The rolling element is guided by a ball bearing contained in a sleeve or along a track. A linear motion bearing can contain ball bearings or roller bearings, which are flat cylinders. Bearings promote smooth, low friction motion, and they are usually lubricated in some way to further reduce friction and excite linear motion bearing systems for longer life. In some cases, these bearings are completely contained in the system to protect them from dust, dirt, and even impact damage, although in other cases, the bearings can be exposed along the track. The system usually includes the sliding surfaces of bearings that use a fixed plane and slide with each other.

滾動(dòng)功能部件產(chǎn)品包括：滾珠絲杠副、滾動(dòng)直線導(dǎo)軌副、滾珠花鍵、滾珠導(dǎo)套、直線運(yùn)動(dòng)部件、坐標(biāo)工作臺(tái)、自鎖器等。它們以"滾動(dòng)"為特征，具有省能、精密定位、精密導(dǎo)向、對(duì)CNC指令反應(yīng)快速以及傳動(dòng)的高速性、同步性、可逆性等功能，是數(shù)控機(jī)床和機(jī)電一體產(chǎn)品不可替代的關(guān)鍵配套件，也是符合21世紀(jì)生態(tài)、理念的重要基礎(chǔ)零部件。它們產(chǎn)品雖小，卻集成了精密零部件制造的許多關(guān)鍵技術(shù)。由于它們的標(biāo)準(zhǔn)化、系列化、通用化程度很高，又有廣闊的市場(chǎng)，十分有利于組織化大批量生產(chǎn)。

Products of rolling functional parts include: ball screw pair, rolling linear guide rail pair, ball spline, ball guide sleeve, linear motion parts, coordinate workbench, self-locking device, etc. Characterized by "rolling", they have the functions of high efficiency and energy saving, precise positioning, precise guidance, rapid response to CNC commands, high speed, synchronization and reversibility of transmission. They are irreplaceable key accessories for CNC machine tools and mechatronics products, and also important basic components that meet the ecological and environmental protection concepts of the 21st century. Although their products are small, they integrate many key technologies of precision parts manufacturing. Because of their high degree of standardization, serialization and generalization, and broad market, they are very conducive to organizing professional mass production.

隨著機(jī)床速度的提高，導(dǎo)軌的使用也由滑動(dòng)向滾動(dòng)轉(zhuǎn)化。在，由于機(jī)床速度較低及制造成本上的原因，滑動(dòng)導(dǎo)軌的使用還占大多數(shù)，但使用滾珠導(dǎo)軌和滾柱導(dǎo)軌的機(jī)床數(shù)量在急速上升。由于滾動(dòng)導(dǎo)軌具有高速、長(zhǎng)壽命、可加預(yù)壓、安裝方便等方面的優(yōu)點(diǎn)，隨著對(duì)機(jī)床性能及數(shù)控化要求的提高，滾動(dòng)導(dǎo)軌使用比率的提高是必然的趨勢(shì)。

With the increase of machine speed, the use of guide rail has also changed from sliding to rolling. In China, due to the low speed of machine tools and manufacturing costs, sliding guide rails are still used in the majority, but the number of machine tools using ball guide rails and roller guide rails is rising rapidly. As the rolling guide has the advantages of high speed, long service life, preloading and convenient installation, with the improvement of machine tool performance and numerical control requirements, the improvement of the utilization ratio of rolling guide is an inevitable trend.

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