The guide rail can bear the fixed device or equipment guiding the movement and reduce its friction. In general, guide rails can be used in straight-line reciprocating motion occasions, such as guiding, fixing mechanical parts, special equipment, instruments and so on. The rolling guide rail has higher rated load than the linear bearing, and can bear a certain torque, which can realize high-precision linear motion under high load. Common guide rails are mainly divided into linear guide rails and roller guide rails. Compared with linear guide rail, roller guide rail is stable and can adapt to harsh environment.

具體區別如下：

The specific differences are as follows:

1、滾輪導軌的磨損較小，可以大大提高導軌和設備的使用壽命由于在相互運動的金屬材料之間如果不及時供給潤滑油脂，就會產生更嚴重的磨耗問題，從而影響使用。所以潤滑效果同樣是考量導軌系統好壞的因素之一。與直線導軌相比，滾輪導軌的接觸部分較小，而且是滾動摩擦。因此只需要少量的潤滑油就可以滿足使用要求。通常情況下滾動導軌的潤滑油補給周期為1個月，運行長度約100km。

1. The wear of the roller guide rail is small, which can greatly improve the service life of the guide rail and equipment. If the lubricating grease is not supplied in time between the moving metal materials, there will be more serious wear problems, which will affect the use. Therefore, the lubrication effect is also one of the factors to consider the quality of the guide rail system. Compared with the linear guide rail, the contact part of the roller guide rail is smaller, and it is rolling friction. Only a small amount of lubricating oil can meet the requirements. Generally, the lubricating oil supply cycle of rolling guide rail is 1 month, and the operation length is about 100km

2、滾輪導軌適用于高速運動，因為滾輪導軌與直線導軌相比不容易產生摩擦熱，所以熱形變量很小，與直線導軌使用速度相差10倍以上。

2. The roller guide rail is suitable for high-speed movement. Because the roller guide rail is not easy to generate friction heat compared with the linear guide rail, the thermal shape variable is very small, which is more than 10 times different from the service speed of the linear guide rail.

3、滾輪導軌相比直線導軌要高。

3. The roller guide rail is higher than the linear guide rail.

4、滾輪導軌比直線導軌運行要平穩。

4. The roller guide rail runs more smoothly than the linear guide rail.

5、滾輪導軌可適應惡劣環境。

5. Roller guide rail can adapt to harsh environment.

導軌的發展也就是直線運動系統的發展過程，工業導軌出現的是滑動導向。但因為其摩擦阻力較大、運動存在間隙、壽命低、潤滑油使用量大等等原因很快就被淘汰掉。進而衍生出滾輪導軌系統，它具有平穩的運動系統，而且還能適應惡劣環境。

The development of guide rail is also the development process of linear motion system. The first appearance of industrial guide rail is sliding guidance. However, it was quickly eliminated because of its large friction resistance, movement clearance, low service life, large amount of lubricating oil and so on. Then the roller guide rail system is derived, which has a stable motion system and can adapt to the harsh environment.

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