Hiwin HG Series Linear Rails

The difference is that the two have different support methods:

The support body of the ball type linear guide is the ball, and the contact with the slide is point contact (divided into two-point and four point contact types, of course, the more contact points, the better the rigidity, the higher the manufacturing accuracy, and the higher the cost);

Roller type linear guide (cross roller guide) is supported by rollers, which make linear contact with the slide. Compared with ball type, it has higher rigidity and greater bearing capacity. However, there is a problem that its stroke is limited, unlike most ball type, which can be spliced for a long time (length is not limited).

Relatively speaking, the cost of the ball bearing type will be lower, the speed can be faster, and the splicing can be longer, which is its advantage; Roller type has greater load-bearing capacity and better rigidity under the same volume.

Roller linear guide: The difference between roller linear guide and ball linear guide, I think they are both the same. Do you have any pictures

The previous one should be a ball roller linear guide. The rolling elements in the two types of guides are different. The roller linear guide uses small cylinders as rolling elements, while the ball roller linear guide uses round balls as rolling elements. Roller linear guides have better load-bearing capacity, but the quality in this area is not very good in China.

Roller linear guide: the difference between ball and roller linear guides in CNC machining centers

Different bearing sliders:

Roller linear guides use cylindrical rollers in the slider, while ball linear guides use spherical rollers in the slider,

Different contact areas:

Roller linear guide has a large contact area,.

The contact area of the ball linear guide is small.

Different loads:

Roller linear guide has high load and low resistance.

Ball linear guides have low load and resistance.

Attention to the use of linear guides:

1. Preventing rusting:

When directly taking the linear guide rail by hand, it is necessary to thoroughly wash off the sweat on the hands and apply high-quality mineral oil before operation. Especially during the rainy season and summer, attention should be paid to rust prevention.

2. Keep the environment clean:

Keep the linear guide and its surrounding environment clean. Even tiny dust that cannot be seen by the naked eye entering the guide will increase its wear, vibration, and noise.

3. Installation should be done carefully:

Linear guides should be carefully installed and used, and wall force stamping is not allowed. It is not allowed to directly strike the guide rail with a hammer, and pressure transmission through rolling elements is not allowed.

4. The installation tool should be suitable:

Use appropriate and accurate installation tools for linear guides, and try to use specialized tools as much as possible, avoiding the use of fabrics and short fibers.

HG Series,Linear Rails