Development and Verification of Measuring Tester for Generated Axial Force at Constant Velocity Joints

*Dept. of Mechanical Engineering, Inha University*RD Revised September 28, 2012; Accepted October 4, 2012)Abstract − Generated Axial Force (GAF) due to internal friction at Constant Velocity (CV) joints is one of thecauses generating vibration problems such as shudder in vehicle. In this study, the GAF measuring tester is devel-oped to precisely measure GAF caused by internal friction in CV joints. As the developed tester can control tem-perature at joint, driving torque, angle of rotation and joint angles, actual driving conditions such as suddenacceleration can be applied to the machine. GAFs are measured and compared by using different types of greasein tripod housing. Also GAFs are measured for both new and used CV joints to be compared and analyzed. Thetest result shows the repeatability and consistency of the tester in terms of the different test conditions. By usingthe developed CV joint tester, friction performance of the joint can be evaluated by proposing the best CV jointsas well as greases generating the lowest GAF