我厂加工轧滚的困难之处在于轧滚的内外球面种类多,从R16.5毫米至R77毫米;要求较高,R允差0.05毫米,光洁度(?)6;批量小,每种只有1—2件.在车床上用双手控制法加工,难以达到图纸要求; The difficulty of processing and rolling in our factory lies in the variety of rolling inner and outer spheres, ranging from R16.5mm to R77mm; higher requirements, R tolerance of 0.05mm, finish (?) 6; -2 pieces in the lathe with both hands control method is difficult to meet the requirements of drawings;