In the field of industrial manufacturing, guide rail is a common structure. It can not only be used as a part of fixed machine parts, special equipment and instruments. And its rich choice of models undoubtedly provides consumers with personalized solutions. However, if it is a friend who buys for the first time, he may be troubled by the choice of models. After all, there are many models. So today, considering this problem, Bian Xiao will give you an example to explain the knowledge and selection method of guide rail model.

I. Model of guide rail

HG series linear guide rail (precision point)

HGR 15-R 1000-H，HGR20-R 1000-H，HGR25-R 1000-H，HGR30-R 1000-H？ HGR35-R 1000-H，HGR45-R 1000-H，HGR55-R 1000-H，HGR65-R 1000-H？

HGH series heavy slider (precision point)

HGH 15CAZ 1H，HGH20CAZ 1H，HGH25CAZ 1H，HGH30CAZ 1H，HGH35CAZ 1H，HGH45CAZ 1H，HGH55CAZ 1H，HGH65CAZ 1H

HGW series heavy slider (precision point)

HGW 15CCZ 1H，HGW20CCZ 1H，HGW25CCZ 1H，HGW30CCZ 1H？ HGW35CCZ 1H，HGW45CCZ 1H，HGW55CCZ 1H，HGW65CCZ 1H

? HGH series overload slider (precision spot)

HGH20HAZ 1H，HGH25HAZ 1H，HGH30HAZ 1H，HGH35HAZ 1H？ HGH45HAZ 1H，HGH55HAZ 1H，HGH65HAZ 1H？ HGW super series

Heavy slider (precision point)

HGW20HCZ 1H，HGW25HCZ 1H，HGW30HCZ 1H，HGW35HCZ 1H？ HGW45HCZ 1H，HGW55HCZ 1H，HGW65HCZ 1H

EG series linear guide rail (precision point)

EGR 15-R 1000-H，EGR20-R 1000-H，EGR25-R 1000-H，EGR30-R 1000-H？ EGH series heavy slider (precision spot)

EGH 15CAZ 1H，EGH20CAZ 1H，EGH25CAZ 1H，EGH30CAZ 1H？ EGW series heavy slider (precision point)

EGW 15CAZ 1H，EGW20CAZ 1H，EGW25CAZ 1H，EGW30CAZ 1H？ EGW 15CBZ 1H，EGW20CBZ 1H，EGW25CBZ 1H，EGW30CBZ 1H？

EGH series medium-load slider (precision grade spot)

EGH 15SAZ 1H，EGH20SAZ 1H，EGH25SAZ 1H，EGH30SAZ 1H？ EGW series medium-load slider (precision point)

Second, how to choose the model of linear guide rail

1- Determines the track width.

Track width refers to the width of the slide rail. Rail width is one of the key factors to determine its load. Generally, the square track products of four volleyballs (there are also two volleyballs) are 15, 20, 25(23), 30(28), 35(34), 45, 55(53) and 65(63), and some brands only produce to the maximum. There are also 85, 120 futures products, but most manufacturers do not produce them.

2- Determine the track length.

This length is the total length of the track, not the stroke. Total length = effective stroke+slider spacing (more than 2)+slider length × number of sliders+safe stroke at both ends. If protective sleeves are added, it is necessary to increase the compression length of protective sleeves at both ends. It should be noted that ask the maximum length of the whole guide rail of this brand in advance, if it exceeds this length, it needs to be docked. Most manufacturers have a maximum length of 4000 (micro-track is generally 1000), and some have a length of 3000, which is related to the processing equipment of the manufacturers. Need docking, users want to process the installation holes on the machine in advance, it is best to provide interface drawings. Another point, please pay special attention to, the spacing of mounting holes on the guide rail is fixed, and users should pay attention to the position when determining the length of the guide rail. For example, the guide rail of 15 is 600 long. If you don't tell the supplier the required end size, the general arrival status is 10 installation hole, and the distance between the two ends of the guide rail and the center of the nearest installation hole is 30 or 30, but it may be other sizes. Different brands have slightly different delivery regulations for the end size, and most of them are equal at both ends by default. One more thing, the error of guide rail length is generally below 2000 1 ~ 2mm by default, and below 2000~4000, it is 2 ~ 3mm. If users require higher accuracy, it is best to indicate the error value or provide drawings in the order contract. In this case, the supplier may charge additional processing fees.

3- Determine the slider type and quantity.

There are two kinds of commonly used sliders: flange and square. The former is lower in height but wider, and the mounting hole is a threaded hole, while the latter is higher and narrower, and the mounting hole is a threaded blind hole. Both of them are divided into short type, standard type and extended type (some brands also call them medium load, heavy load and super heavy load). The main difference is that the length of the slider body (metal part) is different, of course, the hole spacing of the mounting holes may also be different. Most short sliders have only two mounting holes. The number of sliders is determined by the user through calculation, and only one is recommended here: small enough to carry and large enough to install. The type and number of sliders and the width of the slide rail constitute three elements of the load size.

Although there are many models under the guide rail, different models of products correspond to different application fields and applicable people, so users will face the trouble of choosing in the purchase process. But there are rules to follow. You only need to know the model classification in advance, refer to the steps, methods and suggestions given above, analyze the model knowledge, the width and length of the track and other parameters, and determine the optimal scheme through U-O comparison, then you can generally achieve satisfactory results.

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