The Pros and Cons of Ball Screws
Ball screws are mechanical devices that convert rotational motion into linear motion. Because of their long threaded shaft, ball screws can handle a great amount of stress, while also helping to minimize friction. With this guide, readers will learn about the pros and cons of ball screws, so they will know what to expect from these mechanical devices.
How Do Ball Screws Compare to Lead Screws?
When looking at the two types of screws, they appear very similar. Ball screws are the only screws that have ball bearings inside. Ball screws are also more difficult to handle by a repair service. These screws both offer their benefits, but for many, ball screws are stronger and more durable in manufacturing applications.
How Do Ball Screws Operate?
Ball screws were once known as antifriction nuts because they help prevent friction during the process of converting rotational motion to linear motion. These screws have helical indentations that allow the ball bearings to rotate freely, helping to prevent friction and heat damage that cause screws to break down faster than normal.
What Are the Pros and Cons of Ball Screws?
Ball screws offer a range of benefits that help manufacturers keep their machines operating normally. Being aware of these benefits will help manufacturers determine if they should use ball screw machinery in their day-to-day operations. Consider the following pros of ball screws.
· These screws are highly efficient. Studies have shown ball screws convert up to 90% of an application’s rotational motion into linear motion. Unfortunately, lead screws only convert 20 to 25% of the rotational motion, making them much less efficient in operation.
· Ball screws also produce very little friction during operation. The nut is designed with rotating ball bearings that help to reduce the amount of friction experienced during operation. Lead screws do not have ball bearings, so they end up producing greater friction and increased heat.
· A ball screw is going to remain much more durable and last longer than a lead screw. The lessened friction and heat help to prevent breakdowns in the components, making these screws last much longer in the manufacturing process.
A person also needs to realize there are some cons regarding ball screws assemblies. The following are some of the cons manufacturers experience with these mechanical devices.
· One of the biggest and main cons of ball screws is their tendency to be back-driven. The reason for this issue is due to the lessened friction. Because ball screws do not produce as much friction, they can be back-driven, especially at specific angles.
· Ball screws also cost slightly more than lead screws. Those who are on a budget may find the extra cost limiting. Many manufacturers have found ball screws pay for themselves in a short amount of time because they last much longer and are less likely to break down.
Discover Further Information
Ball screws offer more benefits than cons. These screws are made to withstand immense pressure during the manufacturing process, making them suitable for many industries.
These screws are highly efficient, working to convert up to 90% of the rotational motion of applications. Manufacturers that are choosing between ball screws and lead screws need to learn as much as possible about both so they can make an informed decision. Ball screws may cost more upfront, but they make up for this increased cost with greater longevity.