同步轮各种规格、型号主要部位理论尺寸表(挡边尺寸仅供参考)
L 型 (节距=9.525mm )规格齿数节径 d外径 do档边直径 df档边内径 db档边厚度 h12L1236.3835.624027113L1339.4138.654432114L1442.4541.684929115L1545.4844.725136116L1648.5147.755439117L1751.5450.7861451.518L1854.5753.8161451.519L1957.6156.8461451.520L2060.6459.8864481.521L2163.6762.9168521.522L2266.7065.9475551.523L2369.7368.9775551.524L2472.7772.0080601.525L2575.8075.0482641.526L26 78.8378.0786701.527L27 81.8681.1086701.528L28 84.8984.1390701.530L30 90.9690.2098781.532L32 97.0296.26102901.534L34 103.08102.32108.5901.536L36 109.15108.39115951.538L38 115.21114.451231031.540L40 121.28120.511311111.542L42 127.34126.581381181.544L44 133.40132.641461261.546L46 139.47138.711531331.548L48 145.53144.77 50L50 151.60150.83 60L60 181.91181.15 72L72 218.30217.53 84L84 254.68253.92 96L96 291.06290.30 同步带轮外径、节径示意图注:
Pb=同步带轮节圆或同步带节线上测得相邻两齿的距离。
d=同步带轮的节圆直径。
do=同步带轮实际外圆直径。同步带轮基本形状结构图例同步带轮主要部位尺寸允许差值同步带轮节距公差同步带轮外径公差轮外径允许差值任意两相临齿间90弧内约允差≤25.40 00.030.05>25.40-50.800.030.08>50.80-101.600.030.10>101.60-177.800.030.13>177.80-304.800.030.15>304.80-508.000.030.18>508.000.030.20轮外径允许偏差≤25.4+0.05
025.40-50.80+0.08
050.80-101.60+0.10
0101.60-177.80+0.13
0177.80-304.80+0.15
0304.80-508.00+0.18
0508.00+0.20
0 同步轮端面允许跳动量同步轮径向允许跳动量轮外径允许跳动量≤101.600.10>101.60-254.00轮外径×0.001>254.000.25+(轮外径-254.00)×0.005轮外径允许值≤203.200.13>203.200.13+(轮外径-203.20)×0.005