The Magic of Ball Screw Bearings: Precision Powerhouses

Ball screw bearings (also called ball screw assemblies,ball screw support bearings) are key parts that turn rotating motion into smooth, accurate straight-line motion — or the other way around. They work much better than older types of screws because of these important features:

High Efficiency:

They use rolling instead of sliding, which creates far less friction. This makes them 90–98% efficient, so they waste less energy and save power.

• 1. Very Precise:

Made with great care in controlled factories, they offer excellent accuracy — as close as ±0.005 mm — and can repeat the same movement within ±0.003 mm. You can choose from different quality levels, including high-precision ground screws.

• 2. Smooth and Sensitive Movement:

The rolling balls prevent jerky motion, allowing for smooth starts and stops, even at very slow speeds.

• 3. Strong and Stiff:

By using special preloading methods, engineers can remove any looseness (backlash), making the system stiff and more accurate, especially under heavy loads.

• 4. Long-Lasting:

Made from hard materials (HRC 58–62), they wear down slowly and can last 5–10 times longer than regular screws with little need for maintenance.

• 5. Can Move in Both Directions:

They work well whether turning into motion or motion into turning. (Note: In vertical setups, extra parts may be needed to prevent unwanted movement.)

• 6. Great for High Speeds:

Because they create little heat and resistance, they can move faster than many other systems.

• 7. Flexible and Standardized:

They come in many sizes, lengths, and precision levels. It’s easy to fit them into machines, and they can be customized for specific needs.

Why Choose Ball Screws?

Ball screw bearings are the top choice when you need exact movement, high efficiency, and long life. They are used in many high-tech areas, such as:

• CNC machine tools (for X/Y/Z movements)
• Industrial robots (like robotic arms)
• Equipment for making computer chips
• Medical imaging and robot-assisted surgery
• Factory automation systems

With their mix of accuracy, strength, and durability, ball screws are essential for modern, high-performance machines.

If you have questions or need more information,please contact Beining Technology.