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Quick Details

  • Structure: Disc
  • Flexible or Rigid: Flexible
  • Standard or Nonstandard: Nonstandard
  • Material: Stainless Steel
  • Brand Name: KAIYUAN
  • Place of Origin: Shandong, China (Mainland)
  • Model Number: Customized
  • Product name: Coupling
  • Application: crane spare part
  • Color: Custom Requirement
  • Body Material: Stainless Steel Aluminum Steel

Packaging & Delivery

Packaging Details In plastic bag , woonden box or as required.
Delivery Time 20 working days after full paid

                           Offering New and Multiple Categories Coupling


Let's know more about couplings

Couplings are mechanical parts that are used to couple two shafts (drive shafts and driven shafts) in different mechanisms to rotate together to transmit torque. When the machine is running, the two axes can not be separated. Only when the machine is parked and the connection is disassembled, the two axes can be separated. In the high-speed heavy-duty power transmission, some couplings also have the role of cushioning, damping and improving the dynamic performance of the shaft. The coupling consists of two halves, which are connected to the drive shaft and the slave shaft, respectively. General power machine mostly by means of coupling and working machine connected.



Commonly used precision coupling are: flexible coupling, diaphragm coupling, bellows coupling, slider coupling, plum coupling, rigid coupling.



1. Elastic Coupling

(1) integrally molded metal elastomer

(2) zero rotation gap, can be synchronized operation

(3) Elasticity compensates for radial, angular and axial deviations

(4) high torque rigidity and excellent sensitivity

(5) clockwise and counterclockwise rotation characteristics are identical

(6) maintenance-free, oil and corrosion resistance

(7) Available in aluminum and stainless steel

(8) fixed way mainly the top wire and clamping two.

2. Diaphragm Coupling

(1) high rigidity, high torque, low inertia

(2) the use of ring or square elastic stainless steel deformation

(3) high torque bearing, high torque rigidity and excellent sensitivity

(4) zero rotation gap, clockwise and counterclockwise rotation characteristics of the same

(5) maintenance-free, super oil and corrosion resistance

(6) double stainless steel diaphragm can compensate for radial, angular, axial deviation, single diaphragm can not compensate for radial deviation.

3. Bellows Coupling

(1) no backlash, twisted rigid, reliable connection, corrosion resistance, high temperature

(2) maintenance-free, super anti-oil, corrugated tubular structure compensation radial, angular and axial deviation, the existence of bias can also maintain the same speed action

(3) clockwise and reverse needle rotation characteristics are identical

(4) corrugated pipe material with phosphor bronze and stainless steel for selection

(5) can be used for systems with high accuracy and stability requirements.

4. Slider Coupling

(1) no backlash connection, for small torque measurement drive structure is simple

(2) easy to use, easy to install, save time, size range, small inertia, easy to visual inspection

(3) anti-oil corrosion, electrical insulation, for different materials, slider elastic body selection

(4) the sliding between the sleeve and the middle piece can allow large radial and angular deviation, the special bump design of the middleware to produce the role of support, to allow a larger angle deviation, no bending moment, Kan axis load To a minimum.

5. Plum Blender Coupling

(1) compact, no backlash, providing three different hardness elastomers

(2) absorbs vibration, compensates for radial and angular misalignment

(3) simple structure, easy maintenance, easy to check

(4) maintenance-free, oil and electrical insulation, operating temperature 20 ℃ -60 ℃

(5) plum elastomer has four, six, eight and ten petals

(6) fixed way to have a top wire, clamping, keyway fixed.

6. Rigid Coupling

(1) light weight, ultra-low inertia and high sensitivity

(2) maintenance-free, strong anti-oil and corrosion resistance

(3) can not tolerate eccentricity, the use of the shaft should be exposed as much as possible

(4) the main material optional aluminum / stainless steel

(5) fixed way to clamp, the top wire is fixed.


Company Information


  Shandong Kaiyuan Heavy Machinery Co., Ltd., a company specialized in hoisting machinery manufacturing, was established in 2006. It is a member unit of China Heavy Machinery Association. The company has passed ISO9001 International quality system certification and has independent intellectual property rights and industrial property rights, Class A manufacture license of special equipment and Class A special equipment installation and maintenance license.

    The company covers an area of 70,000m2, including 30,000m2of plant construction area and 20,000m2 of outdoor area. It has various kinds of hoisting and handling equipment, with steel handling capacity of 10000t. The products are sold to 20 provinces throughout the country and exported to India, Ethiopia, Indonesia, Vietnam and Iran.

    In the new period of development, the company will continue adhering to the quality policy of advanced technology, product quality, courteous serviced, customer satisfaction to achieve development innovation, keeping pace with the times and joint development.



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