The mechanism of roller guides is a pair of so-called rails, between which several (2 or more) small wheels are installed.
Roller guides are the simplest in terms of device and mounting guides.
The latter ensure the movement of both parts of the device in two opposite directions, that is, they allow both to increase the length of the structure and to return it to its original state.
The movement takes place in one plane (usually horizontal) and is limited by the size of the runners.
The material of each component has a significant impact not only on the degree of mobility of the guides, but also on the durability of the whole mechanism. To maximize the life of the device, the rails are made of metal, and to ensure the necessary progress of the runners, the rollers are made of plastic.
Roller guides for boxes.
The main reason for using roller guides is the almost complete absence of friction between moving parts.But this process strictly leads to damage and subsequent destruction of the interacting surfaces and the structure as a whole.
You can find roller guides for drawers with a depth of 250 to 800 mm, that is, in almost all cases.
In addition, due to friction, much more effort is required to move the runners, which also occurs at a slower speed.
Roller guides are covered with durable epoxy enamel.
Content
Possessing its own set of useful properties, ball guides compete with roller guides for a long time.
Ball guides as well as roller consists of two parts. One of them is mounted on the box, the other on the side wall.
In the first case, the role of a component that provides mobility to improvised rails is a small ball, and in the second, a small roller.
The mechanism of ball guides.
The mechanism of roller guides.
And even despite the fact that in the manufacture of the latter can be used bearings containing spherical elements, it is this feature of the mechanisms that caused their names.
Roller guides withstand dynamic loads up to 25 kg.
If we talk about the popularity of these devices, the most common are still roller products.
The drawbacks of roller guides are the noise with which they slide out and close.
Their demand was influenced by the fact that the ball guides are much more often found in the non-separable version. This does not so much impede installation or complicates installation, but seriously limits the scope of the mechanism.
There are many types of ball guides, they differ mainly in height, as well as in the degree of extension and the presence of the closer.
For some time now the scope of roller guides is inextricably linked with furniture production.
It is in this area most often involved such items.
The device is usually used for making wardrobes with folding bars, shoe pedestals with hidden niches and wardrobes with drawers. Since the latter are more common, they will be discussed later.
An example of the use of roller guides to pull boxes in the drawer.
The mechanism is mounted on the side walls of the duct from the outside, which does not help to reduce the usable space of the box itself.
Roller guides are partial extension guides.
This means that you cannot fully pull out the drawer.
In order not to damage the back wall of the cabinet and not to detach the drawer from it, the runners contain special stops that take the form of artificial irregularities on the surface of the rails.
Correct calculation and installation is the basis for the successful application of roller guides.
And in order to provide additional opportunities for the removal and installation of the box, the main components have technological holes.
Ball guides would not allow to pull out and insert the box after assembling furniture without disturbing its facades.
Boxes on which guides will be installed.
Fastening guide to the side of the box.
Box with guides installed.
Marking guides on the walls of the facade.
This manipulation is repeated for all three pairs of guides.
Assembling boxes with installed guides.
The use of the mechanism with pushing pushers, which also play the role of limiters, allows, without loss of functionality, to preserve the appearance of the furniture fronts and its back wall.
Cabinet with mounted roller guides.
Install the boxes themselves inside the box and get the finished piece of furniture.
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