1) Basic structure and performance

基本構造是由1.直線導軌、2.直線運動滑導塊、3.滾動軸承用滾珠構成。

The basic structure is composed of 1. Linear guide, 2. Linear motion guide block, 3. Rolling bearing ball.

對于這種構造可根據使用規(guī)格選擇各種產品。例如采用密封板類零件構造可實現其防塵性和無塵室使用要求，采用滾珠保持器構造可提高其滑動性能等等。此外，對于直線滑動條件和負載、為了實現更高的導向精度，根據實際情況可采用2支導軌或和多個滑塊的構造。

For this structure, various products can be selected according to the specifications. For example, the use of sealing plate parts can achieve the requirements of dust-proof and dust-free chamber, and the use of ball retainer can improve its sliding performance. In addition, for linear sliding conditions and loads, in order to achieve higher guidance accuracy, according to the actual situation, the structure of two guide rails or multiple sliders can be adopted.

(2)滾動軸承部的構造和功能

(2) Structure and function of rolling bearing part

(a)滾動軸承單元的構造

(a) Structure of rolling bearing unit

直線導軌的性能基本上是由滾動軸承單元的構造決定的。導軌上滾珠用導向槽的個數稱為「列數」，在滾道內滾珠的接觸點數作為「點接觸數」、用來表現滾珠軸承單元的構造。這種多列滾珠軸承的構造，即使在急速加減速時承受力矩載荷或長時間在嚴苛條件下連續(xù)運行等情況下，也可保持其精度。

The performance of linear guide is basically determined by the structure of rolling bearing unit. The number of guide grooves for balls on the guide rail is called "column number". The number of contact points of balls in the raceway is regarded as "point contact number", which is used to represent the structure of ball bearing unit. The structure of the multi row ball bearing can keep its accuracy even under the condition of bearing torque load during rapid acceleration and deceleration or continuous operation under severe conditions for a long time.

此外，也有在預壓狀態(tài)不同的情況下、軸承單元的接觸狀態(tài)會發(fā)生變化，用以維持高剛性?高精度的產品構造。

In addition, under different preloading conditions, the contact state of the bearing unit will change to maintain high rigidity and high precision product structure.

(b)關于無噪音、平穩(wěn)運行

(b) Noise free and smooth operation

直線導軌采用循環(huán)滾珠型構造，摩擦力小、可實現平穩(wěn)運行。另外還有內置滾珠保持器，循環(huán)滾珠相互接觸、無摩擦音，可實現長久無噪音和平穩(wěn)運行的的直線導軌滑塊構造。

The linear guide adopts the circular ball structure, which has small friction and can realize smooth operation. In addition, there is a built-in ball holder, which makes the circulating balls contact each other and has no friction sound. It can realize the linear guide slider structure of long-term noiseless and smooth operation.

(3)其它直線導軌

(3) Other linear guides

不需要高剛性的場合，可采用精 密成形的U型不銹鋼鋼板、將軌道部和安裝面 一 體 化的精 密滾珠滑軌構造，具有小型?輕量?低的特點。

Where high rigidity is not required, precision formed U-shaped stainless steel plate and precision ball slide structure integrating track part and mounting surface can be adopted, which has the characteristics of small size, light weight and low price.