Cam Follower and Track Roller - Stud Type，one type of bearing, generally used for automotive camshafts (the shaft that controls the opening and closing of the piston engine valves). The axial clearance of the camshaft should comply with the relevant regulations. The inspection method is as shown in the drawing. It can be measured by the thickness gauge, and the thickness difference between the thrust flange and the spacer can also be directly measured. When the thrust flange wear causes the axial clearance to exceed the specified limit, the standard thickness of the thrust flange should be replaced, and the thickness of the spacer should not be arbitrarily reduced. Otherwise, the axial position of the cam will be changed, which will affect the accuracy of the valve phase. .