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Coupling Types and Use

Gul Bahar Shah
  🔧 What is a Coupling? A coupling connects two rotating shafts (driving and driven) to transmit torque. Functions include: Power transmission between shafts. Absorbing shock and vibration to protect components. Accommodating misalignment (angular, parallel, axial). Overload protection in some designs. 🛠️ Major Types of Couplings and Their Uses 1. Rigid Couplings Examples: Sleeve (muff), Split-muff, Flange. Use: When shafts are perfectly aligned. Applications: Pumps, compressors, and machinery requiring precise alignment. Risk if misused: High stress on bearings due to no flexibility. 2. Flexible Couplings Examples: Bushed pin, Oldham, Gear, Jaw, Diaphragm, Bellows. Use: Allow for misalignment and absorb vibration. Applications: Motors, generators, conveyors, HVAC fans. Benefit: Protects shafts and bearings from misalignment damage. 3. Universal Coupling Use: Transmits power between shafts at varying angles. Applications: Automotive drive shafts, industrial machine...
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What is a PAHU?

Gul Bahar Shah

  What is a PAHU?

A Primary Air Handling Unit (PAHU) is a system that takes fresh outside air, filters it, cools or heats it, and supplies it into a building. It mainly focuses on ventilation and air quality. ⚙️ Main Functions of PAHU :- Fresh Air Intake: Draws outside air into the system Filtration: Removes dust, pollutants, and contaminants Cooling/Heating: Adjusts temperature using chilled water or heating coils Air Distribution: Supplies conditioned fresh air to indoor spaces

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