抄録
The authors have developed the gear lapping machine which uses a nylon lap that enabled making tooth flanks of steel gears smooth: a maximum peak-valley height (Rz) of less than 1μm in a short time. The objective of this research is to develop a center-less gear lapping machine which can more efficiently make both tooth flanks of steel gears smooth without fixing the work gear on any shaft. This paper shows the mechanism of the center-less lapping process and the structure of the lapping machine designed and manufactured by the authors. Moreover, the work gears lapped using the new machine are evaluated with regard to the tooth roughness and the accuracy of the tooth profile.
