3 June 2016

Advantages and disadvantages of power screw

A power screw is a drive for converting rotary motion into a linear motion for power transmission in a machine. A power screw is also sometimes referred to as a translation screw. Instead of holding the parts together, it uses helical screw motion to transmit the power. Now in this article, you can check out the pros and cons of the power screw to understand more about it. 

Advantages of power screw:

  • Large load-carrying capacity.
  • Simple to design.
  • Compact construction.
  • Easy to manufacture.
  • By applying small effort as 400 N, a load of 15 KN can be raised.
  • Gives smooth and noiseless service without any maintenance.
  • Self-locking property.
  • Precise and accurate linear motion.

Disadvantages of power screw:

  • Very poor efficiency is as low as 40%.
  • It can be used for intermittent motion.
  • High friction in threads causes rapid wear.