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1、中华人民共和国国家质量监督检验检疫总局中华人民共和国国家质量监督检验检疫总局中中 国国 国国 家家 标标 准准 化化 管管 理理 委委 员员 会会ICS 21.220.10J 18中中华华人人民民共共和和国国国国家家标标准准GB/T 2461920代替GB/T 24619-2009同步带传动G、H、R、S 齿型曲线齿同步带与带轮Synchronous belt drivescurvilinear profile systems G、H、R and S belts and pulleys（ISO 13050:2014， Synchronous belts drives ，Metric pitch
2、，curvilinearprofile systems G,H,R and S, belts and pulleys，MOD）征求意见稿2020.03.31200-发布202-实施发 布GB/T 200I目次前言1 范围12 规范性引用文件13 术语和定义14 型号和标记14.1 型号14.2 标记15 G 齿型带和带轮25.1 G 齿型带245.2 G 齿型带轮46 H 齿型带和带轮86.1 H 齿型带86.2 H 齿型带轮117 R 齿型带和带轮167.1 R 齿型带177.2 R 齿型带轮198 S 齿型带和带轮248.1 S 齿型带248.2 S 齿型带轮279 各型号带节线长和极限偏
3、差3010 各型号带轮尺寸极限偏差及几何公差3210.1 节距偏差3210.2 带轮外径极限偏差3210.3 端面圆跳动3210.4 径向圆跳动3310.5 平行度3310.6 圆柱度3311 带轮材质、表面粗糙度及平衡33附录 A （规范性附录）节线长和中心距关系344附录 B （规范性附录）挡圈尺寸355附录 C(资料性附录)本标准与 ISO 13050:2014 相比的结构变化情况 36附录 C(规范性附录)本标准与 ISO13050:2014 的技术性差异及其原因 38参考文献 39GB/T 200前言本标准按照GB/T 1.1-2009给出的规则起草。本标准代替GB/T 246192
4、009曲线齿同步带传动。与GB/T 246192009相比，除编辑性修改外主要技术差异如下：修改了标准名称；增加了G8M和G14M带轮和带型号内容（见全文）；删除了带齿与轮齿间隙（见2009版的图3、图9、图13）；修改了H型齿形尺寸对应的圆弧尺寸为坐标尺寸（见表9,2009版的表1 ）；增加了S3M、DS3M、S5M、DS5M型号曲线齿同步带、带轮及齿条刀具（见第8章）；修改了带轮节距偏差（见表36，2009版的表24）；调整了原标准附录C其他型号同步带及带轮尺寸内容到正文（见第6章、第7章）。本标准使用重新起草法修改采用ISO 13050:2014同步带传动 米制节距 G、H、R、S齿型曲
5、线齿同步带与带轮。本标准与 ISO 13050:2014 相比在结构上有较多调整，附录 C 中列出了本标准与 ISO 13050：2014的章条编号对照一览表。本标准与ISO 13050:2014相比存在技术性差异，这些差异涉及的条款已通过在其外侧页边空白位置的垂直单线（）进行了标示，附录D中给出了相应技术性差异及其原因的一览表。本标准由中国机械工业联合会提出。本标准由全国带轮与带标准化技术委员会归口。本标准起草单位：本标准主要起草人：本标准所代替标准的历次版本发布情况为： GB/T 246192009。GB/T -20XX1同步带传动 G、H、R、S 齿型曲线齿同步带与带轮1范围本标准规定了
6、G、H、R和S齿型曲线齿同步带和带轮的基本特性，主要包括：型号和标记、带齿尺寸、带齿节距、带长和带宽、带长测量方法、带长和中心距关系、轮槽尺寸及极限偏差、带轮直径、轮宽尺寸及极限偏差、带轮几何公差、带轮的材质、表面粗糙度及平衡。本标准适用于一般工业用同步带传动。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。GB/T 6931.3带传动 术语 第3部分：同步带传动（GB/T 6931.3-20xx，ISO 5288:2017，MOD）GB/T 11357带轮的材质、表面粗
7、糙度及平衡（GB/T 11357-20xx，ISO 254:2011，MOD）3术语、定义和符号GB/T 6931.3确定的术语、定义和符号适用于本标准。4型号和标记4.1型号曲线齿同步带和带轮分为G、H、R和S四种齿型，共有以下十四种型号：G齿型：G8M、G14M型号；H齿型：H3M、H5M、H8M、H14M、H20M型号；R齿型：R3M、R5M、R8M、R14M、R20M型号；S齿型：S3M、S5M、S8M、S14M型号。4.2标记4.2.1带的标记带的标记由带节线长、带型号(包括齿型和节距)和带宽（对于S齿型为实际带宽的10倍）组成，双面齿同步带，在带型号前加字母D。示例：节线长1400
8、mm，节距14mm，宽40mm的曲线齿同步带标记为：G齿型（单面）：1400G14M40；H齿型（单面）：1400H14M40，H齿型（双面）：1400DH14M40；R齿型（单面）：1400R14M40，R齿型（双面）：1400DR14M40；S齿型（单面）：1400S14M400，S齿型（双面）：1400DS14M400。4.2.2带轮的标记GB/T -2002带轮的标记由带轮代号P、带轮齿数、带轮型号(包括齿型和节距)和轮宽(对于S齿型为实际轮宽的10倍)组成。示例：齿数30，节距14mm,轮宽40mm的曲线齿同步带轮标记为：G齿型：P30G14M40；H齿型：P30H14M40；R齿型
9、：P30R14M40；S齿型：P30S14M400。5G 齿型带和带轮5.1G齿型带5.1.1G 齿型带齿尺寸G齿型带齿尺寸见图1和表1。图1 G齿型带齿表1G齿型带齿尺寸单位为毫米型号节距shtrrA0aXOL1G8M85.2003.430.742.290.800.3791.378G14M149.1006.001.304.001.400.6612.422齿形轨迹见公式1：对于 Ao x xo，（1）式中：xo相当于 y = ht;L1=s - 2 （Ao-xo）。注 1：显示的基本齿形在所有构成部分中保持一致。注 2：“0”坐标点处 R1 半径弯曲部分与外径部分保持一致。注 3：在内圆周组成
10、部分中，轮槽底部表面是段圆弧，其弦长为 L1，圆心半径位于中心。5.1.2G齿型带宽及极限偏差G齿型带宽及极限偏差见表2。GB/T -2003表 2G 齿型带宽及极限偏差单位为毫米型号带宽极限偏差840mm840LP16801680mmG8M120.8+0.8-1.2+0.8-1.2210.8+0.8-1.2+0.8-1.2360.8+0.8-1.2+0.8-1.2621.2+1.2-1.61.6G14M200.8+0.8-1.2+0.8-1.2370.8+0.8-1.2+0.8-1.268+1.2-1.61.6+1.6-2.0901.6+1.6-2.02.01252.4+2.4-2.8+2.
11、4-3.25.1.3G齿型带长测量5.1.3.1 测量装置测长装置(见图2)由两个相同直径的带轮、施加测量力装置和中心距测量装置组成。两带轮均可自由转动，其中一个带轮的轴支架固定，另一个带轮的轴支架可沿两带轮中心连线游动。带轮型号应与测量带型号相同，其齿数、尺寸、极限偏差见表3，测量力见表4。图2测量装置简图说明：F总测量力；c中心距。5.1.3.2 测量程序GB/T -2004将带安装在测长装置的两带轮上，施加测量力，将带至少转动两圈以上，使带齿与轮齿啮合良好并使测量力均匀分配在带的两边。测量两带轮中心距。带长等于带轮节圆周长加两倍中心距。对于双面齿带应测量两齿面带长。表 3G 齿型测量带轮
12、单位为毫米型号齿数Z节圆周长d外径do径向圆跳动端面圆跳动G8M3427284.9800.0130.0130.025G14M40560175.4540.0250.0130.051表 4G 齿型带测量力单位为牛顿型号带宽1220213637626890125G8M2674677561223G14M117920463447431556275.2G 齿型带轮5.2.1 G齿型带轮齿条刀具G齿型带轮齿条刀具尺寸及极限偏差见图3和表5。图 3G 齿型带轮齿条刀具GB/T -20XX5表 5加工 G 齿型带轮齿廓齿条刀具尺寸及极限偏差单位为毫米型号齿数范围PbhrP0r1P1r2P2r3P3r4P4r5P
13、5r6P6r7P7r8P8XG8M22-2728-3738-5859-8990-2507.7847.8437.8917.9308.0403.5413.5133.4873.4673.4523.48003.44803.42603.41203.55800.8420.8280.8190.8180.8462.710-0.4332.746-0.3482.829-0.2322.943-0.1303.040-0.1641.4591.0860.9180.84609572.567-0.7882.578-0.7152.583-0.6682.586-0.6322.751-0.5121.9842.617-0.8738.
14、8339.4879.96410.3858.2752.427-1.2752.447-1.1932.462-1.1262.470-1.0822.345-1.7245.8825.9015.9215.9325.1111.841-2.5801.894-2.4861.940-2.4021.978-2.3281.978-2.4953.1233.1523.1813.2053.0421.324-3.2351.367-3.1771.410-3.1191.443-3.0721.559-3.0561.4501.5051.5621.6141.7250.979-3.4911.009-3.4471.024-3.4141.0
15、39-3.3841.181-3.3590.5520.6400.6690.7250.8050.856-3.5410.843-3.5130.831-3.4870.820-3.4670.951-3.4520.8560.8430.8310.8200.951G14M27-2930-3536-4546-6061-9091-149150-25013.67413.72513.78013.83113.87913.92713.9566.1746.1476.1176.0906.0656.0406.0246.00905.98605.96105.94005.91905.90005.88701.4611.4531.446
16、1.4371.4291.4201.4144.777-0.6844.738-0.7174.685-0.7804.652-0.8154.608-0.8834.568-0.9554.537-1.0312.1882.2062.2412.1802.1512.5865.7574.536-1.2224.519-1.2444.490-1.3124.484-1.3134.484-1.2854.476-1.2924.458-1.3529.7289.4484.405-1.6964.418-1.62611.86711.91913.05113.09113.18313.30413.1503.768-3.4873.800-
17、3.4083.951-3.0413.971-2.9833.988-2.9284.014-2.8484.030-2.7999.6259.58410.11510.09210.06710.05110.0513.161-4.6193.213-4.5313.297-4.3873.417-4.1723.463-4.0813.505-3.9973.533-3.9386.1146.1296.1636.2226.2366.2456.2492.486-5.4892.522-5.4362.582-5.3562.6479-5.2672.702-5.1932.746-2.1282.701-5.1713.3383.433
18、3.4893.5413.5863.6293.6521.808-6.0411.850-5.9901.883-5.9421.913-5.8991.940-5.8571.969-5.8151.983-5.7921.5111.5881.6721.7451.8121.8721.9081.505-6.1741.496-6.1741.485-6.1171.467-6.0901.467-0.0651.458-6.0401.453-6.0241.5051.4961.4851.4761.4671.4581.453GB/T -20065.2.2G 齿型齿槽尺寸G齿型齿槽尺寸见图4、图5和表6。图 4G 齿型带轮齿槽
19、表 6G 齿型带轮槽型尺寸单位为毫米型号齿数范围ShtrrA0X0L1aG8M22-8990-2505.4005.6603.433.430.800.802.292.290.3790.3791.601.600.80G14M28以上9.4506.001.404.000.6612.801.40齿形轨迹见公式2对于Ao x xo：（2）式中：xo相当于 y = ht；L1=s - 2 （Ao-xo）。注 1：显示的基本齿形在所有构成部分中保持一致。注 2：“0”坐标点处 R1 半径弯曲部分与外径部分保持一致。注 3：在内圆周组成部分中，轮槽底部表面是段圆弧，其弦长为 L1，圆心半径位于中心。说明：1外
20、径。注：带轮齿槽横截面的准确齿形仅能用相关函数绘制。图 5 G 齿型带轮齿槽加工公差5.2.3G齿型带轮直径带轮节径和外径标准值见表 7,带轮外径和节径关系见图 6。带轮节径b/dZP。带轮外径 dod2a，节线差 a 值见表 5。GB/T -207说明：1节距；2同步带节线；3带齿；4节圆直径；5外径；6轮槽。图 6G 齿型带轮表 7G 齿型带轮直径尺寸单位为毫米齿数型号G8MG14M节圆外径d外径do节圆外径d外径do22252829303156.0263.6671.3076.3954.4262.0669.7074.79124.78129.23133.69138.15121.98126.4
21、3130.89135.35323334353637383981.4986.5891.6796.7779.8984.9890.0795.17142.60147.06151.52155.97160.43164.88169.34173.80139.80144.26148.72153.17157.63162.08166.54171.0040424344454850535660101.86106.95114.59122.23127.32134.96142.60152.79100.26105.35112.99120.63125.72133.36141.00151.19178.25191.62196.082
22、00.54213.90222.82236.19249.56267.38175.45188.82193.28197.74211.10220.02233.39246.76264.58GB/T -2086364677172758090160.43162.97170.61180.80190.99203.72229.18158.83161.37169.01179.20189.39202.12227.58280.75285.21298.57316.40320.86334.23356.51401.07277.95282.41295.77313.60318.06331.43353.71398.27112140
23、168192180192200224285.21356.51488.92458.37570.41283.61354.91487.32456.77568.81499.11623.89748.66802.14855.62891.27998.22496.31621.09745.86799.34852.82888.47995.425.2.4轮宽G齿型轮宽示意图见图7，标准轮宽及最小轮宽见表8，挡圈尺寸见附录B。（a）双挡圈（b）单边挡圈（c）无挡圈图 7G 齿型轮宽示意图表 8G 齿型轮宽尺寸单位为毫米型号标准轮宽最小轮宽有挡圈bf、bf无挡圈bfG8M122136621423406622304774
24、G14M2037689012526447699134355285107143注：如果传动系统带轮齿宽中心位置位于同一直线时，无挡圈带轮的轮宽可适当减小，但不能小于有挡圈带轮的最小轮宽。6H齿型带和带轮6.1 H齿型带GB/T -2096.1.1H齿型带齿尺寸H齿型带齿尺寸见图8和表9。a）单面带b）双面带图 8 H 齿型带齿表 9H 齿型带齿尺寸单位为毫米型号节节距距Pb bhs shd dht tP1P1(X,Y)(X,Y)PSPSr1r1P2P2(X,Y)(X,Y)P6P6(X,Y)(X,Y)P3P3(X,Y)(X,Y)P7P7(X,Y)(X,Y)r2P4P4(X,Y)(X,Y)P8P8(
25、X,Y)(X,Y)aH3M32.4-1.21-1.140.00-0.30-0.83-0.30-0.83-0.35-0.860.00-1.21-0.381DH3M3-3.2-1.140.760.30-0.831.06-0.831.110.86-0.001.970.381H5M53.8-2.08-1.850.00-0.41-1.44-0.42-1.44-0.53-1.500.00-2.08-0.572DH5M5-5.3-1.851.140.41-1.441.56-1.441.671.50-0.003.220.572H8M86.0-3.38-3.300.00-0.76-2.55-0.65-2.47-
26、1.17-2.590.00-3.38-0.686DH8M8-8.4-3.301.370.76-2.552.02-2.472.542.59-0.004.750.686H14M1410.0-6.02-5.780.00-1.42-4.36-1.29-4.30-1.97-4.460.00-6.02-1.397D14M14-14.8-5.782.791.42-4.364.08-4.304.764.46-0.008.811.397H20M2013.2-8.68-8.340.00-2.03-6.32-1.84-6.22-2.90-6.400.00-8.68-2.1596.1.2 H齿型带宽及极限偏差H齿型带
27、宽及极限偏差见表10。表10H齿型带宽度及极限偏差单位为毫米型号带宽bs极限偏差LP840840LP1680LP1680H3MDH3M69+0.4-0.8+0.4-0.8-GB/T -2010150.8+0.8-1.2+0.8-1.2H5MDH5M9+0.4-0.8+0.4-0.8-15250.8+0.8-1.2+0.8-1.2H8MDH8M20300.8+0.8-1.2+0.8-1.250+0.8-1.21.2+1.2-1.6851.6+1.6-2.02.0H14MDH14M40+0.8-1.21.2+1.2-1.6551.2+1.2-1.61.6851.6+1.6-2.02.0115170
28、2.4+2.4-2.8+2.4-3.2H20MR20M1151702.4+2.4-2.8+2.4-3.2230290340-+4.8-6.46.1.3H 齿型带长测量6.1.3.1 测量装置测长装置(见图9)由两个相同直径的带轮、施加测量力装置和中心距测量装置组成。两带轮均可自由转动，其中一个带轮的轴支架固定，另一个带轮的轴支架可沿两带轮中心连线游动。带轮型号应与测量带型号相同，其齿数、尺寸、极限偏差见表11，测量力见表12。图 9测量装置简图说明：F总测量力；c中心距。6.1.3.2 测量程序GB/T -2011将带安装在测长装置的两带轮上，施加测量力，将带至少转动两圈以上，使带齿与轮齿啮合
29、良好并使测量力均匀分配在带的两边。 在规定加载测试力条件下读取两带轮中心距。 带长等于带轮节圆周长加两倍中心距。对于双面齿带应测量两齿面带长。表 11H 齿型测量带轮单位为毫米型号齿数Z节圆周长Cp外径d0径向圆跳动端面圆跳动H3M，DH3M309027.8860.0130.0130.025H5M，DH5M2010030.6870.0130.0130.025H8M，DH8M3427285.2080.0130.0130.025H14M，DH14M40560175.460.0250.0130.051H20M40800250.330.0360.0130.076表 12H 齿型带测量力型号总测量力，N
30、带宽，mm691520253040505585115170230290340H3M，DH3M4576138H5M，DH5M111214376H8M，DH8M47075013202310H14M，DH14M13502130366051807960H20M6961107291483918949223746.2 H 齿型带轮6.2.1 H 齿型带轮齿条刀具H齿型带轮齿条刀具尺寸及极限偏差见图10和表13。图 10H 齿型带轮齿条刀具GB/T -2012表 13加工 H 齿型带轮齿廓齿条刀具尺寸及极限偏差单位为毫米型号齿槽数Pb0.012Hr0.015P0（XY）r10.012P1（XY）r20.01
31、2P2（XY）r30.012P3（XY）r40.012P4（XY）r50.012P5（XY）XH3M9-1314-2526-8081-2003.0003.0003.0003.0001.1961.1731.2271.2321.42301.32401.22301.33300.4140.2540.2620.3581.061-0.2131.139-0.0800.982-0.1590.981-0.2900.7922.6160.992-0.2130.820-0.6790.712-0.8400.747-0.8600.923-0.5540.5590.2540.4930.574-1.0040.687-0.944
32、0.733-0.8770.8690.8440.8690.8660.029-1.1960.114-1.1680.036-1.2270.077-1.2320.0290.1140.0360.077H5M12-1617-3132-7980-2005.0005.0005.0005.0001.9862.0242.0322.0562.34402.24202.07302.16000.6590.6100.4930.6101.739-0.3161.871-0.1261.675-0.2031.564-0.4834.4751.4311.3591.522-0.7201.540-0.5931.501-0.5661.124
33、-1.5601.163-1.5661.370-1.0351.443-1.0500.6910.6121.4020.773-1.8951.013-1.7891.088-1.6171.1331.2191.3001.4710.328-1.9860.295-2.0240.135-2.0320.043-2.0650.3280.2950.1350.043H8M22-2728-8990-2008.0008.0008.0003.2893.6123.6323.80503.75403.61701.1431.0670.9402.738-0.6482.748-0.7112.697-0.75712.9032.360-2.
34、0242.322-1.8012.459-1.9480.7262.283-2.2152.5532.7442.6370-3.28903.6120-3.632H14M28-3637-8990-21614.00014.00014.0006.3206.2236.3506.76106.59906.54601.8801.8291.9055.037-1.1334.890-1.1764.704-1.42520.82815.74820.1174.064-3.9044.204-3.4934.288-3.4391.1431.1430.2543.909-4.2424.089-3.8024.270-3.4984.7174
35、.6634.6230-6.3200-6.2330-6.350H20M34-4546-100101-22020.00020.00020.0008.6448.5918.6909.78609.52909.78702.8142.6672.6767.105-1.8527.041-1.6627.305-1.76020.3296.015-5.1215.972-4.9476.165-4.8555.6255.8425.7330.753-8.6440.711-8.5910.739-8.6900.7530.7110.7396.2.2 H 齿型带轮齿槽H 齿型带轮齿槽尺寸见图 11 和表 14。说明：1最小值；2最大
36、值；3带轮外径。图 11H 齿型带轮齿槽公差带GB/T -2013表 14H 齿型带轮齿槽尺寸单位为毫米型号齿数HgXR1R2公差范围H3M10-1314-2526-8081-2001.1901.1791.2191.2340.0290.1120.0280.0740.9910.8890.9270.92515.09.08.04.00.1810.2290.1910.3010.051H5M12-1617-2526-8081-2001.9892.0092.0522.0560.3070.3200.0810.0281.2651.2701.4381.55210.06020500.4320.5080.4880.
37、5690.051H8M22-2728-8990-2003.2953.6043.6300.0000.0000.0002.6752.6292.63911.3706.60.8741.0241.008+0.090-0.080H14M28-3233-3637-5758-8990-153154-2166.3276.3286.1986.1986.3286.3270.0000.0000.0000.0000.0000.0004.8594.8344.7374.6694.6364.5977.15.29.38.96.98.61.5441.6131.6541.9021.7041.770+0.090-0.080H20M3
38、2-4546-100101-2208.6498.6618.7000.5440.5440.5446.1856.1856.1851501001802.1842.5402.5400.0896.2.3 带轮直径带轮节径和外径标准值见表 15,带轮外径和节径关系见图 12。带轮节径b/dZP。带轮外径 dod2a+N，节顶距 a 见表 9，N值见表 16。说明：1节距；2同步带节线；3带齿；4节圆直径；5外径；6轮槽。图 12H 齿型带轮齿型带轮GB/T -2014表 15H 齿型带轮直径尺寸单位为毫米齿数型号H3MH5MH8MH14MH20M节圆直径外径节圆直径外径节圆直径外径节圆直径外径节圆直径外径
39、1413,3712,6122,2821,141514,3213,5623,8722,731615,2814,5225,4624,321716,2315,4727,0625,921817,1916,4328,6527,501918,1417,3830,2429,102019,1018,3431,8330,692120,0519,2933,4232,282221,0120,2535,0133,8756,0254,652422,9222,1638,2037,0561,1259,7425-63,6662,292624,8324,0741,3840,2466,2164,482826,7425,9844,
40、5643,4271,3070,08124.78122,1229-129.23126,573028,6527,8947,7546,6076,3975,13133.69130,993230,5629,8050,9349,7981,4980,16142,60139,883432,4731,7154,1152,9786, 5885,21151,52148,78216,45212,133634,3833,6257,3056,1591.6790,30160,43157,68229,18224,873836,2935,5360,4859,3496,7795,39169,34166,60241,92237,6
41、04038,2037,4463,6662,52101,86100,49178,25175,49254,65250,334341,0640,3068,4467,29-4442,0241,2570,0368,89112,05110,67196,08193,29280,11275,794643,9343,1673,2172,07-4845,4845,0776,3975,25122,23120,86213,90211,11305,58301,264946,7946,0377,9976,84-5047,7546,9879,5878,43-5249,6648,8982,7681,62-231,73228,
42、94331,04326,725552,5251,7687,5486,39-56-89,1387,98142,60141,23249,55246,76356,51352.196057,3056,5395,4994,35-267,38264,59381,97377,6562-98,6897,53-64-162,97161,60285,21282,41407,44403,126562,0761,31103,45102,31-68-303,03300,24432,90428,58GB/T -20157066,8566,08111,41110,27-7268,7567,99-183,35181,9732
43、0,86318,06458,37454,057571,6270,86119,37118,22-7874,4873,72124,14123,00-8076,3975,63127,32126,18203,72202,35356,51353,71509,30504,989085,9485,18143,24142,10229,18227,81401,07398,28572,96568,6410095,4994,73159,15158,01-110112120130140144150160168105.04-114.59124.14133.69-143.24152.79-104.28-113.83123
44、.38132.93-142.48152.03-175.07-190.99206.90222.82-238.73254.65-173.93-189.84205.76221.67-237.59235.50-285.21-366.69-427.81-283.83-365.32-426.44-499.11-641.71-748.66-496.32-638.92-745.87-713.01-916.73-1069.52-708.70-912.41-1065.20192216-488.92-487.55-855.62962.57852.82959.781222.311375.101217.991370.7
45、8表 16N值单位为毫米齿数Z型号H8MH14M282930313233343536373839400.150.150.100.080.050.030.150.130.090.090.080.080.050.050.050.050.050.030.03注：H3M、H5M、H20M 的值为 0.6.2.4 轮宽H齿型轮宽示意图见图13，标准轮宽及最小轮宽见表17，挡圈尺寸见附录B。GB/T -2016a)双边挡圈b）单边挡圈c)无挡圈图 13 H 齿型轮宽示意图表 17H 齿型轮宽尺寸单位为毫米型号标称宽度最小轮宽有挡圈bf、bf无挡圈bfH3M691581117111420H5M9152511
46、1727152131H8M203050852232538930406096H14M4055851151704258891201755570101131186H20M115170230290340120175235300350134189251311361注：如果传动系统带轮齿宽中心位置位于同一直线时，无挡圈轮宽可适当减小，但不能小于带挡圈带轮的最小轮宽。7R 齿型带和带轮GB/T -20177.1R 齿型带7.1.1R 齿型带齿尺寸R齿型带齿尺寸见图14和表18。a）单面带b）双面带图 14R 齿型带齿表 18R 齿型带齿尺寸单位为毫米型号节距Pb齿形角齿根厚S带高hs带高hd齿高ht根部半径
47、rr节线差aCR3M3321.952.401.270.3800.3813.0567DR3M3321.953.301.270.3800.3813.0567R5M5323.303.802.150.6300.5701.7950DR5M5323.305.442.150.6300.5701.7950R8M8325.495.403.251.000.6861.0954DR8M8325.498.373.251.000.6861.0954R14M14329.619.706.131.751.3970.6250DR14M14329.6115.056.131.751.3970.6250R20M203213.7514.
48、508.752.502.1600.0438A 值为皮带设计节线差7.1.2 R 齿型带宽及极限偏差R齿型带宽及极限偏差见表19。表 19R 齿型带宽及极限偏差单位为毫米齿型带宽bs极限偏差LP840840LP1680LP1680R3MDR3M69+0.4-0.8+0.4-0.8-GB/T -2018150.8+0.8-1.2+0.8-1.2R5MDR5M9+0.4-0.8+0.4-0.8-15250.8+0.8-1.2+0.8-1.2R8MDR8M20300.8+0.8-1.2+0.8-1.250+0.8-1.21.2+1.2-1.6851.6+1.6-2.02.0R14MDR14M40+0.
49、8-1.21.2+1.2-1.6551.2+1.2-1.61.6851.6+1.6-2.02.01151702.4+2.4-2.8+2.4-3.2R20M1151702.4+2.4-2.8+2.4-3.2230290340-+4.8-6.47.1.3R 齿型带带长测量7.1.3.1 测量装置测长装置(见图15)由两个相同直径的带轮、 施加测量力装置和中心距测量装置组成。 两带轮均可自由转动，其中一个带轮的轴支架固定，另一个带轮的轴支架可沿两带轮中心连线游动。带轮型号应与测量带型号相同，其齿数、尺寸、极限偏差见表20，测量力见表21。说明：F总测量力；C中心距。图 15测量装置简图GB/T -2
50、0197.1.3.2 测量程序将带安装在测长装置的两带轮上，施加总测量力，将带至少转动两圈以上，使带齿与轮齿啮合良好并使测量力均匀分配在带的两边。测量两带轮中心距。带长等于带轮节圆周长加两倍中心距。对于双面齿带应测量两齿面带长。表 20R 齿型测量带轮单位为毫米型号齿数Z节圆周长Cp外径do径向圆跳动端面圆跳动R3M,DR3M309027.8860.0130.0130.025R5M,DR5M2010030.6870.0130.0130.025R8M，DR8M3427285.2080.0130.0130.025R14M，DR14M40560175.460.0250.0130.051R20M408
51、00250.330.0360.0130.076表 21R 齿型带测量力型号总测量力，N带宽，mm691520253040505585115170230290340R3M，DR3M4576138-R5M，DR5M-111214-376-R8M，DR8M-470-750-1320-2310-R14M，DR14M-1350-2130366051807960-R20M-6961107291483918949223747.2 R 齿型带轮7.2.1 R 齿型带轮齿条刀具R齿型带轮齿条刀具尺寸及极限偏差见图16和表22。图 16 R 齿型带轮齿条刀具GB/T -2020表 22加工 R 齿型带轮齿廓齿条刀
52、具尺寸及极限偏差单位为毫米型号齿槽数Pb0.012a0.50bthprefhrWpWrWtr20.025cR3M8-152.76132.002.06+0.05-0.000.9251.150.0250.96600.2340.87+0.05-0.000.313.2850R3M16-302.86732.002.06+0.05-0.000.9251.150.0250.96600.3400.87+0.05-0.000.313.2850R3M31+3.00032.002.00+0.05-0.000.8961.200.0250.91300.3670.798+0.05-0.000.413.3940R5M10-
53、214.76132.003.480.0251.6042.06+0.05-0.001.60900.3321.3790.0250.631.8960R5M22+5.00032.003.480.0251.6042.06+0.05-0.001.60900.5711.3790.0250.631.8960R8M22-277.78036.005.9000.0252.8283.45+0-0.052.750.5771.8200.0250.900.8373R8M28+7.89036.005.9000.0252.7943.45+0-0.052.740.6121.8400.0250.950.8477R14M28+13.
54、80036.0010.45+0.05-0.004.9306.04+0.05-04.871.0203.3200.0251.600.4799R20M30+19.69236.0014.85+0.05-0.006.7038.50+0.05-06.8411.6044.9700.0252.600.35327.2.2R 齿型带轮齿槽R齿型带轮齿槽尺寸见图17、图18和表23、表24。说明：GB/T -20211带轮外径。图 17R 齿型带轮齿槽表 23R 齿型带轮齿槽尺寸单位为毫米型号齿数GHXaXbYBXcYcKrtRDaR3M8-151.150.394.000.080.540.943.21000.284
55、.000.38116-301.150.404.000.000.530.933.28500.3013.00311.200.404.000.000.530.933.39400.4018.00R5M10-212.060.634.000.060.971.701.79000.639.000.570222.060.704.000.000.951.661.82900.5018.00R8M22-273.470.924.000.111.752.610.84770.9022.000.686283.470.924.000.001.752.610.84770.9522.00R14M286.041.644.000.00
56、3.214.930.47991.6032.001.360R20M308.502.504.000.004.406.800.34902.42150.002.159说明：1轮齿外径。注：带轮齿槽横截面的准确齿形仅能用相关函数绘制。图 18 R 齿型带轮齿槽加工公差表 24 R 齿型带轮齿顶圆角半径rt值单位为毫米型号齿数rtaR3M8-1516-30310.280.300.40R5M10-21220.630.50R8M22-27280.900.95R14M281.60R20M302.42a 轮廓带公差通过R2与带轮外径相切，从而避免带轮外径与轮廓公差带冲突。7.2.3 带轮直径带轮节径和外径标准值见
57、表25,带轮外径和节径关系见图19。带轮节径b/dZP。GB/T -2022带轮外径dod2，节顶距a见表23。说明：1节距；2同步带节线；3带齿；4节圆直径；5外径；6轮槽。图 19R 齿型带轮表 25R 齿型带轮直径单位为毫米齿数型号R3MR5MR8MR14MR20M节圆外径外径节圆外径外径节圆外径外径节圆外径外径节圆外径外径1415161718192013.3714.3215.2816.2317.1918.1419.1012.6113.5614.5215.4716.4317.3818.3422.2823.8725.4627.0628.6530.2431.8321.1422.7324.32
58、25.9127.5029.1030.69212224252628293020.0521.0122.92-24.8326.74-28.6519.2920.2522.16-24.0725.98-27.8933.4235.0138.20-41.3844.56-47.7532.2833.8737.05-40.2443.42-46.6056.0261.1263.6666.2171.30-76.3954.6559.7462.2964.8469.93-75.02124.78129.23133.69122.05126.51130.96323436384043444630.5632.4734.3836.2938
59、.2041.0642.0243.9329.8031.7133.6235.5337.4440.3041.2543.1650.9354.1157.3060.4863.6668.4470.0373.2149.7952.9756.1659.3462.5267.3068.8972.0781.4986.5891.6796.77101.86-112.04-80.1285.2190.3095.40100.49-110.67-142.60151.52160.43169.34178.25-196.08-139.88148.80157.71166.62175.53-193.36-216.45229.18241.92
60、254.65-280.11-212.13224.86237.60250.33-275.79-GB/T -2023484950525556606245.8446.7947.7549.6652.52-57.30-45.0746.0346.9848.8951.76-56.53-76.3977.9979.5882.7687.5489.1395.4998.6875.2576.8578.4481.6286.4087.8994.3597.54122.23-142.60-120.86-141.23-213.90-231.73-249.55267.38-211.18-229.01-246.83264.66-30
61、5.58-331.04-356.51381.97-301.26-326.72-325.19377.65-646568707275788090100-62.07-66.8568.7571.6274.4876.3985.9495.49-61.31-66.0867.9970.8673.7275.6385.1894.73-103.45-111.41-119.37124.14127.32143.24159.16-102.31-110.27-118.23123.00126.18142.10158.02162.97-183.35-203.72229.18-161.60-181.97-202.35227.81
62、-285.20-303.03-320.86-356.51401.07-282.48-300.31-318.14-353.79398.35-407.44-432.90-458.37-509.30572.96-403.12-428.58-454.05-504.98568.64-110112120130140144150160168105.04-114.59124.14133.69-143.24152.79-104.28-113.83123.38132.93-142.48152.03-175.07-190.99206.90222.82-238.73254.65-173.93-189.85205.76
63、221.68-237.59235.51-285.21-366.69-427.81-283.83-365.32-426.44-499.11-641.71-748.67-496.38-638.99-745.94-713.01-916.73-1069.52-708.69-912.41-1065.20192216-488.92-487.55-855.61962.57852.89959.851222.311376.101217.991371.787.2.4轮宽R齿型轮宽示意图见图20，标准轮宽及最小轮宽见表26，挡圈尺寸见附录B。a)双边挡圈b）单边挡圈c)无挡圈图 20 R 齿型轮宽示意图表 26 R
64、 齿型轮宽尺寸单位为毫米型号标准轮宽最小轮宽有挡圈bf、bf无挡圈bfR3M691581117111420GB/T -2024R5M91525111727152131R8M203050852232538930406096R14M4055851151704258891201755570101131186R20M115170230290340120175235300350134189251311361注：如果传动系统带轮齿宽中心位置位于同一直线时，无挡圈带轮轮宽可适当减小，但不能小于带挡圈带轮的最小轮宽。8S 齿型带和带轮8.1 S 齿型带8.1.1 S 齿型带齿尺寸S 齿型带齿尺寸见图 21 和
65、表 27。a)单面带b)双面带图 21S 齿型带齿表 27 S 齿型带齿尺寸单位为毫米型号节距Pb带高hs带高hd齿高htSrbb顶部半径ra根部半径rrY节线差aS3M32.0-1.141.951.950.30.30.1270.381GB/T -2025DS3M3-2.81.141.951.950.30.30.1270.381S5M53.5-1.913.253.250.30.50.0990.480DS5M5-4.81.913.253.250.30.50.0990.480S8M85.3-3.055.205.200.80.80.6860.686DS8M8-7.473.055.205.200.80
66、.80.6860.686S14M1410.2-5.39.109.101.41.41.3971.397DS14M14-13.395.39.109.101.41.41.3971.397a 值为皮带设计节线差8.1.2S 齿型带宽及极限偏差S 齿型带宽及极限偏差见表 28。表 28S 齿型带宽及极限偏差单位为毫米型号带宽极限偏差节线长LP840mm840LP1680LP1680S3MDS3M6100.60.60.6150.80.80.8S5MDS5M100.60.60.615250.8+0.8-1.2+0.8-1.2S8MD8M152025300.8+0.8-1.2+0.8-1.240500.8-1
67、.21.2+1.2-1.6601.2+1.2-1.61.6851.6+1.6-2.02.0S14MD14M400.8-1.21.2+1.2-1.655601.2+1.2-1.61.680851.6+1.6-2.02.01001.6+1.6-2.02.01151201702.4+2.4-2.8+2.4-3.28.1.3 S 齿型带带长测量8.1.3.1 测量装置GB/T -2026测长装置(见图22)由两个相同直径的带轮、 施加测量力装置和中心距测量装置组成。 两带轮均可自由转动，其中一个带轮的轴支架固定，另一个带轮的轴支架可沿两带轮中心连线游动。带轮型号应与测量带型号相同，其齿数、尺寸、极限偏
68、差见表29，测量力见表30。图 22测量装置简图说明：F总测量力；C中心距。8.1.3.2 测量程序将带安装在测长装置的两带轮上，施加总测量力，将带至少转动两圈以上，使带齿与轮齿啮合良好并使测量力均匀分配在带的两边。测量两带轮中心距。带长等于带轮节圆周长加两倍中心距。对于双面齿带应测量两齿面带长。表 29S 齿型测量带轮单位为毫米型号齿数Z节圆周长d外径do径向圆跳动端面圆跳动S3M,DS3M309018.3370.0130.025S5M,DS5M3015046.7860.0130.025S8M，DS8M3427285.2080.0130.0130.025S14M，DS14M40560175.
69、460.0250.0130.051表 30S 齿型带测量力型号测量力，N带宽，mm61015202530405055608085100115120170S3M,DS3M5295148S5MDS5M155249S8M，DS8M5707901020125017402240-27704120-GB/T -2027S14M，DS14M-2420-3480384053405720688080708470126008.2 S 齿型带轮8.2.1S 齿型带齿条刀具S齿型带轮齿条刀具尺寸及极限偏差见图23和表31。图 23S 齿型带轮齿条刀具表 31 加工 S 齿型带轮齿廓齿条刀具尺寸及极限偏差单位为毫米型号
70、齿数Pb0.012hr+0.050bt+0.050r1+0.050r20.03r30.03r40.03r50.10XWaYS3M14-152.7031.1250.1771.0250.3051.7440.0372.9650.7691.2010.381-0.16216-182.7461.6281.7910.2100.0712.628-0.3640.167-0.11519-232.7951.5011.7070.3050.0852.321-0.2900.239-0.05724-342.8511.6991.8260.5120.1032.043-0.1310.387-0.14535-592.9081.49
71、81.7121.4910.1211.8140.5661.091-0.09160-2162.9661.7641.8671.8050.1401.6230.8311.278-0.188S5M14-154.5431.7850.7931.9400.5752.8790.0964.6941.2701.8650.480-0.26316-184.6102.6842.9500.3360.1484.192-0.6890.247-0.14019-234.6842.4342.7920.4420.1673.757-0.5990.326-0.03824-344.7712.7672.9941.5590.1873.3380.2
72、071.127-0.18735-594.8592.4332.8032.4100.2122.9920.8871.670-0.09760-2164.9472.9273.0872.9860.2362.6991.3762.003-0.268S8M228.0002.8305.2005.3000.7502.7100.4004.0405.0401.1300.6860.686S8M22267.6112.8304.2204.7400.8000.2705.68-0.25627337.6890.2905.28-0.27934467.7670.3204.92-0.29947747.8440.3504.59-0.321
73、752167.9280.3804.28-0.342S14M2814.0004.9509.1009.2801.3104.8000.7007.0708.8401.9801.3971.397S14M283413.4414.9507.5008.3801.3600.5209.1700.784354713.5770.5608.5700.819GB/T -2028487513.7160.6108.0300.8567621613.8760.6607.4600.896注：选用的刀具尺寸代表原始专利权人设计，具体选用标准由生产厂家与用户自行协商。8.2.2 S 齿型带轮齿槽尺寸S 齿型带轮齿槽尺寸见图 24 和表
74、 32。图 24S 齿型带轮齿槽表 32S 齿型带轮齿槽尺寸及极限偏差单位为毫米齿型齿型齿数齿数Bg+0.10-0.00Hg0.03R50.01R40.01Rt+0.10-0.00R1+0.10-0.00节顶距aYS3M141.951.111.510.150.281.9750.3810.127S5M143.251.772.530.250.553.270.4800.099S8M225.202.834.040.400.755.300.6860.686S14M289.104.957.070.701.319.281.3971.397注意，Bg 表示为弧长，而不是直线长度。a 是皮带设计节距差。8.2.
75、3 带轮直径带轮节径和外径标准值见表 33,带轮外径和节径关系见图 25。带轮节径b/dZP。带轮外径 dod2a，节顶距 a 值见表 32。GB/T -2029说明：1节距；2同步带节线；3带齿；4节圆直径；5外径；6轮槽。图 25S 齿型带轮表 33S 齿型带轮直径单位为毫米齿数Z型号S3MS5MS8MS14M节径 d外径 do节径 d外径 do节径 d外径 do节径 d外径 do14151618202113.3714.3215.2817.1919.1020.0512.6113.5614.5216.4318.4319.2922.2823.8725.4628.6531.8333.4223.2
76、424.8326.4229.6132.7934.38222426282921.0122.9224.7326.7427.6920.1522.1624.0725.9826.9335.0138.2041.3844.5646.1535.9739.1642.3445.5247.1156.0261.1266.2171.3054.6559.7464.8469.93124.78129.23121.98126.44303234363828.6530.5632.4734.3836.2927.8929.8031.7133.6235.5347.7550.9354.1157.3060.4848.7151.8955.07
77、58.2661.4476.3981.4986.5891.6796.7775.0280.1285.2190.3095.39133.69142.60151.52160.43169.34130.90139.81148.72157.63166.55404448525638.2042.0245.8449.6653.4837.4441.2545.0748.8952.7163.6670.0376.3982.7689.1364.6270.9977.3583.7290.09101.86112.05122.23142.60100.49110.67120.86141.23178.25196.08213.90231.
78、73249.55175.46193.28211.11228.94246.76606468728057.3061.1264.4968.7575.3956.5360.3564.1767.9975.6395.49101.86108.23114.59127.3296.45102.82109.19115.55128.28162.97183.35203.72161.60181.97202.35267.38285.21303.03320.86356.51264.59282.41300.24318.06353.719011214416819221685.9485.18143.24144.20229.18285
79、.21366.69488.92227.81283.83365.32487.55401.07499.11641.71748.66855.62962.57398.28496.32638.92745.87852.82959.788.2.4 轮宽S齿型轮宽示意图见图26，标准轮宽及最小轮宽见表34，挡圈尺寸见附录B。GB/T -2030a)双边挡圈b）单边挡圈c)无挡圈图 26S 齿型轮宽示意图表 34S 齿型轮宽尺寸单位为毫米型号标准轮宽最小轮宽度有挡圈bf、bf无挡圈bfS3M6711101217151721S5M101116151722252732S8M152540601828436325355
80、070S14M406080100120436384104125557696116136注：如果传动系统带轮齿宽中心位置位于同一直线时，无挡圈带轮的轮宽可适当减小，但不能小于带挡圈带轮的最小轮宽。9 各型号带节线长及极限偏差各型号带节线长及极限偏差见表35。表35标准带节线长及极限偏差单位为毫米节线长极限偏差单面带双面带1272540.40+0.80-0.602543810.46+0.92-0.693815080.50+1.00-0.755087620.60+1.20-0.9076210160.66+1.32GB/T -2031-0.99101612700.72+1.44-1.081270152
81、40.82+1.64-1.23152417780.86+1.74-1.29177820320.92+1.84-1.38203222860.98+1.96-1.47228625401.04+2.08-1.56254027941.08+2.16-1.62279430481.12+2.24-1.68304833021.16+2.32-1.74330235561.20+2.40-1.80355638101.26+2.52-1.89381040641.32+2.64-1.98406443181.38+2.76-2.07431845721.44+2.88-2.16457248261.50+3.00-2.2
82、5482650801.56+3.12-2.34508053341.62+3.24-2.43533455881.68+3.36-2.52558858421.74+3.48-2.61584260961.80+3.60-2.70609663501.86+3.72-2.79635066041.92+3.84-2.88660468601.98+3.96-2.97注：双面带与标准长度的允许偏差是单面带正公差的2倍，负公差的1.5倍。GB/T -203210 各型号带轮尺寸极限偏差和几何公差10.1 节距偏差带轮相邻齿间的节距允许偏差及 90弧以内的节距累积允许偏差值见表 36。表 36节距偏差单位为毫米外
83、径d0节距允许偏差值任意两相邻齿间90弧内累积ad025.40.030.0525.4d050.80.0850.8d0101.60.11101.6d0177.80.13177.8d0304.80.15304.8d0508.00.18508d0762.00.20762.0d01016.00.23d01016.00.25a节距的允许偏差包括经过 90 弧的下一个全齿。10.2 带轮外径极限偏差带轮外径极限偏差见表37。表 37带轮外径极限偏差单位为毫米外径 d0极限偏差d025.4+0.05025.4d050.8+0.08050.8d0101.6+0.100101.6d0177.8+0.130177
84、.8d0304.8+0.150304.8d0508.0+0.180508.0d0762.0+0.200762.0d01016.0+0.230d01016.0+0.25010.3 端面圆跳动带轮端面圆跳动公差见表38。表 38带轮端面圆跳动单位为毫米外径 d0公差d025.40.0525.4d050.80.08GB/T -203350.8d010160.101016d0254.00.001d0d0254.00.25+0.0005（d0-254）10.4 径向圆跳动带轮径向圆跳动公差见表39。表 39带轮径向圆跳动单位为毫米外径 d0公差d025.40.0525.4d050.80.0750.8d0
85、10160.101016d0203.20.13d0203.20.13+0.0005（d0-203.2）10.5 平行度齿槽应与轮孔的轴线平行，其平行度公差见表40。表 40 带轮平行度单位为毫米轮宽公差b400.0340b1000.04100b1600.05160b2200.06220b02800.07280b3400.0810.6 圆柱度带轮圆柱度公差见表41。表 41 带轮圆柱度单位为毫米带轮标称宽度圆柱度公差b200.0220b400.0440b800.0880b1200.12120b1600.16160b3400.16+0.001（bf-160）11 带轮材质、表面粗糙度及平衡带轮材质
86、、表面粗糙度及平衡应符合GB/T 11357。GB/T 2034附录 A（规范性附录）节线长和中心距的关系A.1 曲线齿同步带节线长和中心距的关系见下列公式和图 A.1。ddddL2121p()()2c cos2180（A.1）式中：Lp带节线长，mm；C中心距，mm；d2大带轮节径，mm；d1小带轮节径，mm；sin-1(d2-d1)/2c,()。中心距近似值可由下式计算：()KKdd222132c16 （A.2）.()KLddp2146 28（A.3）说明：1节线。图 A.1 节线长和中心距的关系cGB/T -2035附录B（规范性附录）挡圈尺寸B.1 带轮挡圈尺寸见图B.1。说明：1锐角
87、倒钝；2带轮外径，do；3弯曲处直径，（do0.38）0.25，mm；4挡圈高度，h；5挡圈外径，do2h。6挡圈倒角 8-25 度。图 B.1挡圈尺寸GB/T -2036附录C(资料性附录)本标准与ISO 13050:2014相比的结构变化情况本标准与ISO 13050:2014相比在结构上有较多调整，具体章条编号对照情况见表C.1。表C.1 本标准与ISO 13050:2014的章条编号对照情况本标准章条编号对应的 ISO 13050:2014 章条编号11224.134.2.144.2.25565.16.15.1.16.1.15.1.26.1.25.1.36.1.35.26.2106.2
88、.15.2.16.2.25.2.26.2.35.2.36.2.45.2.46.2.5676.17.16.1.17.1.16.1.27.1.26.1.37.1.36.1.3.27.1.46.27.2107.2.16.2.17.2.26.2.27.2.36.2.37.2.46.2.47.2.5787.18.17.1.18.1.17.1.28.1.27.1.38.1.37.28.2108.2.17.2.18.2.27.2.28.2.37.2.38.2.47.2.48.2.5898.19.18.1.19.1.18.1.29.1.28.1.39.1.38.29.2109.2.18.2.19.2.2GB/
89、T -20378.2.29.2.38.2.39.2.48.2.49.2.59附录 A附录 A附录 B10附录 C附录 B附录 DGB/T -2038附录D(资料性附录)本标准与ISO 13050：2014的技术性差异及其原因表D.1给出了本标准与ISO 13050：2014的技术性差异及其原因。表D.1 本标准与ISO 13050：2014的技术性差异及其原因本标准章条编号技术性差异原因5.2.4 、6.2.4 、 7.2.4 、8.2.4轮宽增加了带轮宽中单边挡圈示意图及尺寸，调整了双边挡圈、单边挡圈与无挡圈图形的排列顺序。内容更加完善，适合国情。6.1.1、 7.1.1、 8.1.1将 I
90、SO13050:2014 中各型号的带部分齿形由单齿更改为双齿，并加注节距代号 Pb。结构更加合理8 S 齿型带和带轮增加了 S3M、DS3M、S5M、DS5M 型号带、带轮、齿条刀具尺寸。9 各型号带节线长及极限偏差将 ISO 13050：2014 规范性附录 A 内容移至现标准第 9 章。结构更加合理。10 各型号带轮尺寸极限偏差和几何公差11 带轮材质、 表面粗糙度及平衡将 ISO 13050：2014 规范性附录 C 内容移至现标准第 10 章和第11 章。结构更加合理。删除了 ISO 13050：2014 规范性附录 C 中锥度几何公差表述。表述不合理。附录 A 节线长和中心距的关系将中心距符号由 a 统一修改为 c。与术语保持一致。参考文献增加了参考文献。便于标准使用。GB/T -2039参考文献1GB/T 6931.1-xxxx 带传动术语 第 1 部分：带传动基本术语2GB/T 13487-2017 一般传动用同步带3GB/T 30172-2013 同步带传动 安装技术规范4GB/T 32072-2015带传动 抗静电同步带的导电性 要求和试验方法
