This is a miniature ball screw with a diameter of 10mm and a lead of 10mm. It is equipped with an end cap reverser
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Ball Screws VS Zero-Backlash Lead Screws? Which one to choose
Hello, this is Boom at SCREWTECH. Today, I would like to ask you how to choose the ball screw and the trapezoid（lead）screw with zero gap？
1.The first thing you need to know is the difference as below:
| Feature | Ball Screw | Lead Screw |
| Working Principle | Power is transmitted by rolling balls between the nut and the shaft | Power is transmitted by sliding friction between the nut and shaft |
| Efficiency | High(around 90% or more) | Low(around 30%-50%) |
| Friction Type | Rolling friction,low friction coefficient | Sliding friction,higher friction coefficient |
| Accuracy | High,suitable for precision applications | Lower,suitable for applications with less precision |
| Self-Locking | No self-locking ability | Higher wear,shorter lifespan |
| Wear and Lifespan | Low wear,longer lifespan | Higher wear,shorter lifespan |
| Application | CNC machines,robotics,automation equipment,and other high precision devices | Lifts,conveyor systems,low-load applications |
2.What are their load conditions?
If the load is heavy or requires a longer period of high load operation, it is more practical to choose ball screws, because ball screws can provide better load capacity. On the contrary, if the load requirements are not high, zero clearance trapezoid screw can also meet the needs.
This is a non-clearance trapezoidal lead screw with a diameter of 10mm and a lead of 10mm
3.Is precision the most important thing in transmission motion?
Advantages of high precision: accurate positioning, high precision for applications requiring precise control, such as CNC machine tools and automation equipment; In addition, it can also improve performance, and high precision can reduce errors and improve system stability and efficiency.
Disadvantages of high precision:First of all, the cost increases, secondly, the load adaptation is also poor, high-precision system is easy to wear under large loads, short service life; Over-design, in the application of low precision requirements, too high accuracy has no practical value and increases unnecessary costs.
For the choice of ball screw or zero clearance trapezoid screw, it is also necessary to choose according to the actual situation. Do you have any other views on this? We can discuss them together.
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