What is rigid coupling?
A rigid coupling is one that does not allow axial or radial motion between the driving and driven shafts. As shown in Fig. 3.130, a rigid coupling consists of two flanges, one mounted on each shaft. Rigid couplings require exact alignment between shafts otherwise considerable wear on the bearings and seals will occur.
What are the types of rigid coupling?
There are three main types of rigid couplings: sleeve, flanged and clamped. For commercial shafting, a rigid coupling may be a sleeve with the shafts pressed into each end or it may be a clamping sleeve. The sleeve on each shaft end may have an external flange with bolt holes.
How many types of coupling are there PDF?
13 Different Types of Coupling with [PDF]
Why are rigid coupling is used?
Rigid coupling is used only whenever the misalignment between equipment shafts is very small or no misalignment is present in the system. Rigid couplings connect two shafts of two rotating machines and allow transmitting power and torque from one machine to another machine.
What is rigid coupling and flexible coupling?
Rigid couplings provide a rigid connection; the two shafts are firmly connected, and the coupling allows for a smooth transmission of torque throughout the system. Flexible couplings create flexible connections, and the components can lose some of the torque power through the interaction.
Why are rigid coupling used?
Rigid couplings are used mainly on low speed or low torque applications where the shafts are an identical size and are not subject to misalignment. Applications which use rigid shaft couplings include: Conveyors. Food processing applications.
What is the difference between rigid and flexible couplings?
What is different types of coupling?
Coupling fall into two main categories: Material Flexing and Mechanical Flexing. The material flexible types obtain their flexibility from stretching or compressing a resilient material, such as rubber, or from the flexing of thin metallic discs or grid. All metal mechanical flexing couplings require lubrication.
Why are rigid couplings used?
What are limitations of rigid coupling?
Disadvantages of rigid flange coupling
- It can not tolerate misalignment between shafts.
- It can not used where shocks and vibrations are present.
- It requires some radial space.