Drop-shaped hinge with bearing: installation and design features

The goal of the gate is to lock securely, withstand force loads, and be functional. Another good gate is that it opens and closes comfortably. You not only need to know how to weld hinges on a gate or wicket, but also be able to use electric arc welding, then everything will be done efficiently and correctly. When the elements are welded correctly, the gate will open well. At the same time, there will be no gaps in the closed gate.

Variety of options

Features of the teardrop model

A drop-shaped hinge with a bearing is a combination of classic convenience of fittings and its practicality in installation. This version of awnings is considered modern and practical. The invention itself has the shape of a cylinder, but for ease of use during production it is given a drop-shaped shape.

They are made of metal, and their special shape allows for convenient installation using a welding machine. The seam is as smooth and durable as possible. Thanks to this, the canvas holds securely, even if the load on its frame is high. The presence of a ball bearing, which is located between the welded hinges, ensures smooth and soft movement of the valves.

Hinge model equipped with roller bearing

Planning the design

Metal fences and gates begin to be made by determining the location of structural elements and taking measurements based on which the frame and posts will be made. This stage is quite important, since the necessary materials are purchased based on the measurements taken. You can opt for metal poles or give priority to brick supports.

Also, at the planning stage, a gate scheme is developed, which can be sliding or swing. The choice of design determines the manufacturing features (for example, for sliding gates, in addition to supports, it is necessary to create an additional platform on which the rollers that displace the gate will move).

The minimum width (or diameter for round posts) must be 10 cm, otherwise the structure may sag. This figure is justified if the cladding material is relatively light in weight. When choosing heavy materials, you need to increase this indicator. For the correct installation of gates and wickets, all collected data is transferred to drawings of metal structures (it is much easier to make adjustments on paper than during the installation process).

Why do you need a roller bearing?

A ball bearing is used between the running joint parts. Such a mechanism is always metal and is of high quality, since it bears the main weight. In addition, thanks to the stop, the friction force of the running parts is reduced. Bearings are used in ball or washer form. They are treated with oil lubrication for better performance. Usually they are lubricated when the doors are hung, but after some time the lubricant dries out and is periodically renewed.

Drop-shaped garage hinges

Manufacturing sequence

In practice, there are 3 main ways to properly weld garage doors:

Before the garage is built, the door frame is prepared separately as a single piece. After this, they are transported to the construction site and installed in the opening. The metal frame is then covered with building material.
In the finished garage, the doors are made according to the dimensions of the opening, the frame is installed and the panels are secured.
Using the already made opening, all parts of the structure are welded in stages right on the spot.

Before processing
In this case, high accuracy of preliminary calculations and measurements is not required, there is no need to maintain the diagonals of the structure down to the millimeter, and there is no need to transport massive metal products.

If the work is done correctly, the welded product will stand securely and work without breakdowns for a long time.

It is necessary to weld the frame correctly

Improved teardrop-shaped hinges on support bearing

Today, such teardrop-shaped fittings have received another significant feature. Now the sashes are also adjustable for mounting height. The hinge acquired this feature thanks to the use of the following adjustments in production:

the lower half of the fittings, like the upper, is now hollow, but has a through hole;
applying a thread in the hole of the lower part from below;
the loop rod in the cavity of the lower part tightly rests against a screw screwed into the thread from below;
An intermediate flange is used between the roller bearing and the hinge element.

Thanks to the latter feature, the panel is welded and adjusted in height or compensation is performed for shrinkage during operating time.

Types of loops

Hinges for fastening swing gates can vary in shape, number of sections and method of fastening. The most reliable, and therefore the most popular, method of fixation is welding.

All other loop parameters depend on the type:

Cylindrical hinges – equipped with a support bearing, designed for gates of light weight. Permissible load – 400 kg. Attached by welding.
Cylindrical with reinforcement - they differ from the previous ones by the presence of a special plate to distribute the load between the sash and the post. Maximum load – 600 kg. Fastening by welding and screws.
Through hinges are used where it is not possible to use welding or a screw connection. They are fastened in the following way: the post is drilled through, and the connection to the sash is made with nuts. Maximum load – 200 kg.
Three-section overlays - designed for massive sashes, with them there is no risk of sashes sagging or squeaking, and opening will be smooth. In addition, such structures are famous for their increased burglary resistance.
Zhikovinas (forged hinges) - in addition to their direct purpose, also serve as decoration, giving the gate a special colorful look. Mainly used for wooden structures.
Hinge - boom, hinged or half-hinged - used for heavy and thick gates, doors or wickets. Available: regular, curly and removable. The best option for massive garage doors.
Adjustable – design features allow you to change the height of the sash. They are used if there is a high probability, under any circumstances, of displacement of the support posts. Withstand load – up to 200 kg.

As already mentioned, you can weld the hinges yourself if you approach the process responsibly and follow all the rules and technology. However, if you do not have the necessary skills for installation or you are not confident in your capabilities, it is better to use the services of specialists.

Video: How to weld a turned hinge

Swing gates made of corrugated sheets

Wave slate fence

Lifetime

The teardrop canopy distributes the weight of the door equally across the entire ball bearing surface. Unlike the commonly used ball to set the door in motion, a washer bearing allows the door hinge mechanism to last longer. Thanks to experiments conducted on the strength of a modern drop-shaped canopy, it was concluded that the minimum service life is 53 years.

Model size and characteristics

Completion

After carefully welding the bayonet parts of the loops on the pole, you will need to attach the inserted upper parts of the loops to them immediately with the balls. Then press the baited part against the door leaf as tightly as possible and continue welding work.

At the end of the welding work, the seams can be processed with a grinder.

This technology has been successfully used by all door installation services for a long time. It will not be difficult to do this yourself if you have welding skills and the necessary equipment with consumables:

Metal door hinges;
Plates/plates;
Welding machine;
Electrodes;
Bench hammer;
Welding mask, gloves and overalls;
Bulgarian.

Aesthetic characteristics of the model

When attaching teardrop-shaped fittings, the weld seam is neat. This improves the overall aesthetic appearance of the mechanism. The added bonus to this is strength and durability. It is worth saying that this kind of hinged structure has a smoothly polished surface. This means that the powder paint will adhere to the door and onto it firmly. The paint will protect the surface of the door mechanism from chips and unwanted physical impacts during operation, and the externally painted hinge element to match the door looks beautiful and organic.

Selection of corrugated sheets

Corrugated sheets differ among themselves in thickness, degree of strength and rib height.

“C” is a lightweight and durable galvanized wall sheet with low thickness and rib height. The most common choice;
“NS” is a denser profiled sheet with a higher rib height, but also heavier;
“N” is a massive load-bearing corrugated sheet, used for roofs of a huge area. Not suitable for gates due to heavy weight and high cost.

The best choice would be a profiled sheet of grade C8 or C10. The number indicates the height of the wave in centimeters. The thickness of the sheet of this brand is from 0.4 to 0.8 mm. Sashes made from grade C corrugated sheets will weigh from 25 to 40 kg, so they can easily be hung by two people, without the use of special lifting equipment. Due to the fact that one profiled sheet per sash will not be enough, the size is calculated based on the width of the material.

How to install teardrop-shaped canopies?

It is easier to mount mechanical awnings in a horizontal position with the frame and canvas. When vertical welding, even a specialist will have difficulties in working. The fastening seams for the hinges are made continuous. It is believed that this welding method is reliable in strength. Before starting installation work, you will need to take preliminary measurements and determine the future location of the canopies. After the calculation stage, they proceed directly to their installation.

Drop-shaped model

The fittings are fastened according to the following scheme:

the profiled cover is disassembled into two parts, each of which is drop-shaped, one of which with a bearing is welded to the box, and the second to the running surface;
the bottom element is installed first;
then they try it on, so first the parts of the mechanism are not welded with a continuous seam, but are only tacked in several places;
if the parts are located correctly, then the final strong attachment is made using a welding machine.

Such drop-shaped loops are always designed for a large mass of fabric. The main condition for installation is to make a strong seam, then the loop will easily withstand any weight. To have an accurate idea of what a teardrop-shaped hinge mechanism looks like and what its features are, we suggest watching a short video review of one of these models.

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Tips and tricks

Incorrect welding can lead to problems during further operation; to prevent this from happening, you should listen to the following recommendations:

Before starting work, make and study a schematic drawing; if all the details are taken into account in advance, then the risk of redoing the finished structure will be much less;
straight hinges are welded to the gate laid on a flat surface;
You can open gates with newly welded hinges after the seams have completely cooled;
on round posts the loop extends 5 mm outward, on rectangular posts it is welded flush;
the welding seam should go from bottom to top.