Tag: rigid coupling

Rigid couplings are torsionally rigid couplings that do not have any rotary clearance even when subjected to loads, and even when there is a deviation that generates a load, the rigid coupling still transmits the torque rigidly.

Any deviation in the system can lead to premature damage to the shaft, bearings or coupling, which means that it cannot be used at high speeds because it cannot compensate for the relative displacement between the shafts due to the high temperatures generated by the high speed operation. Of course, if the relative displacement can be successfully controlled, rigid couplings can also perform very well in servo applications.

Rigid couplings are an essential component in mechanical engineering, connecting two shafts to transmit power and torque while maintaining precise alignment. These couplings are designed to eliminate relative motion between shafts, ensuring efficient power transmission and reducing wear and tear on machinery. They have many advantages, including simple structure, easy assembly, convenient maintenance, low cost, high torque capacity, torsional stiffness, and zero backlashes. These couplings do not have the ability to cushion and compensate for the relative displacement of the two axes, requiring the two axes to be installed in strict alignment. But the structure is simple, low manufacturing cost, easy to install, dismantle, maintenance, can ensure that the two axes have a high degree of centering, transfer torque is larger, so widely used.

There are several types of rigid couplings available, each with its own unique design and applications. In this article, we will explore some of the most common types of rigid couplings used in various industrial settings.

Rigid couplings are divided into flange couplings, radial key flange couplings, sleeve couplings, jacket couplings and parallel shaft couplings Flange couplings: use bolts to connect the two halves The flange of the shaft coupling realizes the coupling of the two shafts. Radial key flange coupling: the coupling of the two halves of the coupling is connected by radial keys and ordinary bolts. Sleeve Coupling: using a common sleeve Couplings that connect two shafts in a certain way Couplings: Couplings that are clamped in some way to achieve two-shaft coupling using two axially split collets. Parallel shaft couplings: use Coupling in which the intermediate disc passes through the pin to realize the connection of two parallel shafts.