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Revision Notes
Shaft Couplings — Revision Notes
CBSE · Class 12 · Engineering Graphics
Shaft Couplings revision notes for CBSE Class 12 Engineering Graphics: 4 topics in quick points. Part of the CBSE Class 12 Engineering Graphics syllabus.
5 concepts
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Get startedKey Topics to Revise
1
Introduction to Shaft Couplings
- Shaft couplings join two shafts to transmit rotary motion and power
- Used when shafts are at distance or when connecting different machines
- Shafts have limited lengths for transport ease, requiring connections
2
Types of Flange Couplings
- Two main types: Unprotected and Protected flange couplings
- Both use similar components but differ in flange shape
- Protected type has additional safety features
3
Unprotected Flange Coupling - Design and Features
- Two similar cast iron flanges with keyways in hubs
- Rectangular sunk keys connect shafts to flanges at right angles
- Keys driven from inside faces of flanges for easy fitting
4
Protected Flange Coupling - Design and Features
- Similar components to unprotected type with modified flange shape
- Flared and flattened rim (shroud) covers bolt heads and nuts
- Enhanced safety prevents accidents and clothing entanglement
Get complete notes with diagrams and examples
Full NotesKey Concepts
Mechanical devices used to join twoA standard form of coupling extensivelyType of flange coupling where boltModified flange coupling with a flaredAlignment system where one flange has
Frequently Asked Questions
What are the important topics in Shaft Couplings for CBSE Class 12 Engineering Graphics?
Key topics in Shaft Couplings include Introduction to Shaft Couplings, Types of Flange Couplings, Unprotected Flange Coupling - Design and Features, Protected Flange Coupling - Design and Features. Study these first, then practise questions on each for the CBSE Class 12 board exam.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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