KAJIAN EKSPERIMENTAL CACAT PADA BANTALAN BERDASARKAN LEVEL GETARAN

Abstract

Bearing defect is generally caused by problems in lubrication and assembly. Predictive maintenance is one of the best methods to identify its defect based on vibration level. In this paper, bearing defect is experimentally investigated by checking the vibration level occuring on bearing. Here, several types of bearing defect are considered, namely, defect on inner race, outer race, and ball bearing. Firts, vibration on damaged bearing is captured. Then, vibration level is compared to vibration level of intake bearing in order to know increasing vibration level. Moreover, captured vibration is also compared to ISO 2372 to check if bearing is still available or not. Level vibration is captured by using vibtation tester putting on bearing in both radial direction and axial direction. Each type of bearing defect is tested by varying shaft speed, that is 1000, 1500, and 2000 rpm. The result shows that vibration level increases by increasing shaft speed. Vibration level increases about 489% for bearing defect on inner race, 190% for bearing defect on outer race, and 108% for bearing defect on ball.