DESIGN & ANALYSIS OF NEEDLE ROLLER BEARING AT GUDGEON PIN OF GINNING MACHINE

P.A.Chandak, A.D.Thakare, S.P.Untawale, G.R.Nakhale

Abstract: Needle roller bearings have high load carrying capacity although it have small cylindrical roller having low cross section, thus it used in application where space limitation is the important factor along with high dynamic loading capacity. So in ginning machine where space is limited for driving the mechanism a Needle roller bearing having diameter of 20 mm is used in between connecting rod and head pin to give the relative motion between parts. As the continuous impacting of repetitive load on bearing, it fails with in shorter period of time if proper lubricant is not supplied by grease gun after 2 to 3 hours. While bearing are considered under observation it is found that bearing are fail due to brinnelling. So design and analysis of needle roller bearing is vital to calculate the life of bearing and to make sure whether this bearing is suitable or not. So it becomes mandatory in designing to calculate radial load applied on bearing as the bearing is rolling contact bearing, from this life of the bearing can be calculated and finally analysis by ANSYS software is done to find the result so that we can conclude for bearing.

Keywords: brinneling, connecting rod, dynamic load capacity, head pin, life, radial load, repetitive load.

DOI: https://doi.org/10.15623/ijret.2015.0411007