\n| Refer\u00eancia<\/td>\n | \u22482,5 P<\/td>\n | \u22481,25 P<\/td>\n | \u22483 P<\/td>\n | =4 P<\/td>\n | =2 P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Observa\u00e7\u00f5es: Prefira comprimentos gerais; use o comprimento curto para estruturas com restri\u00e7\u00f5es e o comprimento longo para produtos de grau B ou C. Dimens\u00f5es em mm.<\/p>\n Rebaixos de rosca externa<\/h2>\nRecortes (g1, g2) aliviam a tens\u00e3o nas termina\u00e7\u00f5es da rosca, com di\u00e2metros (dg) e raios (r) especificados. O \u00e2ngulo de transi\u00e7\u00e3o \u03b1 \u00e9 de pelo menos 30\u00b0 para evitar cantos vivos.<\/p>\n \n \n\n\n| Passo P (mm)<\/th>\n | g2 (m\u00e1x.)<\/th>\n | g1 (m\u00edn.)<\/th>\n | dg<\/th>\n | r \u2248<\/th>\n<\/tr>\n<\/thead>\n | \n\n| 0.25<\/td>\n | 0.75<\/td>\n | 0.4<\/td>\n | d \u2013 0,4<\/td>\n | 0.12<\/td>\n<\/tr>\n | \n| 0.3<\/td>\n | 0.9<\/td>\n | 0.5<\/td>\n | d \u2013 0,5<\/td>\n | 0.16<\/td>\n<\/tr>\n | \n| 0.35<\/td>\n | 1.05<\/td>\n | 0.6<\/td>\n | d \u2013 0,6<\/td>\n | 0.16<\/td>\n<\/tr>\n | \n| 0.4<\/td>\n | 1.2<\/td>\n | 0.6<\/td>\n | d \u2013 0,7<\/td>\n | 0.2<\/td>\n<\/tr>\n | \n| 0.45<\/td>\n | 1.35<\/td>\n | 0.7<\/td>\n | d \u2013 0,7<\/td>\n | 0.2<\/td>\n<\/tr>\n | \n| 0.5<\/td>\n | 1.5<\/td>\n | 0.8<\/td>\n | d \u2013 0,8<\/td>\n | 0.2<\/td>\n<\/tr>\n | \n| 0.6<\/td>\n | 1.8<\/td>\n | 0.9<\/td>\n | d \u2013 1<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 0.7<\/td>\n | 2.1<\/td>\n | 1.1<\/td>\n | d \u2013 1,1<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 0.75<\/td>\n | 2.25<\/td>\n | 1.2<\/td>\n | d \u2013 1,2<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 0.8<\/td>\n | 2.4<\/td>\n | 1.3<\/td>\n | d \u2013 1,3<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 1<\/td>\n | 3<\/td>\n | 1.6<\/td>\n | d \u2013 1,6<\/td>\n | 0.6<\/td>\n<\/tr>\n | \n| 1.25<\/td>\n | 3.75<\/td>\n | 2<\/td>\n | d \u2013 2<\/td>\n | 0.6<\/td>\n<\/tr>\n | \n| 1.5<\/td>\n | 4.5<\/td>\n | 2.5<\/td>\n | d \u2013 2,3<\/td>\n | 0.8<\/td>\n<\/tr>\n | \n| 1.75<\/td>\n | 5.25<\/td>\n | 3<\/td>\n | d \u2013 2,6<\/td>\n | 1<\/td>\n<\/tr>\n | \n| 2<\/td>\n | 6<\/td>\n | 3.4<\/td>\n | d \u2013 3<\/td>\n | 1<\/td>\n<\/tr>\n | \n| 2.5<\/td>\n | 7.5<\/td>\n | 4.4<\/td>\n | d \u2013 3,6<\/td>\n | 1.2<\/td>\n<\/tr>\n | \n| 3<\/td>\n | 9<\/td>\n | 5.2<\/td>\n | d \u2013 4,4<\/td>\n | 1.6<\/td>\n<\/tr>\n | \n| 3.5<\/td>\n | 10.5<\/td>\n | 6.2<\/td>\n | d \u2013 5<\/td>\n | 1.6<\/td>\n<\/tr>\n | \n| 4<\/td>\n | 12<\/td>\n | 7<\/td>\n | d \u2013 5,7<\/td>\n | 2<\/td>\n<\/tr>\n | \n| 4.5<\/td>\n | 13.5<\/td>\n | 8<\/td>\n | d \u2013 6,4<\/td>\n | 2.5<\/td>\n<\/tr>\n | \n| 5<\/td>\n | 15<\/td>\n | 9<\/td>\n | d \u2013 7<\/td>\n | 2.5<\/td>\n<\/tr>\n | \n| 5.5<\/td>\n | 17.5<\/td>\n | 11<\/td>\n | d \u2013 7,7<\/td>\n | 3.2<\/td>\n<\/tr>\n | \n| 6<\/td>\n | 18<\/td>\n | 11<\/td>\n | d \u2013 8,3<\/td>\n | 3.2<\/td>\n<\/tr>\n | \n| Refer\u00eancia<\/td>\n | \u22483 P<\/td>\n | –<\/td>\n | –<\/td>\n | –<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Observa\u00e7\u00f5es: d \u00e9 o di\u00e2metro nominal; toler\u00e2ncia dg h13 (>3 mm) ou h12 (\u22643 mm). Utilizado para al\u00edvio de tens\u00f5es em aplica\u00e7\u00f5es de alta carga.<\/p>\n Chanfros de rosca externa<\/h2>\nOs chanfros no in\u00edcio das roscas s\u00e3o normalmente de 45\u00b0, mas 60\u00b0 ou 30\u00b0 s\u00e3o permitidos; a profundidade \u00e9 \u2265 altura da rosca. Para roscas laminadas, o comprimento incompleto \u00e9 \u2264 2P para manter a integridade.<\/p>\n Rosca interna com extremidades e ombros<\/h2>\nRecortes internos (X) e ombros (A) acomodam roscas de acoplamento, com op\u00e7\u00f5es gerais e curtas. Prefira a op\u00e7\u00e3o geral; use a longa para folga de cavacos e a curta para restri\u00e7\u00f5es.<\/p>\n \n \n\n\n| Passo P (mm)<\/th>\n | Sa\u00edda X (m\u00e1x.)<\/th>\n | Ombro A<\/th>\n<\/tr>\n | \n| –<\/th>\n | Em geral<\/th>\n | Longo<\/th>\n<\/tr>\n | \n| Em geral<\/th>\n | Curto<\/th>\n<\/tr>\n<\/thead>\n | \n\n| 0.2<\/td>\n | 0.8<\/td>\n | 0.4<\/td>\n | 1.2<\/td>\n | 1.6<\/td>\n<\/tr>\n | \n| 0.25<\/td>\n | 1<\/td>\n | 0.5<\/td>\n | 1.5<\/td>\n | 2<\/td>\n<\/tr>\n | \n| 0.3<\/td>\n | 1.2<\/td>\n | 0.6<\/td>\n | 1.8<\/td>\n | 2.4<\/td>\n<\/tr>\n | \n| 0.35<\/td>\n | 1.4<\/td>\n | 0.7<\/td>\n | 2.2<\/td>\n | 2.8<\/td>\n<\/tr>\n | \n| 0.4<\/td>\n | 1.6<\/td>\n | 0.8<\/td>\n | 2.5<\/td>\n | 3.2<\/td>\n<\/tr>\n | \n| 0.45<\/td>\n | 1.8<\/td>\n | 0.9<\/td>\n | 2.8<\/td>\n | 3.6<\/td>\n<\/tr>\n | \n| 0.5<\/td>\n | 2<\/td>\n | 1<\/td>\n | 3<\/td>\n | 4<\/td>\n<\/tr>\n | \n| 0.6<\/td>\n | 2.4<\/td>\n | 1.2<\/td>\n | 3.2<\/td>\n | 4.8<\/td>\n<\/tr>\n | \n| 0.7<\/td>\n | 2.8<\/td>\n | 1.4<\/td>\n | 3.5<\/td>\n | 5.6<\/td>\n<\/tr>\n | \n| 0.75<\/td>\n | 3<\/td>\n | 1.5<\/td>\n | 3.8<\/td>\n | 6<\/td>\n<\/tr>\n | \n| 0.8<\/td>\n | 3.2<\/td>\n | 1.6<\/td>\n | 4<\/td>\n | 6.4<\/td>\n<\/tr>\n | \n| 1<\/td>\n | 4<\/td>\n | 2<\/td>\n | 5<\/td>\n | 8<\/td>\n<\/tr>\n | \n| 1.25<\/td>\n | 5<\/td>\n | 2.5<\/td>\n | 6<\/td>\n | 10<\/td>\n<\/tr>\n | \n| 1.5<\/td>\n | 6<\/td>\n | 3<\/td>\n | 7<\/td>\n | 12<\/td>\n<\/tr>\n | \n| 1.75<\/td>\n | 7<\/td>\n | 3.5<\/td>\n | 9<\/td>\n | 14<\/td>\n<\/tr>\n | \n| 2<\/td>\n | 8<\/td>\n | 4<\/td>\n | 10<\/td>\n | 16<\/td>\n<\/tr>\n | \n| 2.5<\/td>\n | 10<\/td>\n | 5<\/td>\n | 12<\/td>\n | 18<\/td>\n<\/tr>\n | \n| 3<\/td>\n | 12<\/td>\n | 6<\/td>\n | 14<\/td>\n | 22<\/td>\n<\/tr>\n | \n| 3.5<\/td>\n | 14<\/td>\n | 7<\/td>\n | 16<\/td>\n | 24<\/td>\n<\/tr>\n | \n| 4<\/td>\n | 16<\/td>\n | 8<\/td>\n | 18<\/td>\n | 26<\/td>\n<\/tr>\n | \n| 4.5<\/td>\n | 18<\/td>\n | 9<\/td>\n | 21<\/td>\n | 29<\/td>\n<\/tr>\n | \n| 5<\/td>\n | 20<\/td>\n | 10<\/td>\n | 23<\/td>\n | 32<\/td>\n<\/tr>\n | \n| 5.5<\/td>\n | 22<\/td>\n | 11<\/td>\n | 25<\/td>\n | 35<\/td>\n<\/tr>\n | \n| 6<\/td>\n | 24<\/td>\n | 12<\/td>\n | 28<\/td>\n | 38<\/td>\n<\/tr>\n | \n| Refer\u00eancia<\/td>\n | =4P<\/td>\n | =2P<\/td>\n | \u22486~5P<\/td>\n | \u22488~6,5P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Observa\u00e7\u00f5es: N\u00e3o foi especificado um ombro curto; dimens\u00f5es em mm para remo\u00e7\u00e3o ideal de cavacos.<\/p>\n Rebaixos de rosca interna<\/h2>\nRecortes internos (G1) proporcionam al\u00edvio, com di\u00e2metros (Dg) e raios (R). Recortes curtos para espa\u00e7os limitados; toler\u00e2ncia Dg H13.<\/p>\n \n \n\n\n| Passo P (mm)<\/th>\n | G1<\/th>\n | Dg<\/th>\n | R \u2248<\/th>\n<\/tr>\n | \n| Em geral<\/th>\n | Curto<\/th>\n<\/tr>\n<\/thead>\n | \n\n| 0.5<\/td>\n | 2<\/td>\n | 1<\/td>\n | D + 0,3<\/td>\n | 0.2<\/td>\n<\/tr>\n | \n| 0.6<\/td>\n | 2.4<\/td>\n | 1.2<\/td>\n | D + 0,3<\/td>\n | 0.3<\/td>\n<\/tr>\n | \n| 0.7<\/td>\n | 2.8<\/td>\n | 1.4<\/td>\n | D + 0,3<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 0.75<\/td>\n | 3<\/td>\n | 1.5<\/td>\n | D + 0,3<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 0.8<\/td>\n | 3.2<\/td>\n | 1.6<\/td>\n | D + 0,3<\/td>\n | 0.4<\/td>\n<\/tr>\n | \n| 1<\/td>\n | 4<\/td>\n | 2<\/td>\n | D + 0,5<\/td>\n | 0.5<\/td>\n<\/tr>\n | \n| 1.25<\/td>\n | 5<\/td>\n | 2.5<\/td>\n | D + 0,5<\/td>\n | 0.6<\/td>\n<\/tr>\n | \n| 1.5<\/td>\n | 6<\/td>\n | 3<\/td>\n | D + 0,5<\/td>\n | 0.8<\/td>\n<\/tr>\n | \n| 1.75<\/td>\n | 7<\/td>\n | 3.5<\/td>\n | D + 0,5<\/td>\n | 0.9<\/td>\n<\/tr>\n | \n| 2<\/td>\n | 8<\/td>\n | 4<\/td>\n | D + 0,5<\/td>\n | 1<\/td>\n<\/tr>\n | \n| 2.5<\/td>\n | 10<\/td>\n | 5<\/td>\n | D + 0,5<\/td>\n | 1.2<\/td>\n<\/tr>\n | \n| 3<\/td>\n | 12<\/td>\n | 6<\/td>\n | D + 0,5<\/td>\n | 1.5<\/td>\n<\/tr>\n | \n| 3.5<\/td>\n | 14<\/td>\n | 7<\/td>\n | D + 0,5<\/td>\n | 1.8<\/td>\n<\/tr>\n | \n| 4<\/td>\n | 16<\/td>\n | 8<\/td>\n | D + 0,5<\/td>\n | 2<\/td>\n<\/tr>\n | \n| 4.5<\/td>\n | 18<\/td>\n | 9<\/td>\n | D + 0,5<\/td>\n | 2.2<\/td>\n<\/tr>\n | \n| 5<\/td>\n | 20<\/td>\n | 10<\/td>\n | D + 0,5<\/td>\n | 2.5<\/td>\n<\/tr>\n | \n| 5.5<\/td>\n | 22<\/td>\n | 11<\/td>\n | D + 0,5<\/td>\n | 2.8<\/td>\n<\/tr>\n | \n| 6<\/td>\n | 24<\/td>\n | 12<\/td>\n | D + 0,5<\/td>\n | 3<\/td>\n<\/tr>\n | \n| Refer\u00eancia<\/td>\n | =4P<\/td>\n | =2P<\/td>\n | –<\/td>\n | \u22480,5 P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Observa\u00e7\u00f5es: Recortes curtos para espa\u00e7os limitados; di\u00e2metro nominal D, toler\u00e2ncia Dg H13; dimens\u00f5es em mm.<\/p>\n Chanfros de rosca interna<\/h2>\nOs chanfros de entrada s\u00e3o normalmente de 120\u00b0 ou 90\u00b0; di\u00e2metro (1,05~1)D para f\u00e1cil engate da rosca.<\/p>\n Diretrizes e considera\u00e7\u00f5es para a candidatura<\/h2>\nSelecione as dimens\u00f5es com base no passo e na aplica\u00e7\u00e3o; o formato geral \u00e9 prefer\u00edvel para uso padr\u00e3o, o formato curto para espa\u00e7os limitados e o formato longo para melhor desempenho nas classes B\/C. Certifique-se de que os chanfros evitem rebarbas e que os rebaixos reduzam a concentra\u00e7\u00e3o de tens\u00f5es.<\/p>\n | | | |