ThisZ7B type expansion joint sleeveFix to the proper position of the sleeve (hub), tighten the bolts according to the given torque, and the tapered inner ring applies radial force to the sleeve. This forced friction coupling can transmit large torque and load when the sleeve is clamped. The mating surface is under high pressure and sealed, which avoids the corrosion of the mating surface.When disassembling, loosen the bolts, the mating surface will automatically relax, and the shaft sleeve and cone ring will automatically return to the original size.This device is easy to disassemble and assemble, and is suitable for transmitting torque at medium and low speeds.
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, series
Z7C type—heavy series double cone locking disc type
Basic dimensions and parameters of Z7B expansion sleeve:
Basic size (mm) | Socket head cap screws | Rated load | Tightening torque MA (NM) |
Weight kg | e mm |
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d | D | dn | l | H | d1 | n | Axial force FtKN |
Torque Mt KN.M |
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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. |