Topic: Design of Machine Elements
It is required to connect two parallel shafts, the distance between whose axes is small and variable. They can be coupled by
- A. Universal joint
- B. Knuckle joint
- C. Sleeve coupling
- D. Oldham coupling
Answer: D. Oldham coupling
Explanation: Oldham Coupling is used to connect two parallel shafts where the distance between their axes is small and can be slightly variable. Universal joint connects inclined shafts. Knuckle joint connects shafts subject to axial loading. Sleeve coupling connects perfectly aligned parallel shafts.