探花精选

探花精选., Ltd

EN

探花精选., Ltd
EN
Home> Company News> How to select the preload force of the ball screw?

How to select the preload force of the ball screw?

2025,04,23
In the era when the improvement of industrial automation, the high-performance ball screw, as a core precision transmission component of machine tools, plays a key role in various transmission devices.
?
In the application of ball screw pairs, applying a preload force to the nut is a key means to enhance its performance. This operation can significantly increase the axial stiffness of the ball screw assembly and greatly improve the positioning accuracy. Theoretically speaking, if we only focus on the stiffness and positioning accuracy of the ball screw kit, it seems that the greater the preload force, the more ideal the effect will be, because a larger preload force can more effectively eliminate the axial clearance caused by elastic deformation. However, the actual situation is not so simple. Even if a small preload force can temporarily eliminate the axial clearance, it is difficult to truly improve the overall stiffness of the ball screw pair.
?
This is because the preload force must reach a specific threshold to effectively eliminate the "low stiffness area" of the preloaded nut. In the double-nut preloading structure, parameters such as lead errors inevitably exist in the ball screw and nut components. This deviation will cause that when the screw shaft and nut come into contact, some areas will fit more closely after being deformed by force, resulting in a higher contact stiffness; while other areas will become relatively loose after deformation, forming a "low stiffness area" with a lower contact stiffness. Only when a sufficiently large preload force is applied to eliminate these "low stiffness areas" can the axial contact stiffness be effectively enhanced, achieving the goal of optimizing performance.
?
However, the preload force is not the larger, the better. An excessively large preload force will bring a series of negative impacts:?
1. Significantly increase the torque required for driving, resulting in a decrease in transmission efficiency;?
?
2. Intensify the contact fatigue and wear between the balls and the raceways, directly shortening the working life of the ball screw and ball nuts.?
Previous
Next
Contact Us

Author:

Mr. Augus

E-mail:

augus@hojama-tech.com

Phone/WhatsApp:

Popular 探花精选
Company News
What need to do when using the linear motion guideways?
What need to do when using the linear motion guideways?

June 25, 2025

How to Select an Idea Micro Linear Guideway?
How to Select an Idea Micro Linear Guideway?

June 24, 2025

You may also like
Related Information
Why Are Ball Screws the Backbone of Medical Robots?

How does Tesla achieve innovative breakthroughs in the application technology of linear screw products?

一、Tesla has achieved multiple innovative breakthroughs in the application technology of lead screws in the fields of automobiles and humanoid robots. In the automotive field, the application of ball...

What are the differences in the application of screw products between domestic new energy vehicles and Tesla vehicles?

The differences in the application of screw products between domestic new energy vehicles and Tesla vehicles: 一、Application 1. Domestic new energy vehicles: 1) Battery production and assembly: The...

How do you know if a ball screw is bad?

Fault Diagnosis Methods and Technologies 1. Vibration Analysis Method 1) Vibration signal acquisition Collect the vibration signals of the linear motion ball screw pair through acceleration sensors...

Related Categories

Email to this supplier

Subject:
Email:
Message:

Your message must be betwwen 20-8000 characters

Contact Us

Author:

Mr. Augus

E-mail:

augus@hojama-tech.com

Phone/WhatsApp:

Popular 探花精选
Company News
What need to do when using the linear motion guideways?
What need to do when using the linear motion guideways?

June 25, 2025

How to Select an Idea Micro Linear Guideway?
How to Select an Idea Micro Linear Guideway?

June 24, 2025

Please Leave Us A Message

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Upload Attachment
Send