我国圆柱齿轮精度新国标试贯工作已全面展开,薪齿轮国标的精度项目比JB179-60要求严了,特别是齿形公差f_f及齿向公差F_β提高了1～2级,规定了△F_i、△f_i、△F_r、F_p、△f_(p_t)、△f_f、△F_β作为齿轮精度的检测项目,这对提高齿轮传动质量,从而保证机械产品具备优良的技术性能将起到很大的促进作用。为了摸清当前齿轮生产的状况,我们1983年下半年,曾对全国主要农机 China’s new round of gear precision national standard work has been conducted in full swing, sailing gear GB of precision than the JB179-60 strict requirements, in particular the tooth profile tolerance f_f and tooth tolerance F_β increased by 1 to 2 levels, provides △ F_i, △ f_i, △ F_r, F_p, △ f_ (p_t), △ f_f, △ F_β as the gear accuracy testing items, which improve the gear transmission quality, thus ensuring the mechanical products with excellent technical performance will play a significant role in promoting . In order to find out the current situation of gear production, we in the second half of 1983, had on the country’s major agricultural machinery