Hebei Z7C Expansion Coupling Sleeve
The Z7C expansion coupling sleeve is a keyless coupling device between the shaft and the sleeve. This device can apply a clamping force to the sleeve from the outside to form a mechanical compression fit between the shaft and the sleeve to transmit torque and expand. The tight sleeve itself does not transmit any torque or load.
Advantages of Z7C Expansion Coupling Sleeve:
Compared with the general interference connection and the keyed connection, the expansion sleeve connection has many advantages:
1 The use of expansion sleeves makes the manufacture and installation of main machine parts simple.The processing of the shaft and hole for installing the expansion sleeve does not require manufacturing tolerances like interference fit.There is no need for heating, cooling or pressurizing equipment when installing the expansion sleeve, just tighten the bolts according to the required torque.The adjustment is convenient, and the hub can be conveniently adjusted to the desired position on the shaft.The expansion sleeve can also be used to connect parts with poor weldability.
2 The expansion sleeve has a long service life.The expansion sleeve relies on friction transmission, and there is no keyway weakening to the connected parts, and there is no relative movement, and there is no wear during work.
3 When the expansion sleeve is overloaded, it will lose its connection and protect the equipment from damage.
4 The expansion sleeve connection can bear multiple loads, and its structure can be made into a variety of styles.According to the installation load, multiple expansion sleeves can also be used in series.
5 The expansion sleeve is easy to disassemble and has good interchangeability.Since the expansion sleeve can combine the shaft hub with a larger fit gap, the bolts are loosened when disassembling, so that the connected parts can be easily disassembled.When swelling tightly, the contact surface is tightly attached and it is not easy to produce rust, and it is also convenient for connection and disassembly.
Installation reference example
Parameters of Z7C Expansion Coupling Sleeve
| basic size | Socket head cap screws | Rated load | Screw tightening torque MA N·m | weight kg | |||||||
| d | D | dn | l | H | e | d1 | n | Axial force F1 KN | Torque M1 KN·m | ||
| mm | |||||||||||
| 140 | 230 | 95 | 60 | 74 | 7 | M12 × 55 | 12 | 436 | 20.7 | 100 | 13 |
| 100 | 480 | 24.0 | |||||||||
| 105 | 518 | 27.2 | |||||||||
| 155 | 263 | 105 | 66 | 80 | M12 × 60 | 15 | 545 | 28.6 | 20 | ||
| 110 | 591 | 32.5 | |||||||||
| 115 | 633 | 36.4 | |||||||||
| 165 | 290 | 115 | 72 | 88 | 8 | M16 × 65 | 10 | 701 | 40.3 | 240 | 26 |
| 120 | 758 | 45.5 | |||||||||
| 125 | 811 | 50.7 | |||||||||
| 175 | 300 | 125 | 832 | 52 | 29 | ||||||
| 130 | 880 | 57.2 | |||||||||
| 135 | 924 | 62.4 | |||||||||
| 185 | 330 | 135 | 92 | 112 | 10 | M16 × 80 | 15 | 1037 | 70 | 47 | |
| 140 | 1100 | 77 | |||||||||
| 145 | 1159 | 84 | |||||||||
| 200 | 350 | 145 | 1291 | 93 | 50 | ||||||
| 150 | 1353 | 101.5 | |||||||||
| 155 | 1409 | 109.2 | |||||||||
| 220 | 370 | 160 | 114 | 134 | M16 × 90 | 20 | 1625 | 130 | 240 | 65 | |
| 165 | 1703 | 140.5 | |||||||||
| 170 | 1776 | 151 | |||||||||
| 240 | 405 | 170 | 120 | 144 | 12 | M20 × 100 | 15 | 1835 | 156 | 470 | 87 |
| 180 | 1994 | 179.5 | |||||||||
| 190 | 2137 | 203 | |||||||||
| 260 | 430 | 190 | 136 | 160 | M20 × 110 | 16 | 2242 | 213 | 100 | ||
| 200 | 2390 | 239 | |||||||||
| 210 | 2542 | 265 | |||||||||
| 280 | 460 | 210 | 148 | 172 | M20 × 110 | 20 | 2686 | 282 | 132 | ||
| 220 | 2900 | 319 | |||||||||
| 230 | 3087 | 355 | |||||||||
| 300 | 485 | 230 | 152 | 176 | M20 × 120 | 2965 | 341 | 140 | |||
| 240 | 3175 | 381 | |||||||||
| 245 | 3273 | 401 | |||||||||
| 320 | 520 | 240 | 160 | 184 | M20 × 130 | 24 | 3317 | 398 | 165 | ||
| 250 | 3536 | 442 | |||||||||
| 260 | 3738 | 486 | |||||||||
| 340 | 570 | 250 | 176 | 200 | M24 × 130 | 20 | 4080 | 510 | 820 | 240 | |
| 260 | 4307 | 560 | |||||||||
| 270 | 4519 | 610 | |||||||||
| 360 | 590 | 280 | 180 | 204 | M24 × 140 | 4707 | 659 | 250 | |||
| 290 | 4931 | 715 | |||||||||
| 295 | 5044 | 744 | |||||||||
| 390 | 660 | 300 | 188 | 212 | M24 × 140 | 24 | 5733 | 860 | 350 | ||
| 310 | 5903 | 915 | |||||||||
| 320 | 6063 | 970 | |||||||||
| 420 | 690 | 330 | 214 | 238 | M24 × 150 | 28 | 6182 | 1020 | 410 | ||
| 340 | 6470 | 1100 | |||||||||
| 350 | 6743 | 1180 | |||||||||
| 460 | 770 | 360 | 224 | 252 | 14 | M27 × 170 | 24 | 7222 | 1300 | 1210 | 540 |
| 370 | 7514 | 1390 | |||||||||
| 380 | 7789 | 1480 | |||||||||
| 500 | 850 | 400 | 246 | 274 | M27 × 180 | 30 | 9400 | 1880 | 750 | ||
| 410 | 9659 | 1980 | |||||||||
| 420 | 9905 | 2080 | |||||||||
| Note: The mechanical performance grade of Z7C type expansion coupling set screws is 10.9. | |||||||||||
Hebei Z7C Expansion Coupling Sleeve Hebei Z7C Expansion Coupling Sleeve
