型号Z2特性Z2型胀紧套由一个开口的双锥内环，一个开口的双锥外环和两个双锥压紧环组成。用内六角螺栓拧紧，拧紧时弹性环没有相对于轴毂的轴向移动，与Z1型比较，同样压紧力能产生更大的径向压力，传递更大的载荷。为便于拆卸，在一个压紧环上有拆卸用螺孔，沿圆周共有2~4处。广泛应用于包装、印刷、纺织、机床等机械上。Z2型胀紧联结套的基本尺寸参数：(JB/T7934-1999)基本尺寸额定负荷胀套与轴结合面上的压力PfN/mm2胀套与轮毂结合面上的压力Pf′N/mm2螺钉的拧紧力矩MAN·m重量kgdDlLL1d1n轴向力F1KN转矩M1KN·mmm2047172O27.5M68270.2721090140.24220.30195900.2325509300.3819095O.25285510330.47185950.30300.50175950.29356012400.701801050.32386314460.881851050.3340650.921801100.344272202433.5M812651.36200117350.484575721.622101250.575080711.771901150.60558514832.272001300.6360902.471801200.69659516933.041901300.7370110242839.0M1O141324.60210130701.26751151314.901951251.33801205.201801201.4085125161486.301951301.49901301476.601801251.5395135181677.901951351.62100145293347.0M12141929.601351252.011051501909.981851302.1011015519110.501801252.151201651621813.101851352.351251701822013.781801302.95130180343852.02027217.601651203.511401902229820.901651253.851502002432424.201701254.071602102635028.001304.30170225384460M142238632.801601201905.781802352442037.801651256.051902504652682849046.501501158.252002603052552.501501158.65210275505674M162459962.8915111529510.102202852662068.0015011511.222403053071585.5016012512.202503153276896.0016212512.7026032534800104.0016513013.20280355606686.5M1832915128.0014511540519.20300375361020153.0015012020.503204057278100.5M201310210.0012058029.60340425224.0014511531.103604558490116.0M221630294.0011578042.203804751620308.0013511044.004004951610322.0013010546.00420515401780374.0013511050.0045055596102130.0M24402050461.25124100100065.00480585422160518.4010071.00500605442240560.0012310072.60530640452330617.0012110083.60560670482440680.0012010085.00600710502580775.0011810091.00630740522680844.0011710594.00670780562820944.00116100101.007108206029701054.00115100106.007508606231301173.00115100112.008009106632601300.00112100118.008509607035001487.00113100125.0090010107536801650.00112100132.0095010608038701838.00100139.00100011108240002000.00110100146.00胀套联结独特的优点:（一）使用胀套使主机零件制造和安装简单。安装胀套的轴和孔的加工不像过盈配合那样要求高精度的制造公差。胀套安装时无须加热，冷却或加压设备，只需将螺栓按要求的力矩拧紧即可。且调整方便，可以将轮毂在轴上方便地调整到所需位置。胀套也可用来联结焊接性差的零件。（二）胀套的使用寿命长，强度高。胀套依靠摩擦传动，对被联结件没有键槽削弱，也无相对运动，工作中不会产生磨损。（三）胀套在超载时，将失去联结作用，可以保护设备不受损害。（四）胀套联结可以承受多重负荷，其结构可以做成多种样式。根据安装负荷大小，还可以多个胀套串联使用。（五）胀套拆卸方便，且具有良好的互换性。由于胀套能把较大配合间隙的轴毂结合起来，拆卸时将螺栓拧松，即可使被联结件容易拆。胀紧时，接触面紧密贴合不易锈蚀，也便于拆开。)