YY7T0173.5-94表3mm基本尺寸0.250.300.350.400.500.600.70极限偏差士0.030.0280.0350.0420.0430.0550.0700.080A型0.160.190.220.260.320.380.45HB型0.1150.140.170.200.240.280.34C型一一0.160.200.23基本尺寸0.801.001.251.501.752.00极限偏差0.030.0850.1300.1650.2000.2350.265A型0.520.600.750.901.051.20B型0.400.480.550.650.800.95C型0.32上注：A型和B型齿底应圆弧过渡。2.590唇头齿的型式和基本尺寸应符合图4和表4的规定。5130图4表4mm基本尺寸0.500.600.801.001.25极限偏差0.03H0.180.220.280.360.450.080.100.140.170.21注：齿底应圆弧过渡。2.6.弧形唇头齿的型式和基本尺寸应符合图5和表5的规定。4
