Oblon, Fisher, Spivak, McClelland & Maier
Method of shoulder grinding
 A method of grinding a shoulder portion of a workpiece by a grinding wheel whose edge surface is smaller in width than the shoulder portion of the workpiece. The workpiece is rotated about a first axis and the grinding wheel is rotated about a second axis extending at an acute angle to the first axis. The rotating grinding wheel and the rotating workpiece are first relatively moved to engage the edge surface of the grinding wheel with the radially inner portion of the shoulder portion. The rotating grinding wheel and the rotating workpiece are then relatively moved to move the edge surface of the grinding wheel in a direction substantially perpendicular to and away from the first axis to grind the shoulder portion from the radially inner portion to the radially outer portion thereof by the first grinding surface of the grinding wheel. 
Toyoda Koki Kabushiki Kaisha
B
B24B
inventional
Yasuo Tsuyoshi
Suzuki Koide