Simple understanding of the classification of the synchronous belt

同步带在我们生活中已经比较容易的见到，而对于它的一些简单分类很多非业内人士也不太清楚，下面就给大家简单的介绍一下同步带的分类。

Synchronous belt to see in our life is relatively easy, and for some simple classification and many of its non industry also not too clear, here we give a simple classification of the synchronous belt.

同步带因牙齿则可以分为梯形齿和弧齿两类，而其中的弧齿又有三种系列，也就是H系列又称HTD带，即是圆弧齿，S系列又称为STPD带，即是平顶圆弧齿，和R系列，也就是凹顶抛物线齿。

Synchronous belt with teeth can be divided into two kinds of trapezoid and arc tooth, and arc gear which has three series, the H series is also called HTD, is a circular arc tooth, S series is also known as the STPD band, is flat circular arc tooth, and R series, is a concave parabola tooth.

则梯形齿同步带有分为单面有齿和双面有齿两种，简单的称为单面带和双面带。而双面带又按齿的排列方式分为对称齿型（代号DA）和交错齿型（代号DB）。对于梯形齿同步带则是有节距制和模数制两种。在我国则是采用的是节距制。并根据ISO 5296制订了同步带传动相应标准GB/T 11361～11362-1989和GB/T 11616-1989。对于弧齿同步带，它出了齿型是曲线型外，其它的结构都和梯形齿同步带大致相同，带的节距相当，齿形也比较高，齿根较厚和齿根圆角半径等都比梯形齿大。当带齿受载后，分布的应力状态也比较好，能够平缓齿根的集中受力，从而提高了齿的承载能力。所以，弧齿同步带比梯形齿同步带传递的功率大，并且还能防止啮合过程中齿的干涉。同时由于弧齿同步带的耐磨性能比较好，工作时噪音也比较小，且不用润滑，所以常用于有粉尘的恶劣环境。现在已经广泛的用在食品、汽车、纺织、制药、印刷、造纸等行业。

The trapezoidal toothed synchronous with divided into single-sided and double-sided toothed gear two, simply called single and double-sided tape. The double-sided tape and according to the tooth arrangement is divided into symmetrical tooth type (code DA) and staggered tooth type (code DB). For trapezoidal toothed synchronous belt is the pitch system and modular system two. In our country it is using the pitch system. And according to ISO 5296 made synchronous belt transmission, the corresponding standard GB/T 11361 ~ 11362-1989 and GB/T 11616-1989. For the arc tooth synchronous belt, it is out of a tooth is curved, other structures and trapezoidal toothed synchronous belt roughly the same, with pitch, tooth shape is relatively high, the root thickness and fillet radius than the trapezoidal teeth. When the belt teeth under load, distribution of stress state is also good, to smooth the root concentrated force, so as to improve the bearing capacity of the teeth. So, arc tooth synchronous belt power ratio of trapezoidal toothed synchronous belt transmission, and can prevent the interference of tooth in meshing process. At the same time as the wear resistance of arc tooth synchronous belt is better, when the noise is relatively small, and no lubrication, so commonly used in dust environment. It has been widely used in the food, pharmaceutical, automotive, textile, printing, paper and other industries