Z6 type expansion coupling sleeveThe main purpose of (referred to as the expansion sleeve) is to replace the connection of single keys and splines to realize the connection of mechanical parts (such as gears, flywheels, belt pulleys, etc.) and shafts to transmit loads. Its function is divided into expansion during use. Two categories with locking.
Expansion coupling sleeve as a kind of basic parts, industrially developed in the XNUMXs, such as Germany, Japan, etc., widely adopted this for mechanical coupling under heavy loads.In the connection of the wheel and the shaft, it is a keyless connection device that realizes the load transmission by tightening the bolts to make the pressure and friction between the containing surfaces realize the connection between the mechanical parts (such as gears, flywheels, pulleys, etc.) and the shaft. Connection to transfer load.When it is in use, through the action of bolts, a huge holding force is generated between the inner ring and the shaft, and between the outer ring and the hub; when under load, the torque is transmitted by the combined pressure of the expansion sleeve and the mechanical part and the accompanying frictional force. , Axial force or the combined load of the two.
The basic dimensions and parameters of the Z6 expansion sleeve:
A basic size (mm) Dimensions | Rated load | Socket head cap screws | Pressure on joint surface between expansion sleeve and shaft pt N / mm2 |
Pressure on the joint surface between expansion sleeve and wheel load pt N / mm2 |
weight kg |
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d | D | L4 | L3 | L2 | D1 | L1 | Axial force Ft kN |
Torque Mt kN. m |
d1 | n | MA N. m |
|||
14 16 18 19 20 22 24 25 28 30 |
55 55 55 55 55 55 55 55 55 55 |
17 17 17 17 17 17 17 17 17 17 |
30 30 30 30 30 30 30 30 30 30 |
22 22 22 22 22 22 22 22 22 22 |
62 62 62 62 62 62 62 62 62 62 |
38 38 38 38 38 38 38 38 38 38 |
18 18 18 18 18 25.5 25.5 25.5 31.5 31.5 |
127 142 157 165 172 285 307 315 435 472 |
M8 M8 M8 M8 M8 M8 M8 M8 M8 M8 |
3 3 3 3 3 3 3 3 3 3 |
25 25 25 25 25 35 35 35 41 41 |
208 181 161 152 145 186 170 163 175 163 |
52.5 52.5 52.5 52.5 52.5 75 75 75 89 89 |
0.48 0.47 0.46 0.46 0.45 0.44 0.42 0.41 0.39 0.37 |
24 25 28 30 32 35 38 40 |
65 65 65 65 65 65 65 65 |
17 17 17 17 17 17 17 17 |
30 30 30 30 30 30 30 30 |
22 22 22 22 22 22 22 22 |
72 72 72 72 72 72 72 72 |
38 38 38 38 38 38 38 38 |
37.4 37.4 43.6 43.6 43.6 52.5 52.5 52.5 |
440 460 600 640 690 910 990 1050 |
M8 M8 M8 M8 M8 M8 M8 M8 |
5 5 5 5 5 5 5 5 |
30 30 35 35 35 41 41 41 |
244 234 243 227 213 234 216 205 |
90 90 105 105 105 126 126 125 |
0.62 0.61 0.58 0.56 0.55 0.51 0.48 0.46 |
30 32 35 38 40 42 45 48 50 |
80 80 80 80 80 80 80 80 80 |
20 20 20 20 20 20 20 20 20 |
33 33 33 33 33 33 33 33 33 |
25 25 25 25 25 25 25 25 25 |
87 87 87 87 87 87 87 87 87 |
41 41 41 41 41 41 41 41 41 |
52.4 52.4 61 61 61 73.5 73.5 73.5 73.5 |
780 830 1060 1150 1220 1540 1650 1760 1830 |
M8 M8 M8 M8 M8 M8 M8 M8 M8 |
7 7 7 7 7 7 7 7 7 |
30 30 35 35 35 41 41 41 41 |
232 217.5 232 214 203 233 217 203 195 |
87 87 102 102 102 122 122 122 122 |
1.01 0.99 0.96 0.92 0.89 0.86 0.82 0.76 0.73 |