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    Z7B type expansion joint sleeve
    product name:

    Z7B type expansion joint sleeve

    Product introduction:

    When the expansion sleeve is clamped, each mating surface has a high pressure and is completely sealed, which avoids the corrosion of the mating surface.When disassembling, loosen the bolts, the mating surface is automatically loosened, and the shaft sleeve and cone ring automatically return to the original size. This device is easy to disassemble and assemble, suitable for medium and low speed torque transmission.

    Markup example
    内径d=140mm,外径D=230mm的Z7B型胀紧联结套:胀套Z7B-140×230 JB/T7934-1999
    Z7 type expansion sleeve is divided into three series
    Z7A-Light Series Double Cone Locking Disc Type
    Z7B type—standard type series double cone locking disc type, preferred series
    Z7C type—heavy series double cone locking disc type

    The basic dimensions and parameters of the Z7B expansion sleeve:

    Basic size (mm) Socket head cap screws Rated load Tightening torque
    MA
    (NM)
    Weight kg e
    mm
    d D dn l H d1 n Axial force
    FtKN
    Torque Mt
    KN.M
    140 230 95 46 58 M12× 45 10 317 15.1 100 10 7
    100 352 17.6
    105 382 20.1
    155 263 105 50 62 M12× 50 12 419 22 15
    110 454 25
    115 487 28
    165 290 115 56 68 M16× 55 8 539 31 240 22
    120 583 35
    125 624 39
    175 300 125 640 40
    130 677 44
    135 711 48
    185 330 135 71 85 M16× 65 10 815 55 37 8
    140 857 60
    145 896 65
    195 350 140 12 928 65 41
    150 1013 76
    155 1052 81.5
    200 350 150 1040 78
    155 1084 84
    160 1125 90
    220 370 160 88 103 M16× 75 15 1250 100 470 54 10
    165 1309 108
    170 1365 116
    240 405 170 92 107 M20× 80 12 1412 120 67
    180 1533 138
    190 1642 156
    260 430 190 103 119 M20× 85 1726 164 82
    200 1840 184
    210 1943 204
    280 460 210 114 132 M20× 95 15 2062 217 102 12
    220 2227 245
    230 2374 273
    300 485 230 122 140 M20× 100 16 2278 262 118
    240 2442 293
    245 2514 308
    320 520 240 18 2550 306 131
    250 2720 340
    260 2877 374
    340 570 250 134 155 M20× 110 24 3152 394 186
    260 3308 430
    270 3452 466
    350 590 270 140 159 3393 458 204
    280 3572 500
    285 3656 521
    360 590 280 3622 507
    290 3793 550
    295 3878 572
    380 645 290 144 163 M24× 120 18 4069 590 820 820
    300 4267 640
    310 4452 690
    390 660 300 20 4400 660
    310 4580 710
    320 4750 760
    Note: The mechanical performance grade of Z7B expansion set screws is 12.9.
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