Plain tracer : with plastic or natural wood handle ; metal saw tooth and economical using 金属齿式描线轮：塑柄或原色木柄，轮体部分为金属锯齿，经济实用。
The contours of the sprocket teeth are medium frequency induction hardened . all transmission clutches are of involute spline type 链轮齿廓经中频淬火。所有换挡离合器均为渐开线花键齿式离合器。
Swing mechanism comprises an axial piston motor with cushion valve and a planetary gcear reducer . fully sealed singlerow ball swing ring with monobloc internal teeth , grease bathed 带有缓冲阀的轴向柱塞马达与行星齿轮减速机组成的回转机构，单列球型整体内齿式全密封回转支承，油脂润滑。
This paper analyzed the vibrational features of a gear coupling with misaligment fault by means of the analysis of the forces and motions of the coupling , including two and three dimensional analysis 摘要基于相关学科中的一些原理和方法，通过对齿式联轴器联接不对中故障的受力和运动状态方面分析从二维领域推广到了三维立体领域，对该种故障的振动特征进行了分析。
In order to investigate the distribution regularities of axial direction of emerging object , experimental research of paddy threshing and separation used axial flow threshing and separation installation designed by ourselves of screw vane with shutter tooth was carried on 摘要利用自行研制的螺旋叶片带板齿式轴流脱粒与分离装置，进行了水稻脱粒试验研究，目的是研究脱出物沿滚筒轴向的分布规律。
As the axial flow threshing and separating equipment were used more and more widespread and the theory of threshing was not researched deeply , the axial flow threshing and separating installation with helical blade plate were triturated according to the same kind of technique experience 摘要针对轴流脱粒机在实际生产中的广泛应用和人们对于脱粒机理的研究还不深入的现状，结合国内外同类技术研究经验，研制了螺旋叶片带板齿式轴流脱粒与分离装置试验台。
From the analysis , the angle between the axes of the annular gear and outer profile of the coupling in its steady mesh was derived , and a general method for determining the angle was obtained by using an equilibrium of the forces and couples exerting on the annular gear , from which the vibrational features of the coupling could be revealed 得出齿式联轴器联接不对中的稳定啮合时内齿环轴线与外齿环轴线间的空间位置关系，以及用内齿环的力和力偶平衡的方法来求其轴线间夹角的一般方法，并得出了齿式联轴器联接不对中故障所具有的一些振动特征。
