Coupling

Coupling is a mechanical device which unites two shafts and transmits power. During the mechanism of operation coupling will not allow dismantling of process. It ultimately helps in uniting two single pieces together with some degree of end movement or degree of misalignment and or both. When proper coupling is selected it helps in cutting maintenance, operation and downtime cost.

Benefits of coupling

Use of coupling in industries helps in several ways as follows.

• It reduces shock load transmission
• It protects overload
• It alters the rotating characteristics of vibration
• It helps in maximum power transmission
• It allows misalignment of shaft
• It also provides mechanical flexibility

Types of coupling

• Rigid coupling
  • Sleeve coupling
  • Muff coupling
  • Flange coupling
  • Compression coupling
  • Clamp coupling
  • Split muff coupling
• Flexible coupling
  • Oldham coupling
  • Thompson coupling
  • Disc coupling
  • Universal coupling
  • Bellows coupling
• Torque limiting coupling

Questions:

• What are coupling failure?
• What are coupling maintenance?
• How do you check coupling balance?
• How to measure shaft axis alignment?
• What are the shaft coupling requirements?