Rigid Coupling And It’s DesignSUFIYAN DERAIYA

DME 5th SEM (First Shift)106060319015

Butler Polytechnic VadodaraSub: DME

A rigid coupling is a unit of hardware used to join two shafts within a motor or mechanical system.

A device that is used to connect two shafts together for the purpose of power transmission.

Rigid Coupling:

• Used to connect shafts that are precisely aligned

Simple, economical

Low moment of inertia

Driving and driven shafts maintain relative angular position

Advantages:

Metallic versions can accommodate virtually o shaft misalignment, and non-metallic versions only trivial amounts of misalignment - and some suasion during operation will lead to some radial misalignment if both shafts are fully radials constrained.

Disadvantages:

Devices with enough internal clearances or flexible members (flexible shafts, spring washers, and so on) to accommodate any incidental shaft misalignment without a flexible coupling; consumer products, material handling equipment

Typical Applications:

All rigid couplings are precision-machined from bar, offering better strength, fit, and overall quality than cast or powdered metal couplings.

Machined to tighter tolerances than those of other manufacturers, improving fit between shaft and bore, dynamic balance, and so on.

Full range of sizes, materials, and shaft attachment options available

Advantages of OEP's Rigid Couplings over those of other manufacturers:

Rigid couplings

)(ND

T8d

dbc

NO relative motion between the shafts.

Precise alignment of the shafts

Bolts in carry torque in shear. N = # of bolts.

Poor coupling selection Operation beyond design capabilities. The only way to improve coupling life is to

understand what caused the failure and to correct it prior to installing a new coupling. Some external signs that indicate potential coupling failure include:

Abnormal noise, such as screeching, squealing or chattering

Failed seals indicated by lubricant leakage or contamination

Coupling maintenance and failure:

Rigid Couplings In Carbon Steel

Rigid Coupling photos:

Rigid Coupling & It’s Design:

Thank you