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Description:
Type Z3 is a keyless shaft power lock. It can replace single keyway and spline ,in order to realize the connection between machinery parts (such as gear wheel,flywheel) and shafts,so the loading can be transmitted.Through the function of high strength of bolt when locking device is working,enormous strengh of tight holding power between hub, inner loop and shaft are produced.When bearing the weight and loading depend on connection power between locking device and machinery and additional frictional torce to transmission torsion or power on shaft.

Parameter of Z3 steel bushing with 12 locking screw
| DIMENSION | Bolt
| Rated Load | Pressure on shaft Pf N/mm2 | Pressure on hub Pf' N/mm2 | Torque of tighten locking-bolt MA N·m | Weight [Kg] | ||||||
d | D | L | L1 | L2 | d1 | n | Axial Force Ft [kN] | Torque Mt [kN·m] | ||||
20 22 25 28 30 | 47 47 50 55 55 | 37 37 37 37 37 | 31 31 31 31 31 | 22 22 22 22 22 | M6 M6 M6 M6 M6 | 4 4 5 5 5 | 30 30 35 35 35 | 0.30 0.33 0.44 0.49 0.53 | 287 260 287 256 239 | 90 90 106 96 96 | 17 17 17 17 17 | 0.29 0.27 0.30 0.36 0.34 |
35 40 45 50 55 | 60 65 75 80 85 | 37 37 46 46 46 | 31 31 38 38 38 | 22 22 25 25 25 | M6 M6 M8 M8 M8 | 6 6 6 6 7 | 45 45 80 80 90 | 0.81 0.94 1.86 2.07 2.54 | 246 215 283 255 270 | 106 98 134 128 138 | 17 17 41 41 41 | 0.38 0.41 0.70 0.76 0.82 |
60 65 70 75 80 | 90 95 110 115 120 | 46 46 60 60 60 | 38 38 50 50 50 | 25 25 33 33 33 | M8 M8 M10 M10 M10 | 7 8 7 7 7 | 90 105 140 140 140 | 2.77 3.58 5.10 5.46 5.85 | 247 261 244 228 214 | 130 141 128 119 112 | 41 41 83 83 83 | 0.88 0.94 2.10 2.20 2.30 |
85 90 95 100 105 | 125 130 135 145 150 | 60 60 60 68 68 | 50 50 50 58 58 | 33 33 33 41 41 | M10 M10 M10 M10 M10 | 8 8 10 10 10 | 175 175 205 220 220 | 7.45 7.90 9.90 11.00 11.55 | 230 217 257 192 210 | 129 124 149 114 114 | 83 83 83 83 83 | 2.4 2.6 2.7 3.7 3.9 |
110 120 125 130 140 150 | 155 165 170 180 190 200 | 68 68 68 68 68 77 | 58 58 58 58 58 65 | 41 41 41 41 41 45 | M10 M10 M12 M12 M12 M12 | 10 12 10 10 10 12 | 220 260 320 320 320 380 | 12.1 15.7 17.5 20.7 22.5 28.5 | 175 192 189 188 175 196 | 107 120 120 120 114 130 | 83 83 145 145 145 145 | 4.0 4.3 4.8 5.9 6.3 6.7 |




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