Fewer types of Rocker arm have a bearing at the contact points to reduce wear and friction. Typically, the pushrod and the intake and exhaust valves are separated by the rocker's arm. The arm is propelled and pulled by this pushrod.
Fewer types of Rocker arm have a bearing at the contact points to reduce wear and friction. Typically, the pushrod and the intake and exhaust valves are separated by the rocker's arm. The arm is propelled and pulled by this pushrod.
