A ball screw is a mechanical mechanism that converts rotational to linear motion. They have a long threaded shaft with ball bearings that can endure a lot of pressure and weight while reducing friction. A common ball screw has both a screw and a nut, as seen to the left. Both the screw and the nut have axial indentions on the outside that allow ball bearings to roll between them. Before changing direction, the ball bearings travel to the return system as the ball screw turns.

Ball bearings in a ball screw roll along the track in the same way that ball bearings in a typical rotary ball race do, removing the sliding friction that plagues lead screws. The ball bearings are recirculated through the ball nut continuously, spreading the load and collecting up lubricant along the route. Ball screws can give a high level of efficiency and positional precision even at high torque and force loadings primarily to the utilisation of rolling ball bearings within the screw.

Ball screws are complex and high-precision devices, which means they can be slightly more expensive than a standard lead screw. This is because they require intricate machining and assembly procedures to make. If your application necessitates a ball screw, the higher performance usually outweighs the higher cost. 

Ball screws are typically used in applications that need the following:

• Flowing motion
• Efficiency
• Precision
• Accuracy 
• Continuous/high-speed movement for an extended time

Advantages

Ball screws are known for their remarkable mechanical efficiency. According to statistics, ball screws are around 90% efficient, which means they can transfer nine-tenths of the rotational motion of the application into linear motion. Ball screws are between three and four times more efficient at converting mechanical energy than lead screws, based on these figures.

Here are a few of the benefits of using ball screws in your motion application:

• Highly efficient, needing less torque – resulting in a smaller motor
• Highly accurate grades indicate a greater precise position.
• Lesser friction – can operate at lower temperatures
• Usable in rolled and ground forms.
• Adjustable to increase/decrease preload
• Less often replaced
• Screw diameters ranging from 4mm to 80mm are available.

Disadvantages

Ball screws design have only one significant drawback: they are prone to being back-driven. They can be back-driven at specific lead angles since they generate so little friction. It is slightly more expensive than related mechanical devices as the ball screw price are high, such as lead screws, notwithstanding the possibility of being back-driven and this will consider as a ball screw problems. Ball screws are more expensive, which may dissuade manufacturing enterprises on a limited budget from using them. Ball screws will remain a popular choice for producers trying to improve the quality and performance of their goods because of their better mechanical efficiency and minimal internal friction.

EIBC is one of the ball screws manufacturers and ball screws from EIBC can be used in the most extreme and diverse environments. 

Ball screws are available in a wide range of diameters, pitches, and configurations, including various pre-loads if required, and are also supplied with seals to keep the lubricant inside. EIBC's ball screws are manufactured in India using high-quality materials and cutting-edge manufacturing techniques, meeting all of the industry's latest performance, reliability, and value-for-money standards.