The diaphragm coupling can compensate the axial, radial, and angular offsets between the master and the slave due to manufacturing errors, installation errors, load deformation, and the effects of temperature rise changes. Diaphragm coupling is a metal elastic element flexible coupling. It relies on the metal coupling diaphragm to connect the master and slave motors to transmit torque. Ideal for universal couplings and general couplings.
 Selection example Example: HY-34-1012 HY: Double diaphragm type 34: outer diameter size 10:d1 shaft diameter 12:d2 shaft diameter Note: The keyway needs to be additionally marked |
 High torque rigidity and high sensitivity * Zero turn gap *Stainless steel diaphragm compensates for radial, angular and axial deviations *The clockwise and counterclockwise rotation characteristics are identical *Clamping screw or keyway fixing *aluminum alloy *Applicable to stepper motors, servo motors, lathes, screw rods, guide rails |
| 型号 Type | ∅d1 ∅d2 孔径 Aperture | D | L | W | L1 | M | 钢片内孔 Inner hole of steel sheet（mm） | 拧紧力矩Tightening torque（N.m） | 额定扭矩Rated torque（N.m） | 最大扭矩Torque（N.m） |
| HY-D25L26 | 5 6 8 9.525 10 | 26 | 26 | 2.5 | 11.5 | M3 | 11 | 1.5 | 1.4 | 2.8 |
| HY-D34L32 | 8 9.525 10 11 12 14 | 34 | 32 | 3.1 | 14.11 | M4 | 17 | 1.5 | 2.8 | 5.6 |
| HY-D39L34 | 10 11 12 14 15 16 | 39 | 34 | 4.1 | 15 | M4 | 19 | 2.5 | 5.8 | 11.6 |
| HY-D44L35 | 11 12 14 15 16 19 | 44 | 35 | 4.5 | 15 | M4 | 21 | 2.5 | 8.7 | 17.4 |
| HY-D56L45 | 14 15 16 19 20 22 24 | 56 | 45 | 5 | 20 | M5 | 29 | 7 | 25 | 50 |
| HY-D68L54 | 19 20 22 24 30 35 | 68 | 54 | 6 | 24 | M6 | 39 | 12 | 55 | 110 |
| HY-D82L68 | 24 28 30 35 38 40 | 82 | 68 | 8 | 30 | M8 | 43 | 16 | 80 | 160 |
| 最高转速Speed（rpm） | 惯性力矩Moment of inertia（Kg*m²） | 静态扭矩刚性Static Torque Rigidity（N*m/rad） | 径向偏差Radial deviation（mm） | 角向偏差Angular deviation（°） | 轴向偏差Axial deviation（mm） | 重量weight（g） |
| 10000 | 1.8x10-6 | 690 | 0.02 | 1 | ±0.2 | 24 |
| 10000 | 7.2x10-6 | 1650 | 0.02 | 1 | ±0.2 | 46 |
| 10000 | 1.8x10-5 | 2500 | 0.02 | 1 | ±0.2 | 78 |
| 10000 | 2.5x10-5 | 2900 | 0.02 | 1 | ±0.2 | 96 |
| 10000 | 1.0x10-4 | 8400 | 0.02 | 1 | ±0.2 | 206 |
| 9000 | 1.9x10-4 | 11500 | 0.02 | 1 | ±0.2 | 366 |
| 10000 | 7.0x10-3 | 14500 | 0.02 | 1 | ±0.2 | 710 |
