What is a clutch (shaft coupling)?
A clutch is a mechanical element part that connects two shafts together to accurately transmit power from the drive side to the driven side while absorbing installation errors (misalignment), etc. of the two shafts. Couplings in the machinery industry are defined as “the part that connects two shafts into one”, and is generally referred to as “coupling”, “shaft coupling” or “joint”. Power can be transmitted using coupling, even between axes of different diameters.
Clutch role (shaft fitting)
The role of the coupling is mainly as follows.
- Power is transmitted from the driving side (turning side) to the driven side (turning side).
- Absorbs mounting errors between the axes of the driving side (turning side) and driven side (turning side).
- Absorbs vibration from the driving side (turning side) and protects the surrounding product.
- Does not transfer heat from the motor on the drive side (turning side), etc. to the driven side (rotated side).
Performance required for coupling
- Flexibility
- High stiffness
- High precision
- Vibration absorption
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