SAE内花键尺寸
ANSIB92.11970R1993SAE美国渐开线花键中文翻译完整版0429
ANSI-B92.1-1970(R1993)-SAE 美国渐开线花键-中文翻译完整版0429翻译：朱晓峰节选至《美国机械工程师手册》第28版，有错之处，请指正。
SPLINES AND SERRATIONSA splined shaft is one having a series of parallel keys formed integrally with the shaft and mating with corresponding grooves cut in a hub or fitting; this arrangement is in contrast to a shaft having a series of keys or feathers fitted into slots cut into the shaft. The latter construction weakens the shaft to a considerable degree because of the slots cut into it and consequently, reduces its torque-transmitting capacity.花键轴是一种具有“一系列相互平行的齿、并且齿与轴整体成型”的轴，它与在轮毂上或者装配体上开的键槽相配合。
这种装置与“在轴上开槽并且与一组销子或者楔键相配合”的结构相反。
后者的结构由于在轴上开槽大大降低了轴（的强度），降低了传递扭矩的能力。
Splined shafts are most generally used in three types of applications: 1 ) for coupling shafts when relatively heavy torques are to be transmitted without slippage; 2) for transmitting power to slidably-mounted or permanently-fixed gears, pulleys, and other rotating members; and 3) for attaching parts that may require removal for indexing or change in angular position.花键轴主要用在以下三种情况：1）需要在无滑动的联轴器上传递大的扭矩；2）用于向“可滑动的装配组件”或者“固定装配的齿轮组或滑轮副”传递动力，3）用于“要求指定滑移量或转角位置”的配件上。
SAE花键标准简介
ANSI B92.1-1970 SAE花键标准INVOLUTE SPLINES渐开线花键Form Circle is the circle which defines the deepest points of involute form control of the tooth profile. This circle along with the tooth tip circle (or start of chamfer circle) determines the limits of tooth profile requiring control. It is located near the major circle on the internal spline and near the minor circle on the external spline.渐开线终止圆：渐开线终止圆是用于操纵齿廓上渐开线的极限距离的圆。
渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）共同限制了所要求操纵的渐开线齿廓的范围。
渐开线终止圆的位置靠近内花键的大圆（齿根圆）或者外花键的小圆（齿根圆）。
译者注：这段话的意思是：只有在渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）之间的花键的齿形为渐开线齿形，其余部分不一定按照渐开线成形。
译者注2：在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中，将Form Cycle定义为两个圆：内花键的渐开线终止圆和外花键的渐开线起始圆。
而在本标准中，将这两个圆统称为Form Cycle，译者将Form Cycle翻译为渐开线终止圆。
Form Clearance (c F) is the radial depth of involute profile beyond the depth of engagement with the mating part. It allows for looseness between mating splines and for eccentricities between the minor circle (internal), the major circle (external), and their respective pitch circles.齿形裕度：齿形裕度（c F）是相互配合的内、外花键的渐开线齿廓在径向方向上的间隙。
ANSI_B92.1_SAE花键标准及常用花键参数
ANSI B92.1-1970 SAE花键标准INVOLUTE SPLINES渐开线花键Form Circle is the circle which defines the deepest points of involute form control of the tooth profile. This circle along with the tooth tip circle (or start of chamfer circle) determines the limits of tooth profile requiring control. It is located near the major circle on the internal spline and near the minor circle on the external spline.渐开线终止圆：渐开线终止圆是用于控制齿廓上渐开线的极限距离的圆。
渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）共同限制了所要求控制的渐开线齿廓的范围。
渐开线终止圆的位置靠近内花键的大圆（齿根圆）或者外花键的小圆（齿根圆）。
译者注：这段话的意思是：只有在渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）之间的花键的齿形为渐开线齿形，其余部分不一定按照渐开线成形。
译者注2：在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中，将Form Cycle定义为两个圆：内花键的渐开线终止圆和外花键的渐开线起始圆。
而在本标准中，将这两个圆统称为Form Cycle，译者将Form Cycle翻译为渐开线终止圆。
Form Clearance (c F) is the radial depth of involute profile beyond the depth of engagement with the mating part. It allows for looseness between mating splines and for eccentricities between the minor circle (internal), the major circle (external), and their respective pitch circles.齿形裕度：齿形裕度（c F）是相互配合的内、外花键的渐开线齿廓在径向方向上的间隙。
30度SAE花键计算
0.0003
2.2+14.7/P
最大轮廓Ffm(maximum allowable negative profilevariation)
-0.0005
-(4+17/P)
Fp(maximum allowable total index variation)
0.0015
λ/0.6-2Ffp-Fβ
内花键最小有效键槽宽svmin （minimum effective space width 30 deg spline）
最小齿厚t4min(minimum actual tooth thickness)
0.1001 2.4936 2.3803
最小齿厚t5min(minimum actual tooth thickness)
2.3605
最小齿厚t6min(minimum actual tooth thickness)
2.3332
0.1035
svmin+f(m+λ)
s6max(maximum actual space width)
0.1019
svmin+f(m+λ)
s5max(maximum actual space width)
0.1009
s4max(maximum actual space width)
外花键最大有效齿厚 tvmax(maximum effective tooth thickness)
22.2250
小径Dimax(maximum minor diameter)
外花键小径Dre（minor diameter）
22.3689 20.2481
(N+1)/P+2Cf
SAE花键标准简介(doc 5页)
SAE花键标准简介(doc 5页)_NewLead Variation is the variation of the direction of the spline tooth from its intended direction parallel to the reference axis, also including parallelism and alignment variations (see Fig. 1a). Note: Straight (nonhelical) splines have an infinite lead.导向公差：导向公差是花键的键齿的实际齿线与花键的参考轴线之间的平行度公差，这个公差包括平行度公差和圆周阵列公差（见图Fig.1a）。
注意：直齿花键（非螺旋花键）的导向公差为无穷大。
译者注：这一条解释有待斟酌。
Length of Engagement (Lq) is the axial length of contact between mating splines.结合长度（Lq）：结合长度是两个相互配合的内、外花键之间的接触段的长度。
Machining Tolerance (m) is the permissible variation in actual space width or actual tooth thickness.加工公差（m）：加工公差是花键的实际齿槽宽和实际齿厚的允许的变动量。
译者注：在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中，将加工公差定义为T。
Major Circle is the circle formed by the outermost surface of the spline. It is the outside circle (tooth tip circle) of the external spline or the root circle of the internal spline.大圆：大圆是花键的最大齿形面的包络圆。
ANSI B92.1-1970 SAE花键标准1
ANSI B92.1-1970(R1993) SAE美国渐开线花键-中文翻译完整版0429解读
翻译：朱晓峰节选至《美国机械工程师手册》第28版，有错之处，请指正。
SPLINES AND SERRATIONSA splined shaft is one having a series of parallel keys formed integrally with the shaft and mating with corresponding grooves cut in a hub or fitting; this arrangement is in contrast to a shaft having a series of keys or feathers fitted into slots cut into the shaft. The latter construction weakens the shaft to a considerable degree because of the slots cut into it and consequently, reduces its torque-transmitting capacity.花键轴是一种具有“一系列相互平行的齿、并且齿与轴整体成型”的轴，它与在轮毂上或者装配体上开的键槽相配合。
这种装置与“在轴上开槽并且与一组销子或者楔键相配合”的结构相反。
后者的结构由于在轴上开槽大大降低了轴（的强度），降低了传递扭矩的能力。
Splined shafts are most generally used in three types of applications: 1 ) for coupling shafts when relatively heavy torques are to be transmitted without slippage; 2) for transmitting power to slidably-mounted or permanently-fixed gears, pulleys, and other rotating members; and 3) for attaching parts that may require removal for indexing or change in angular position. 花键轴主要用在以下三种情况：1）需要在无滑动的联轴器上传递大的扭矩；2）用于向“可滑动的装配组件”或者“固定装配的齿轮组或滑轮副”传递动力，3）用于“要求指定滑移量或转角位置”的配件上。
ANSI B92.1-1970 SAE花键标准
ANSI B92.1-1970 SAE花键标准INVOLUTE SPLINES渐开线花键Form Circle is the circle which defines the deepest points of involute form control of the tooth profile. This circle along with the tooth tip circle (or start of chamfer circle) determines the limits of tooth profile requiring control. It is located near the major circle on the internal spline and near the minor circle on the external spline.渐开线终止圆：渐开线终止圆是用于控制齿廓上渐开线的极限距离的圆。
渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）共同限制了所要求控制的渐开线齿廓的范围。
渐开线终止圆的位置靠近内花键的大圆（齿根圆）或者外花键的小圆（齿根圆）。
译者注：这段话的意思是：只有在渐开线终止圆与齿顶圆（或者修缘线的起点所在的圆）之间的花键的齿形为渐开线齿形，其余部分不一定按照渐开线成形。
译者注2：在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中，将Form Cycle定义为两个圆：内花键的渐开线终止圆和外花键的渐开线起始圆。
而在本标准中，将这两个圆统称为Form Cycle，译者将Form Cycle翻译为渐开线终止圆。
Form Clearance (c F) is the radial depth of involute profile beyond the depth of engagement with the mating part. It allows for looseness between mating splines and for eccentricities between the minor circle (internal), the major circle (external), and their respective pitch circles.齿形裕度：齿形裕度（c F）是相互配合的内、外花键的渐开线齿廓在径向方向上的间隙。