{TAIL ~ The elastic member} 98 is provided on the opposite side in the trench 92 to the side on which the cam surface 100 is formed and biases the roller bearing 96 toward {HEAD ~ the cam surface} 100 
{ TAIL ~ The elastic member } 98 is provided on the opposite side in the trench 92 to the side on which the cam surface 100 is formed and biases the roller bearing 96 toward { HEAD ~ the cam surface } 100
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH