{"id":638,"date":"2026-09-18T03:35:29","date_gmt":"2026-09-18T03:35:29","guid":{"rendered":"https:\/\/htdpulley.top\/product\/htd-8m-20-timing-pulley\/"},"modified":"2026-09-18T06:27:47","modified_gmt":"2026-09-18T06:27:47","slug":"htd-8m-20-timing-pulley","status":"publish","type":"product","link":"https:\/\/htdpulley.top\/zh-cn\/product\/htd-8m-20-timing-pulley\/","title":{"rendered":"HTD 8M-20 Timing Pulley"},"content":{"rendered":"
\n
\u4ea7\u54c1\u6982\u8ff0<\/span><\/p>\n

HTD 8M-20 Timing Pulley Configuration Overview<\/h2>\n<\/div>\n

8M-20 HTD Timing Pulley<\/strong> is a 8 mm pitch synchronous pulley family with a nominal belt-face reference of 20 in the catalogue naming system. This page treats the series as a configurable industrial component rather than a single fixed SKU. Tooth count changes pulley diameter and may also change hub, flange, material or mounting details, so the order must be tied to a specific catalogue row or an approved drawing.<\/p>\n

\u91c7\u8d2d\u65f6\uff0c\u9996\u5148\u8981\u786e\u5b9a\u5b8c\u6574\u7684\u76ae\u5e26\u578b\u53f7\uff0c\u5e76\u786e\u8ba4\u914d\u5957\u76ae\u5e26\u662f\u5426\u91c7\u7528\u76f8\u540c\u7684 HTD 8M \u9f7f\u5f62\u3002\u4ec5\u51ed\u8282\u8ddd\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u6240\u6709\u66f2\u7ebf\u76ae\u5e26\u7cfb\u5217\u90fd\u80fd\u5b89\u5168\u4e92\u6362\u3002\u786e\u8ba4\u9f7f\u5f62\u540e\uff0c\u9009\u62e9\u9f7f\u6570\u548c\u5de5\u4f5c\u5bbd\u5ea6\uff0c\u7136\u540e\u68c0\u67e5\u8f74\u63a5\u53e3\u3001\u8f6e\u6bc2\u51f8\u51fa\u90e8\u5206\u3001\u6cd5\u5170\u5e03\u7f6e\u548c\u53ef\u7528\u6750\u6599\u3002\u6b64\u6b65\u9aa4\u53ef\u51cf\u5c11\u5e38\u89c1\u7684\u4ec5\u5339\u914d\u5916\u5f84\u800c\u5ffd\u7565\u9f7f\u5f62\u6216\u5b89\u88c5\u51e0\u4f55\u5f62\u72b6\u7684\u66f4\u6362\u9519\u8bef\u3002<\/p>\n

\u672c\u7cfb\u5217\u76f4\u5b54\u5f0f\u76ae\u5e26\u4f20\u52a8\u88c5\u7f6e\u4e13\u4e3a\u6b63\u540c\u6b65\u52a8\u529b\u4f20\u8f93\u800c\u8bbe\u8ba1\u3002\u5178\u578b\u5e94\u7528\u9886\u57df\u5305\u62ec\u673a\u5e8a\u3001\u8f93\u9001\u673a\u548c\u9ad8\u8d1f\u8377\u5de5\u4e1a\u8fd0\u52a8\u8bbe\u5907\u3002\u5b9e\u9645\u9002\u7528\u6027\u53d6\u51b3\u4e8e\u8f6c\u901f\u3001\u4f20\u8f93\u8d1f\u8f7d\u3001\u4e2d\u5fc3\u8ddd\u3001\u76ae\u5e26\u7ed3\u6784\u3001\u5bf9\u51c6\u60c5\u51b5\u3001\u8fd0\u884c\u73af\u5883\u548c\u8f74\u652f\u6491\u7b49\u56e0\u7d20\u3002\u5bf9\u4e8e\u65b0\u5b89\u88c5\u7684\u4f20\u52a8\u88c5\u7f6e\u6216\u73b0\u6709\u8bbe\u5907\u53cd\u590d\u51fa\u73b0\u76ae\u5e26\u8dd1\u504f\u6216\u78e8\u635f\u95ee\u9898\u7684\u60c5\u51b5\uff0c\u5e94\u63d0\u4f9b\u8fd9\u4e9b\u5de5\u51b5\u4fe1\u606f\u3002<\/p>\n<\/section>\n

\n
\u6ca5\u9752<\/span>8M<\/strong><\/div>\n
\u7cfb\u5217\u5bbd\u5ea6\u4ee3\u7801<\/span>20<\/strong><\/div>\n
\u5bb6\u65cf<\/span>\u76f4\u5b54<\/strong><\/div>\n
\u8ba2\u8d2d\u65b9\u5f0f<\/span>\u76ee\u5f55\u884c\u6216\u56fe\u7eb8<\/strong><\/div>\n<\/section>\n
\n

8M-20 Construction and Shaft Interface<\/h2>\n

8M-20<\/strong> belongs to the 8M HTD family and this page covers straight-bore construction. The catalogue table on this page spans 22\u201390 teeth. Construction codes visible in the table include 2F, 3F, 3. Use the exact product code with the tooth count because the hub\/flange arrangement can change inside one width series.<\/p>\n

\u5bbd\u5ea6\u4ee3\u7801 20<\/strong> \u672c\u4ea7\u54c1\u76ee\u5f55\u4ec5\u7528\u4e8e\u8bc6\u522b\u8be5\u7cfb\u5217\u4ea7\u54c1\uff1b\u5b83\u4e0d\u80fd\u66ff\u4ee3\u5bf9\u914d\u5957\u76ae\u5e26\u6807\u8bb0\u548c\u5c3a\u5bf8\u56fe\u7684\u68c0\u67e5\u3002\u8fdb\u884c\u66f4\u6362\u4f5c\u4e1a\u65f6\uff0c\u8bf7\u4fdd\u7559\u5df2\u5b89\u88c5\u7684\u76ae\u5e26\u7ebf\uff0c\u5e76\u5728\u786e\u5b9a\u4f7f\u7528\u9f7f\u5f62\u6b63\u786e\u7684\u76ae\u5e26\u6392\u4f5c\u4e3a\u673a\u68b0\u66ff\u4ee3\u54c1\u4e4b\u524d\uff0c\u6d4b\u91cf\u8f74\u4fa7\u51e0\u4f55\u5f62\u72b6\u3002<\/p>\n

\"8M-20<\/figure>\n<\/section>\n
\n

Read the 8M-20 Dimension View Before the Table<\/h2>\n

\u5c3a\u5bf8\u6807\u6ce8\u89c6\u56fe\u89e3\u91ca\u4e86 Dp\u3001De\u3001Df\u3001Dm\u3001Di\u3001F\u3001L \u7b49\u7b26\u53f7\u4ee5\u53ca\u5b54\u5f84\u76f8\u5173\u5b57\u6bb5\u4e0e\u65bd\u5de5\u56fe\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u8bf7\u5c06\u56fe\u7eb8\u548c\u540c\u4e00\u4ea7\u54c1\u884c\u4e00\u8d77\u4f7f\u7528\uff1b\u4e0d\u8981\u4ec5\u4ec5\u56e0\u4e3a\u8282\u8ddd\u548c\u9f7f\u6570\u5339\u914d\u5c31\u4ece\u5176\u4ed6\u65bd\u5de5\u7c7b\u578b\u4e2d\u8f6c\u79fb\u5c3a\u5bf8\u3002<\/p>\n

For 8M-20, record the values that control installation\u2014working face, hub projection, flange envelope and shaft connection\u2014against a stable machine datum. If a finished bore, keyway or tolerance is not defined by the catalogue row, add it on the RFQ or controlled drawing instead of assuming a universal value.<\/p>\n

\"8M-20<\/figure>\n<\/section>\n
\n

8M-20 Technical Specification Table<\/h2>\n

\u4ee5\u4e0b\u6570\u503c\u6458\u81ea\u672c\u7cfb\u5217\u6240\u9009\u540c\u6b65\u5e26\u8f6e\u4ea7\u54c1\u76ee\u5f55\u3002\u8be2\u4ef7\u65f6\u8bf7\u540c\u65f6\u4f7f\u7528\u4ea7\u54c1\u4ee3\u7801\u548c\u9f7f\u6570\u3002\u5c3a\u5bf8\u4e3a\u4ea7\u54c1\u76ee\u5f55\u503c\uff1b\u6700\u7ec8\u8f74\u914d\u5408\u3001\u952e\u69fd\u3001\u8868\u9762\u5149\u6d01\u5ea6\u548c\u68c0\u9a8c\u8981\u6c42\u5e94\u5728\u8be2\u4ef7\u5355\u6216\u56fe\u7eb8\u4e2d\u6ce8\u660e\u3002<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u4ee3\u7801<\/th>\n\u7c7b\u578b<\/th>\n\u7259\u9f7f<\/th>\nDP<\/th>\n\u5fb7<\/th>\n\u81ea\u7531\u5ea6<\/th>\n\u6697<\/th>\n\u8fea<\/th>\nF<\/th>\nL<\/th>\nd<\/th>\n\u6cd5\u5170<\/th>\n\u7ea6\u5343\u514b<\/th>\n<\/tr>\n<\/thead>\n
22-8M-20<\/td>\n2F<\/td>\n22<\/td>\n56,02<\/td>\n54,65<\/td>\n60<\/td>\n43<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n12<\/td>\n308<\/td>\n0,54<\/td>\n<\/tr>\n
24-8M-20<\/td>\n2F<\/td>\n24<\/td>\n61,11<\/td>\n59,74<\/td>\n66<\/td>\n45<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n12<\/td>\n310<\/td>\n0,65<\/td>\n<\/tr>\n
26-8M-20<\/td>\n2F<\/td>\n26<\/td>\n66,21<\/td>\n64,84<\/td>\n71<\/td>\n48<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n12<\/td>\n311<\/td>\n0,80<\/td>\n<\/tr>\n
28-8M-20<\/td>\n2F<\/td>\n28<\/td>\n71,30<\/td>\n70,08<\/td>\n75<\/td>\n50<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n312<\/td>\n0,88<\/td>\n<\/tr>\n
30-8M-20<\/td>\n2F<\/td>\n30<\/td>\n76,39<\/td>\n75,13<\/td>\n83<\/td>\n55<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n314<\/td>\n1,00<\/td>\n<\/tr>\n
32-8M-20<\/td>\n2F<\/td>\n32<\/td>\n81,49<\/td>\n80,16<\/td>\n87<\/td>\n60<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n315<\/td>\n1,20<\/td>\n<\/tr>\n
34-8M-20<\/td>\n2F<\/td>\n34<\/td>\n86,58<\/td>\n85,21<\/td>\n91<\/td>\n66<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n316<\/td>\n1,40<\/td>\n<\/tr>\n
36-8M-20<\/td>\n2F<\/td>\n36<\/td>\n91,67<\/td>\n90,30<\/td>\n98,5<\/td>\n70<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n319<\/td>\n1,60<\/td>\n<\/tr>\n
38-8M-20<\/td>\n2F<\/td>\n38<\/td>\n96,77<\/td>\n95,39<\/td>\n103<\/td>\n75<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n320<\/td>\n1,70<\/td>\n<\/tr>\n
40-8M-20<\/td>\n2F<\/td>\n40<\/td>\n101,86<\/td>\n100,49<\/td>\n106<\/td>\n75<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n321<\/td>\n1,85<\/td>\n<\/tr>\n
44-8M-20<\/td>\n2F<\/td>\n44<\/td>\n112,05<\/td>\n110,67<\/td>\n119<\/td>\n75<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n325<\/td>\n2,10<\/td>\n<\/tr>\n
48-8M-20<\/td>\n2F<\/td>\n48<\/td>\n122,23<\/td>\n120,86<\/td>\n127<\/td>\n75<\/td>\n–<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n327<\/td>\n2,50<\/td>\n<\/tr>\n
56-8M-20<\/td>\n3F<\/td>\n56<\/td>\n142,60<\/td>\n141,23<\/td>\n148<\/td>\n80<\/td>\n116<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n333<\/td>\n2,82<\/td>\n<\/tr>\n
64-8M-20<\/td>\n3F<\/td>\n64<\/td>\n162,97<\/td>\n161,60<\/td>\n168<\/td>\n80<\/td>\n137<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n338<\/td>\n3,22<\/td>\n<\/tr>\n
72-8M-20<\/td>\n3F<\/td>\n72<\/td>\n183,35<\/td>\n181,97<\/td>\n192<\/td>\n80<\/td>\n158<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n340<\/td>\n3,74<\/td>\n<\/tr>\n
80-8M-20<\/td>\n3<\/td>\n80<\/td>\n203,72<\/td>\n202,35<\/td>\n–<\/td>\n90<\/td>\n180<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n–<\/td>\n3,78<\/td>\n<\/tr>\n
90-8M-20<\/td>\n3<\/td>\n90<\/td>\n229,18<\/td>\n227,81<\/td>\n–<\/td>\n90<\/td>\n204<\/td>\n28<\/td>\n38<\/td>\n14<\/td>\n–<\/td>\n4,57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
\n

Where the 8M-20 Family Fits<\/h2>\n

8M-20 is part of the 8M family used for industrial synchronous drives where tooth count, construction type, bore or bush and axial installation space should be reviewed together. Application suitability is not determined by pitch alone. A new drive still needs the required speed relationship, load or torque basis, center distance, environment and service conditions before the pulley row can be finalized.<\/p>\n

\u66f4\u6362\u76ae\u5e26\u65f6\uff0c\u6700\u5b89\u5168\u7684\u51fa\u53d1\u70b9\u662f\u4fdd\u6301\u73b0\u6709\u76ae\u5e26\/\u578b\u6750\u7684\u89c4\u683c\u548c\u9f7f\u6570\u4e0d\u53d8\u3002\u6539\u53d8\u9f7f\u6570\u4f1a\u6539\u53d8\u8282\u5706\u76f4\u5f84\u548c\u4f20\u52a8\u6bd4\uff0c\u800c\u6539\u53d8\u5b89\u88c5\u7ed3\u6784\u5219\u53ef\u80fd\u6539\u53d8\u76ae\u5e26\u7684\u8d70\u5411\u6216\u5f71\u54cd\u62c6\u5378\u3002<\/p>\n

\"8M-20<\/figure>\n<\/section>\n
\n

Material and Construction Choices for 8M-20<\/h2>\n

Use the material and construction shown for the exact 8M-20 product code or approved drawing. Do not identify pulley material from color, surface appearance or a photograph. Where a project requests a different material, finish, hub, flange or shaft feature, treat that as a custom requirement and review its effect on dimensions and inspection before quotation.<\/p>\n

Within the 22\u201390 teeth range, construction codes can vary. That variation is why the product code, tooth count and construction view should remain together in the order record.<\/p>\n

\"8M-20<\/figure>\n<\/section>\n
\n

Installation Checks for 8M-20<\/h2>\n

Before installation, compare the new pulley with the released 8M-20 row or drawing. Verify the shaft connection, axial position, flange condition and belt line before tension is applied. The belt should enter the pulley without being forced sideways by a misaligned shaft, displaced hub or incorrect spacer arrangement.<\/p>\n

\u7ec4\u88c5\u5b8c\u6210\u540e\uff0c\u68c0\u67e5\u5bf9\u5b9e\u9645\u673a\u5668\u81f3\u5173\u91cd\u8981\u7684\u7279\u6027\u2014\u2014\u5b89\u88c5\u7262\u56fa\u6027\u3001\u5bf9\u51c6\u60c5\u51b5\u3001\u81ea\u7531\u65cb\u8f6c\u3001\u76ae\u5e26\u8ddf\u8e2a\u4ee5\u53ca\u56fe\u7eb8\u89c4\u5b9a\u7684\u4efb\u4f55\u8df3\u52a8\u6216\u8f74\u5411\u4f4d\u7f6e\u3002\u5982\u679c\u8bbe\u5907\u56fe\u7eb8\u6216\u8ba2\u5355\u56fe\u7eb8\u53e6\u6709\u89c4\u5b9a\uff0c\u8bf7\u52ff\u91c7\u7528\u901a\u7528\u516c\u5dee\u3002<\/p>\n

\"8M-20<\/figure>\n<\/section>\n
\n

\u8ba2\u8d2d\u3001\u6837\u54c1\u548c\u5546\u4e1a\u8ba1\u5212<\/h2>\n
\n
\u6700\u5c0f\u8d77\u8ba2\u91cf<\/strong><\/p>\n

\u6700\u4f4e\u8ba2\u8d2d\u91cf\u6839\u636e\u4ea7\u54c1\u7c7b\u578b\u3001\u751f\u4ea7\u5de5\u827a\u548c\u8ba2\u5355\u603b\u91d1\u989d\u800c\u5b9a\u3002\u6807\u51c6\u76ee\u5f55\u96f6\u4ef6\u901a\u5e38\u9075\u5faa\u6700\u4f4e\u751f\u4ea7\u6570\u91cf\u8981\u6c42\u3002<\/p>\n<\/article>\n

\u6837\u54c1<\/strong><\/p>\n

\u65b0\u5ba2\u6237\u5728\u914d\u7f6e\u548c\u751f\u4ea7\u8def\u7ebf\u5408\u9002\u65f6\u53ef\u7d22\u53d61-5\u4ef6\u6837\u54c1\u3002\u6837\u54c1\u4ef7\u683c\u53e6\u8ba1\u3002<\/p>\n<\/article>\n

\u6df7\u5408\u8ba2\u5355<\/strong><\/p>\n

\u4e0d\u540c\u578b\u53f7\u7684\u6ed1\u8f6e\u53ef\u4ee5\u5408\u5e76\u8ba2\u8d2d\u3002\u6df7\u5408\u578b\u53f7\u8ba2\u5355\u7684\u901a\u5e38\u89c4\u5212\u70b9\u662f\u603b\u8ba2\u5355\u91d1\u989d\u7ea6\u4e3a 1500 \u7f8e\u5143\u3002<\/p>\n<\/article>\n

\u6570\u91cf\u5c11<\/strong><\/p>\n

\u4ec5\u53ef\u8003\u8651\u5de5\u7a0b\u9a8c\u8bc1\u6216\u5408\u683c\u7684\u4ed8\u8d39\u6837\u54c1\u8981\u6c42\uff0c\u800c\u4e0d\u53ef\u4f5c\u4e3a\u96f6\u552e\u8ba2\u5355\uff1b\u5355\u4ef7\u4e5f\u76f8\u5e94\u8f83\u9ad8\u3002<\/p>\n<\/article>\n

\u8ba1\u5212\u63d0\u524d\u671f<\/strong><\/p>\n

\u6807\u51c6\u4ef6\uff1a\u901a\u5e38\u9700\u8981 10-25 \u4e2a\u5de5\u4f5c\u65e5\u3002\u5b9a\u5236\u7ec4\u4ef6\uff1a\u901a\u5e38\u9700\u8981 20-45 \u4e2a\u5de5\u4f5c\u65e5\u3002\u9879\u76ee\u7ec4\u88c5\u6216\u76f8\u5173\u8bbe\u5907\uff1a45-120 \u4e2a\u5de5\u4f5c\u65e5\uff08\u5982\u9002\u7528\uff09\u3002\u6700\u7ec8\u4ea4\u8d27\u65f6\u95f4\u5c06\u5728\u56fe\u7eb8\u3001\u6750\u6599\u548c\u6570\u91cf\u5ba1\u6838\u540e\u786e\u8ba4\u3002<\/p>\n<\/article>\n

\u8d38\u6613\u6761\u6b3e<\/strong><\/p>\n

EXW\u3001FOB\u3001CIF \u548c DAP \u662f\u5e38\u89c1\u7684\u8d38\u6613\u6761\u6b3e\u3002FCA\u3001CFR\u3001CPT\u3001CIP \u548c DDP \u53ef\u6839\u636e\u5177\u4f53\u7684\u8d27\u7269\u548c\u76ee\u7684\u5730\u8fdb\u884c\u534f\u5546\u3002<\/p>\n<\/article>\n<\/div>\n<\/div>\n