cnc parts

Difference linear guide and a linear slide

What is the difference between a linear guide and a linear slide?

What is the difference between a linear guide and a linear slide? Many people think that linear guides are the same as straight slides. If you think so, it is not correct. Let’s tell you about the difference between them!

Linear Guides

Both linear guides and linear slides are a component inside the machine that withstands a certain load and achieves high-precision motion under high load conditions. However, linear guides and linear slides are not the same before, and there are still different places.

Linear guides can also be called line rails and linear slides. Linear slides are a type of linear guide. Linear guides can be divided into sliding guides and rolling guides. The sliding guide rail is a direct contact between the guide rail and the slider, and the price is low, the precision is low, and the friction coefficient is large. The rolling guide is equipped with rolling elements (rollers or balls) between the guide rail and the sliding block. The rolling guide has a complicated structure, a relatively high price, a small friction coefficient and high precision.

Applied to various industries, the most important is the machinery and automation industry. The main function is to make repeated linear motions in a given direction, which can be divided into several according to the nature of friction.

Profile Width(mm)80
Drive TypeBallscrew
Screw Lead10mm
Bearing TypeSingle Square Rail
Motor Type2-Phase Nema24 Stepper Motor
Effective Travel Length L(mm)500
Effective Travel Length(inch)20
Max. Speed(mm/s)200
Max. Speed(inch/s)7.87
Normal Load Capacity(kgs)60
Normal Load Capacity(lbs)132
Axial Load Capacity(kgs)20
Axial Load Capacity(lbs)44
cnc router

What is the difference between a ball screw and a trapezoidal screw, a linear guide?

Ball screws, trapezoidal screws, and linear guides are generic conventional accessories. The names seem to be similar, but in fact they are completely different between the three, with different working principles, different production requirements, and different occasions of use. Taishang Precision Machinery Xiaobian will introduce the difference between a ball screw and trapezoidal screw and linear guide.

1. The difference between a ball screw and a trapezoidal screw. The difference between a ball screw and a trapezoidal screw is mainly the way the load is carried between the moving surfaces. The ball screw uses recirculating balls to minimize friction and increase efficiency, while the trapezoidal screw utilizes a low coefficient of friction between the sliding surfaces. Therefore, the trapezoidal screw does not reach the efficiency of the ball screw, and the efficiency is equal to about 90% of the ball screw. The fatigue life equation is very reliable within its scope of application. In summary, ball screw and trapezoidal screw have fundamental differences in their application fields because of their differences in their ability to provide for performance and life.

2. The difference between linear guides and ball screws. Ball screw is mainly used for some large-scale machine tools, engraving machines, etc. It is very convenient to convert the rotating motion into linear motion, which is very convenient to use. Thus reducing the wear and tear of the whole equipment in the rotation; the linear guide is very used. Wide range but many types, square four-row high-bead guides are used for some large-scale machine tools, such as surface grinders, slicers, wire cutting, etc.; also because of different working conditions, the linear guides are also different, most suitable for precision measuring instruments Semiconductor manufacturing and inspection equipment, non-standard automated machinery and other precision linear motion applications are important, and it is also important to choose the right guide rail for different equipment.

The “ball screw” that we often hear is actually a ball screw, but the habit is changed, and the name is different. The above is about the difference between the ball screw and the trapezoidal screw, linear guide, in fact, it is not difficult to distinguish the three, look at the introduction of the small series can know how to distinguish, I hope to help everyone.

FLS40 Ball screw linear rail guide slide module table actuator for cnc XY motion robotic arm parts motorized router kits