways. In order to satisfy the operating conditions imposed on this type of bearing heavy radial loads usually accompanied by substantial and repeated shocks, the various NRB cam followers have these common advantages

• Heavy section outer ring of high strength steel hardened to 58-61.5 HRC
• Outer ring possessing no oil hole or lubrication groove, thus preventing the introduction of impurities into the bearing track
• Convex outer ring tolerating out-of parallelism of contact surfaces
• Oil holes situated under the needles enabling lubricant replenishment through the shaft.
• Full complement of needles providing maximum dynamic and static load capacities.

Although the use of a convex outer ring is advisable in many cases, rocker arm bearings are also available with a cylindrical outer ring for special applications or for use as radial bearings.

NRB is India’s premier bearing manufacturer. Built on world-class engineering and manufacturing infrastructure in India, NRB is recognized globally as the most trusted name in the design and production of customized friction solutions.

For more information visit: http://www.nrbbearings.com/