Flexible-Shaft Couplings

HZPT GROUP CO., LTD.

We are a professional  manufacturer

WE ARE SPECIALIST IN MAKING ALL KINDS OF MECHANICAL TRANSMISSION AND HYDRAULIC TRANSMISSION LIKE: PLANETARY GEARBOXES, WORM REDUCERS, IN-LINE HELICAL GEAR SPEED REDUCERS, PARALLEL SHAFT HELICAL GEAR REDUCERS,FLEXIBLE SHAFT COUPLINGS, HELICAL BEVEL REDUCERS, HELICAL WORM GEAR REDUCERS, FLEXIBLE SHAFT COUPLINGS, AGRICULTURAL GEARBOXES, TRACTOR GEARBOXES, AUTO GEARBOXES, PTO DRIVE SHAFTS, SPECIAL REDUCER & RELATED GEAR COMPONENTS AND OTHER RELATED PRODUCTS, SPROCKETS, HYDRAULIC SYSTEM, VACCUM PUMPS, FLUID COUPLING, GEAR RACKS, CHAINS, TIMING PULLEYS, UDL SPEED VARIATORS, V PULLEYS, HYDRAULIC CYLINDER, GEAR PUMPS, SCREW AIR COMPRESSORS, SHAFT COLLARS LOW BACKLASH WORM REDUCERS AND SO ON. FURTHERMORE, WE CAN PRODUCE CUSTOMIZED VARIATORS, GEARED MOTORS, ELECTRIC MOTORS AND OTHER HYDRAULIC PRODUCTS ACCORDING TO CUSTOMERS’ DRAWINGS.

What is Flexible Shaft Couplings

Flexible shaft couplings connect two shafts, end-to-end and in the same line, causing both to rotate at the same speed. They also flex to compensate for misalignment and movement between shafts. This compensation is crucial because perfect alignment of two shafts is extremely difficult and rarely achieved. There are two types of misalignment: angular and parallel. Most flexible shaft couplings also accommodate axial movement, or end float, of the shafts.

Depending on the type, most flexible shaft couplings can accommodate from 1/4 of a degree to 4 degrees of misalignment. Low speed couplings are aligned to 0.001 in/in (3.5 seconds) and for high speed, they are aligned even tighter at 0.0005 in/in (1.75 minutes). Maximum parallel misalignment can range from a few hundredths of an inch to over an inch.

Other Functions of Flexible Shaft Couplings:
  • Dampen vibration and reduce shock loads
  • Protect against overload
  • Measure output torque of driven equipment
  • Insulate the driver from the driven
  • Position a rotor of a motor or generator
  • Tune a system out of a torsional critical condition

Every Type of  flexible shaft couplings

  • Mechanically Flexible: obtain flexibility from a clearance between components that allows rolling or sliding. They require lubrication unless a moving part is made from a self-lubricating material.
  • Elastomeric Element: obtain flexibility from shear or compression of a resilient polymer material, like rubber or plastic. The material may be mechanically interlocked, bolted, clamped, or molded to the hubs. They offer better shock and vibration damping than other types but are subject to operating temperature limitations.
  • Metallic Element: obtain flexibility from the flexing of thin metallic discs or diaphragms.
  • Miscellaneous: obtain flexibility from a combination of mechanisms mentioned above.

Mechanically

Elastomeric

Miscellaneous

Flexible Shaft Couplings

Shaft misalignment can limit a machine’s performance, cause excessive vibration, high reaction loads, and accelerated wear, and often leads to premature equipment failure. Flexible Shaft Couplings can help prevent these issues by transmitting torque while compensating for parallel, angular, and axial misalignment between drive components. When installed correctly, flexible shaft couplings can also reduce vibration, minimize noise, and protect driveshaft components.

High-Performance Flexible Shaft Couplings from the Industry Leader

EP is an industry-leading Flexible Shaft Couplings manufacturer.  Our zero-backlash Flexible Shaft Couplings handle large shaft misalignments without causing high radial stress and perform better than other rigid or flexible shaft couplings alternatives in high-performance applications.

Advantages

Misalignment Management

One of the biggest advantages of flexible shaft couplings are their ability to function in the face of different types of misalignment.

Misalignment occurs during operation when the shaft’s axis of rotation becomes skewed. This can happen because of movement, vibrations or bumps during motion. Parallel misalignment occurs when the shafts’ rotational axes become parallel to each other. Angular misalignment is when the shafts intersect at an angle, and skewed misalignment occurs when both axial and angular misalignment take place at once.

Axial Displacement Accommodation

Besides accommodating misalignment, flexible shaft couplings have other important functions in mechanical equipment. End float, another term for axial displacement, is the result of the shafts moving away from or towards each other on their axes. Flexible shaft couples can help to accommodate this by absorbing shocks and dampening vibrations.

Accessories

Examples of flexible shaft couplings accessories that you may require include flexible shaft couplings grease/lubricant, fitting kits, flexible shaft couplings encoder attachments, keyway connections, nuts and bolts, repair kits, and more.

Choosing the Right Flexible Shaft Couplings for Your Application

Flexible Shaft Couplings provide torque transmission while helping to improve machine performance and life, but using the wrong type of coupling can impede mechanical performance. Flexible shaft Couplings that are too rigid can create excessive bearing loads that can impact performance and life.  Flexible shaft Couplings with backlash or that “wind-up” in applications with changing speeds can limit a machine’s operating speed and performance. Incorrect installation or using shaft couplings outside their recommended ratings can also cause issues. 
 Primary considerations for properly selecting a flexible shaft couplings include torque capacity, motion profile, maximum RPM, flexible shaft couplings, shaft sizes, and the type and amount of misalignment. Once installed, a flexible shaft couplings should be relatively easy to connect and disconnect for inspection, as needed.

How It Works

20

More than 20 years experience in research and development.

50

Planning 

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5W

Execution

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