German KCI coupling KCI model KCI price

KCI coupling is a torsionally rigid coupling. It has no backlash even under load, and the rigid coupling transmits torque rigidly even when misalignment generates load. Light weight, ultra-low inertia, and high sensitivity. Maintenance-free, with excellent oil resistance and corrosion resistance. Made of aluminum alloy and stainless steel. Available in set screw type, clamp type, and split type. Models with different bore sizes at both ends are also in stock.

KCI coupling features

Diaphragm couplings can compensate for axial, radial, and angular misalignments between the driving and driven machines caused by manufacturing errors, installation errors, load deformation, and temperature changes. Diaphragm couplings belong to the category of flexible couplings with metallic elastic elements. They rely on metal diaphragms to connect the driving and driven machines and transmit torque. They offer the advantages of elastic vibration damping, noiseless operation, and no need for lubrication, making them an ideal replacement for gear couplings and general couplings today. Main characteristics of diaphragm couplings: 1) Strong ability to compensate for misalignment between two shafts; compared with gear couplings, the allowable angular displacement is twice as large, the reaction force is small during radial displacement, flexibility is high, and certain axial, radial, and angular displacements are permitted. 2) Significant vibration damping effect, noiseless, and wear-free. 3) Suitable for operation in high temperatures (-80+300) and harsh environments, and can operate safely under conditions of impact and vibration. 4) High transmission efficiency, up to 99.86%. Particularly suitable for medium and high-speed high-power transmission. 5) Simple structure, light weight, compact size, and easy assembly and disassembly. Assembly and disassembly can be performed without moving the machine (for types with an intermediate shaft), and no lubrication is required. 6) Can accurately transmit rotational speed without slip, suitable for transmission in precision machinery.

KCI coupling selection

Correct selection of diaphragm couplings: 1) A diaphragm coupling consists of at least one diaphragm and two hubs. The diaphragm is fastened to the hubs with pins, which generally prevents loosening or backlash between the diaphragm and the hubs. Some manufacturers offer models with two diaphragms, while others offer three diaphragms, with one or two rigid elements in the middle connected to the hubs on both sides. 2) This characteristic of diaphragm couplings is somewhat similar to bellows couplings; in fact, the torque transmission method of couplings is largely similar. The diaphragm itself is very thin, so it bends easily when relative displacement loads occur, allowing it to withstand misalignments of up to 1.5 degrees while generating lower bearing loads in servo systems. 3) Diaphragm couplings are commonly used in servo systems. The diaphragm has good torsional rigidity, though slightly inferior to that of bellows couplings. 4) On the other hand, diaphragm couplings are very delicate and can be easily damaged if misused or incorrectly installed. Therefore, it is essential to ensure that misalignment remains within the allowable range for normal operation of the coupling. 5) Adjust the model according to the shaft diameter: The initially selected coupling connection dimensions, namely the shaft hole diameter d and shaft hole length L, must meet the requirements of the driving and driven end shaft diameters; otherwise, the coupling specification must be adjusted according to the shaft diameter d. It is common for the driving and driven end shaft diameters to differ. When torque and speed are the same but the shaft diameters differ, select the coupling model based on the larger shaft diameter. In newly designed transmission systems, select from the seven shaft hole types specified in GBT3852, with the J1 type shaft hole recommended to improve universality and interchangeability. Shaft hole length shall comply with the i bearing coupling product standard.

KCI coupling precautions for use

1) Products with diaphragms have sharp edges that may cause injury; it is recommended to wear thick gloves during installation. 2) Please install protective covers or other devices around the coupling to ensure safety. 3) If the shaft misalignment exceeds the allowable value during installation, the coupling may deform, leading to damage or reduced service life. 4) The allowable shaft misalignment for the coupling includes radial, angular, and axial deviations. During installation, please adjust to ensure that the shaft misalignment is within the allowable values specified in the corresponding product catalog. 5) When multiple types of misalignment occur simultaneously, the corresponding allowable values should be halved. 6) To extend the service life of the coupling, it is recommended to keep the shaft misalignment within 1/3 of the allowable value. 7) Tighten the screws only after inserting the installation shaft; otherwise, the coupling may deform. When tightening screws, please use a torque wrench and do not use screws other than those provided as accessories. 8) If abnormal noises occur during operation, stop immediately and check the installation accuracy, screw looseness, etc. It is recommended to apply adhesive to the outer surface of the screws after installation and debugging to enhance protection.

Weidou Intelligent Technology specializes in selling German KCI rigid couplings, KCI flexible couplings, KCI safety couplings, KCI universal couplings, KCI diaphragm couplings, KCI jaw couplings, KCI flange couplings, KCI cross couplings, KCI slider couplings, KCI gear couplings, KCI tire couplings, KCI elastic couplings, KCI bellows couplings, KCI roller chain couplings, KCI spring couplings, KCI original imports from Germany. Welcome customers to inquire and order.