行业标准：GB-T15054.5-1994 小螺纹 极限尺寸.pdf

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1、中华人民共和国国家标准GB/'f15054.5一94小螺纹极限尺寸Miniaturescrewthreads-Limitsofsizes本标准参照采用国际标准ISO/R1501-70(ISO小螺纹》主题内容与适用范围本标准规定rGB/T15054.4中优选公差带螺纹的极限尺寸本标准适用于公称直径范围为。.3-1.4mm的，般用途的小螺纹2引用标准GB/T15054.1小螺纹牙型GB/T15054.2小螺纹直径与螺距系列GB/T15054.3小螺纹基本尺寸GB/T15054.4小螺纹公差3极限尺寸3

2、.1极限尺寸计算式D-=d;D，一d一0.751十TDa=d-0.64952P十TDa;D,-=d一0.75H二d一0.64952P;D====d-211,+T),-d-0.96P+TD,;一d-21,一d-0.96P;二d;d_--d一I'd;d,、二=d一。·751=d-0.64952P;dam"一d-0.751-Td,=d一0.64952P-Td;dam。二=d一2h,一d-1.12P;d==,.-d一2h一"I'd,=d-1.12P一Td,.3.2内、外螺纹的极限尺寸分别列于表1和表2表1

3、415内螺纹的极限尺寸大径中色_螺纹代号}螺_距最小最大鼓小最大最小2350.30.30.268一:::::捌50.350.350.3几生翔S0.t0.40359国家技术监督局1994一05一03批准1995一03一01实施Gs/'r15054，5一94续表1rnnl螺距大径中径小径操纹代号P最小最大最小最大最小S0.450.10.450.4090.385:一:35魂SO.50.1250.50.445o.419380S0.550.1250.5504950」690.465430S0.60.150.6

4、0.5310.5030.502456S0.7“。‘:50.70.5860.585532so.80.8一;:0.6700.665608叼S0.9().754684S100..22255Ic;::0.838:::760邵l凡1.10，9820.9380.9250.860一葵1.0381.0250.960::.:0.31.4:;::1.2051.185112表25h3外螺纹的极限尺」rl〕们飞螺纹螺距大径中径小径代号尸最大最小最大最小最大最小S()-30.080.3000.2840.2480.2280.

5、2100.190S0.350.090.3500.3320.2920.2700.2500228SO-40.10.4000-3800.3350.3110.2880.264S0.450.10.4500.4300.385(〕.3610.3380.31450.50.1250.5000.4800.4190.3930.3600-332S0.550.1250.5500.5300.4690.4430.4100.382SO-60.150.6000.5750.5030.4750.4320.400SO-70.1750.7

6、000.6750.5860.5540.5040.468SO.80.20.8000.7700.6700.6340.5760.536SO.90.2250.9000.8700.7540.71406J80.604S10.251.0000.9650.8380.7940.7200.672S1.10.251.1001.0650.9380.8940.8200.772::，::.:5一:::一:::一，::::.{::一::一:.:;:附加说明本标准由中华人民共和国机械工业部提出本标准由机械工业部标准化研究所起草并

7、归口。本标准主要起草人李晓滨、于源、余敏辉，几卜