Disc Coupling Flexible Diaphragm Coupling

Several sets of diaphragms (stainless steel sheets) are alternately bolted to the two coupling halves, and each set of diaphragms is formed by stacking several pieces, and the diaphragm is divided into a link type and a whole shape of different shapes. The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate the relative displacement of the two shafts. It is a high-performance flexible coupling for metal strong components. It does not need oil, has a compact structure, high strength and long service life. It has no rotating gap, is not affected by temperature and oil pollution, and has the characteristics of acid resistance, alkali resistance and corrosion resistance. It is suitable for shafting transmission in high temperature, high speed and corrosive medium working conditions.
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Product Details

The diaphragm coupling compensates for axial, radial and angular offsets between the active machine and the driven machine due to manufacturing tolerances, mounting errors, load bearing deformations, and changes in temperature rise. The diaphragm coupling is a flexible coupling of metal elastic element, which relies on the metal coupling diaphragm to connect the main and the slave to transmit torque. It has the advantages of elastic vibration reduction, no noise and no lubrication, and is a substitute tooth today. Ideal for couplings and general couplings

Surface treatment

Silk-screen printing, anodizing, electroplating, powder coating, etc. 


CNC turning, CNC milling, CNC grinding, CNC lathe machining, CNC boring, CNC drilling, and ect.




ISO9001:2008, BV


Carton, Box, wooden or as required

Lead time

Making arrangement upon customers' request          

Available format

Auto CAD, .IGS/.STP/.X_T/.PRT/.STEP/.STL/.Sldprt , .PDF/ .dwg and etc.


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


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

Dimensions                                                                                                                                 Unit: mm


Technical Parameters



The company covers an area of about 10000 square meters, mainly engaged in machinery parts, auto parts, ceramics machinery, gear, precision castings, etc., the company has a large gantry machining center, five axes linkage machining center, CNC gear hobbing, CNC gear grinding, CNC gear shaper and other precision machining equipment, detection, strong technical force, complete production and supporting equipment have various types of professional and technical personnel more than 50 people, all company employees 130 people, the company internal implement standardized production management. The company has always been quality, customer first as the service aim, the pursuit of excellent quality.

Our company was founded in 2008, is a collection of production research and development, design, processing and manufacturing services in the integration of large precision parts and components manufacturing enterprises. Over the past decade, we have been committed to the development and innovation of machinery and equipment. We have a group of experienced senior R&D personnel and technical production personnel, who keep pushing forward the old and bringing forth new products to meet the needs of our customers.


Foshan Nanhai Haiyu Electromechanical Industry Co., Ltd.

Address: No. 11, Zhongbian Avenue, Dali Town, Nanhai District, Foshan City, Guangdong Province, China 528231

Mobile+86 17368205890