shaft couplings by sheharyar khan (uet lahore)
TRANSCRIPT
![Page 1: Shaft couplings by Sheharyar khan (Uet Lahore)](https://reader035.vdocuments.us/reader035/viewer/2022062419/55a655cf1a28ab66308b463c/html5/thumbnails/1.jpg)
Shaft Couplings
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Coupling
• A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.
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Types of Couplings
Couplings
Rigid Compliant or Flexible
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Rigid Couplings
• Rigid couplings lock the two shafts together allowing no relative motion between them.
• Rigid coupling is used for aligned shafts, or when accuracy of torque transmission is of prime importance.
• Mostly used for low rotational speed shafts.
• Following are some types of rigid couplings;1. Setscrew Couplings
2. Keyed Couplings
3. Clamp Couplings
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Setscrew Couplings
• Set screw couplings use a hard set screw that digs into the shaft to transmit both torque and axial loads.
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Keyed Couplings
• Can transmit substantial power.
• Along with a key, a set screw may also be used, being located 90⁰ from the key.
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Clamp Couplings
• It uses one or two piece split couplings that clamp around both shafts and transmit power through friction.
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Flexible/Compliant Couplings
• Flexible couplings permit some axial, radial or angular misalignment
• Following are some types of rigid couplings;
1. Jaw Couplings
2. Flexible disk couplings
3. Gear and Splines couplings
4. Helical and bellows couplings
5. Linkage couplings
6. Universal joints
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Jaw Couplings
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Flexible disk Couplings
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Gear and Spline Couplings
• Can absorb small angular and parallel misalignment
• High torque capacity
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Helical and bellows Couplings
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Linkage/Schmidt Couplings
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Universal Joints
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Rzeppas 6-ball CV Joint
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Double Cardan Couplings