一般无特殊形状的圆锥滚子是经过镦制毛坯,再经磨加工而制成的。对于新型结构、外形尺寸较大的空心圆锥滚子是无法采用上述方法的。其毛坯的制造就必须进行车制。在单轴自动车床上车制毛坯是较为经济的一种手段。但对于轴向尺寸较长的圆锥滚子来说,其外形表面采用横车会产生很多不 General non-special shape of the tapered roller is upsetting rough, and then made by the grinding process. For the new structure, the larger size hollow tapered roller can not use the above method. Its rough manufacturing must be made of car. Burn a blank on a single-axis automatic lathe is a more economical means. However, the axial length of the tapered roller, the appearance of the surface with a horizontal car will have a lot of not