Wear Behavior Investigations of Journal Bearing of an I.C. Engine Small End Connecting Rod for Brass, Gunmetal & Cast Nylon

In this study the wear behavior of brass, gun metal and Cast Nylon based Bushing bearing in wet conditions at a speed of 900 rpm . The wear test of these bearing was performed in new wear testing machine. The wear test were carried out under different loads like 10N, 20N, 30N and fixed speed of the motor at 900 rpm. The Lubricant used for the test is SAE#) and it is used for all test. The wear characteristics were determined with respect to load, shaft speed and time. The main objective of the study is to evaluate the wear rate of different journal bearings at different loading conditions. The main objective of this experimental study was to checked and compares conventional bearing materials with respect to new bearing material name Cast Nylon. It was found that because of co-efficient of friction, the power loss due to friction was five times in Brass and 2.5 Times in Gun Metal compare to Cast Nylon, comparing at the same speed, load and lubricant. Even density of the Brass and Gun Metal is approximately seven times heavier than the Cast Nylon. Therefore, we can replace conventional bearing made either from the Brass or Gunmetal by the new material name Cast Nylon and improve the performance of the engine bearing by way of reducing power loss and less induced temperature due to lower value of co-efficient of friction.