How to make homemade caterpillars with your own hands. Do-it-yourself caterpillars for a car or a tank from Niva and UAZ. what is the cost of remodeling? Making caterpillars

When operating in off-road conditions, tracked vehicles have undeniable advantages over wheeled transport due to its all-terrain qualities, allowing it to overcome deep loose snow, soggy arable land or rocky ford.

The popularity of tracked vehicles among household users is so great that many home craftsmen independently “convert” their wheeled vehicles into homemade ones - tracks made from scrap materials.

One of the retrofitting options is to use old tires from MTZ tractors, allowing significantly increase cross-country ability personal auto and motorcycle equipment at minimal financial costs.

For a tracked vehicle of any purpose, be it a tank or a snowmobile, forward motion is provided by a tracked propulsion unit (CT).

It uses two motivating factors:

torque Mk, transmitted from the engine/power drive to the drive wheels;
adhesion of tracks to the ground.

A caterpillar or caterpillar chain of a main engine is a link structure, which is a continuous continuous belt or chain.

For full traction with the ground surface, the caterpillar equipped with relief protrusions, serving as active lugs.

The caterpillar principle is illustrated by the kinematic diagram of the main engine operation located below. The following positions are indicated on the diagram:

pos. 1 – caterpillar;
pos. 2 – support rollers that prevent the track belt from sagging;
pos. 3 – drive sprocket (drive wheel), which converts torque from the engine into traction force necessary for the forward movement of the machine;
pos. 4 – support rollers, ensuring full contact of the track belt with the surface of the ground support;
pos. 5 – shock absorbers;
pos. 6 – guide wheel, which serves to direct the forward movement of the machine and transfers part of its weight to the ground.

Movement according to the caterpillar principle carried out as follows:

Torque Mk is supplied to the drive sprocket (item 3).
The rotating sprocket rewinds the continuous track belt/chain (item 2).
The caterpillar (item 2) is in close adhesion to the support surface (soil, loose soil, etc.). It is affected by:

force R z – reaction of the supporting surface, which the caterpillar transmits to the vehicle frame;
tangential reaction of the ground support P k.

The rewindable track belt/chain is continuously laid in the direction of forward movement of the vehicle on the surface of the ground support under the road wheels, creating for the wheels of the vehicle path with lower resistance to movement than on soft ground.

During movement, the caterpillar belt rises from the supporting surface and transfers the pushing force to the vehicle frame.

The specific pressure on the support (soil) along the length of the track is uneven - increased in the area of the drive sprockets, decreased in the front part in the area of the guide wheel (item 6). The maximum pressure on the ground from the main engine is in the area of the road wheels (item 4).

Advantages of homemade diesel engines from MTZ tires

Thanks to the continuous placement of the caterpillar belt under the machine's rollers, a large contact area of the belt with the ground, significantly reducing the average pressure of the machine on the soil.

The range of average pressure on the ground of equipment with deep pressure is from 11.8 to 118 kN/sq.m (from 0.12 to 1.2 kgf/sq.cm), which is significantly lower than the pressure of a human foot.

Such low pressure levels ensure that equipment is protected from sinking into the ground, swampy soil or snow. By varying the size of the surface area in the contact zone of the track with the support, an optimal ratio of the vehicle's cross-country ability with its traction force for towing cargo is achieved.

When equipping vehicles with caterpillar tracks, homemade DIYers use transport belts or tires from automobile and tractor wheels.

The photo below shows homemade all-terrain vehicle on tracks made of reinforced conveyor belt with a width of 250 mm. Grousers with a height of 25 mm are used.

All-terrain vehicle made from a conveyor belt:

For most craftsmen, the preferred source materials for the manufacture of diesel engines are old tires from MTZ tractors of various models.

The main advantages of MTZ tires, as a source material, and the tracks themselves made from these tires include the following factors:

Availability old MTZ tires. Quite often, after dismantling, they are stored in the depths of the utility yards of enterprises, cluttering the territory.
The tire is a closed continuous structure, does not require sewing the ends tapes.
On a tracked platform made from a tractor tire no need to increase lugs, since the tires have a pronounced tread pattern of the factory design.
MTZ wheel tires have high strength and wear resistance, ensuring reliable, trouble-free operation of the caterpillar belt on soils containing sharp stones.
Versatility applications - you can select tires for all types of tracked vehicles, including measures to modernize equipment or increase the width of tracks.
Recycling of used tractor tires solves the most important problem of recycling dismantled wheels - the possibility of their reuse.

From shortcomings When working with tractor tires, two circumstances are noted:

limited fixed track length, determined by the size of the tire blank;
the need to double two tires when installing a track with a width exceeding the width of one blank tire.

Requirements for converting equipment to caterpillar tracks

The picture shows simplest in design homemade cart with tracks made from tires.

The re-equipment of equipment for diesel engines is carried out exclusively for utilitarian reasons of pragmatic owners of wheeled vehicles or motor vehicles who wish improve all-terrain qualities their "helpers".

For all models of equipment intended for driving in field conditions, the market offers serial versions of industrially manufactured gas engines.

However, all this costs a lot of money, and tires free or very cheap.

Many equipment users manage to independently, in a home workshop, make tracks from tractor tires, install them on their machines and successfully operate in off-road conditions.

Regardless of the type of vehicle or motor vehicle, technicians take into account the following factors:

To install the main engine mechanisms, it is necessary to equip special frame structures increased strength and rigidity, capable of withstanding increased weight and dynamic loads.
When using improvised means, many craftsmen use pneumatic wheels as tensioners, as well as a pair of driving and driven wheels. The tape is put on the flat tires, which are then inflated, creating the required track tension.
The owner of the equipment must clearly determine the purpose of the machine in order to select optimal sizes width and length of the caterpillar track.
Taking into account the increase in weight and traction loads on the engine after installation of the main engine, it is necessary to optimize the correspondence between the maximum engine power and the width of the track. Otherwise the engine breaks down quickly.

When choosing the ratio of engine power and belt width of a homemade tracked installation you can be guided by price list data on all-terrain vehicles equipped with serial tracks.

Below we will consider the categories of machines that are most popular among craftsmen when converting them to crawler tracks.

Main categories of popular equipment equipped with gas engines

The list of models of household vehicles and motorcycles operating on loose snow and marshy soils is unusually wide.

The names of the machines themselves, accepted in everyday life, indicate their field of application.

Snowmobiles

This vehicle designed for movement on loose snow cover.

Unlike the anglicism “snowmobile”, which denotes any vehicle adapted for movement on snow (snowmobiles, all-terrain vehicles on tracks and pneumatic wheels, etc.), in Russia a snowmobile is only called means of ski-caterpillar movement(rear main engine, in front - skis instead of the front wheel) with motorcycle-type controls.

For utilitarian snowmobiles, the engine power is 30-40 hp, the track width ranges from 38 cm to 50 cm and even 60 cm.

Accordingly, if a master sets his task to create a machine for moving on virgin snow with a load, then he should focus on these indicators.

Similar parameters must be maintained when creating so-called snow and swamp-going vehicles.

If the master needs make a faster snowmobile(like sports ones), then the width of the tire track can be reduced.

The weight loads of a high-speed vehicle are much lower than those of a cargo utility vehicle.

The picture shows a motorcycle-based snowmobile equipped with a homemade 23 cm wide track cut from an excavator tire.

Otherwise, a homemade snowmobile track is made with your own hands according to the basic principle.

All-terrain vehicles

They are commonly referred to as any vehicle capable of driving off-road and even overcome water obstacles.

Types of all-terrain vehicles industrial production plenty:

SUVs;
swamp walkers;
amphibians;
tracked tractors and conveyors;
ATVs;
ATV category vehicles, etc.

Their cost not everyone can afford it, therefore, in home workshops they prefer to create their own exclusive products, “re-shoeing” their cars with tracks from tires made by themselves for an all-terrain vehicle.

Depending on the engine power of the vehicle, wider blades can be allowed.

For homemade all-terrain vehicles with a 40-70 hp engine. and a small weight load, a tape width is sufficient 30-40 cm.

For vehicles based on UAZ vehicles with an engine of 110-150 hp. track width required 40 cm with support rollers (6 pcs.) and support rollers (3 pcs.).

Naturally, the profile height of a tractor tire will not be enough to overcome a water obstacle, it is necessary to install high lugs.

The figure shows an all-terrain vehicle based on the Oka vehicle with a caterpillar track made of tires.

Walk-behind tractors

Represented by numerous mobile devices based on a single-axle chassis. Converted for the State Duma homemade options walk-behind tractors are widely in demand among rural residents and owners country houses or summer cottages.

The motivation for independently re-equipping units, bypassing the purchase of serial tracks, is obvious.

The cost of the NEVA wheeled walk-behind tractor does not exceed 1000 dollars. USA, while the most simple machines, adapted for movement on snow, are estimated at 5-10 thousand dollars. and higher.

The drive power of the walk-behind tractor (5-8 hp) is quite enough to be successfully used as an all-season vehicle

Motorcycle dogs

Motorized towing vehicles, nicknamed motorized dogs in everyday speech, are a mechanical coupling of a sled with a towing vehicle on a main engine. The driver and cargo are placed in the sleigh.

Serial models are produced in a wide range of drive power (from 6 to 30 hp) and are equipped with a motor made of rubber-metal tape up to 60 cm wide.

Home craftsmen usually make towing vehicles based on a 15 hp engine from improvised means, installing tracks from tires 500 mm wide.

Such homemade motorized dogs are capable of transporting sleds with a load of up to 700 kg, reaching speeds of up to 40-50 km/h.

Most often, a homemade caterpillar for a motorized dog is made from a tire to save money.

The photo shows homemade motorized towing vehicle based on a walk-behind tractor.

Algorithm for making a caterpillar belt with your own hands

The caterpillar track for any model from the above categories of equipment is made from tires of various sizes corresponding to the selected design. Let's look at how to make a caterpillar from a tire step by step.

The work on tape production is unified and follows a general algorithm.

Special knowledge is not required when making a caterpillar from a tractor or car tire, however you can’t do without certain plumbing skills.

The process of forming a caterpillar track from an MTZ tire consists of several stages:

Select a tire with a slightly worn tread.
The path is being cut for the caterpillar using a sharpened shoe knife. Working with a sharp knife is dangerous and requires increased caution and attention.
To cut rubber better, it is recommended to use a knife periodically damp soap solution .
Cutting with a knife can be successfully replaced jigsaw, protecting yourself from possible injury.
Both sides are cut off tires.
Excess material is removed from inside the tire.

The criterion for quality work is an even cut without frayed edges of the resulting tape.

So the track element is ready to use:

Conclusion

Making homemade tracks for converting equipment to caterpillar tracks is a very popular way to expand the functionality of machines at minimal cost.

The use of dismantled old tractor tires for HD helps to solve the problems of recycling old tires without the use of traditional waste processing methods - burning, grinding, chemical treatment, etc.

In contact with

For such transport, caterpillars become big problem, which many snowmobile enthusiasts encounter. To resolve the issue, some resort to the most different options implementation of ideas.

The article presents the most worthy methods for quickly constructing a homemade snowmobile track, which have proven themselves excellent in operation.

Tools and material

For the manufacture of different types homemade caterpillars use the same tools and materials. There is plenty of such goodness in every household. And if something is missing, you can buy it in the store. Scroll necessary materials and tools:

a large knife with a durable, sharpened blade, preferably used as a hunting knife;
used for simplified work electric jigsaw, but the teeth on the blade should be fine;
spanners, bolts and nuts - this is necessary to equip the track with a clutch. It is recommended to select long bolts. The nut is tightened from the outside of the product (the bolt is passed from inside to the outside);
fishing line to strengthen the edges;
cable or similar material for tying individual parts of the future caterpillar to the snowmobile;
a hammer and a sharp pin for making holes in the product.

Making tracks from tires

This option for constructing rubber tracks has a number of advantages. There is plenty of material to be found. In case of urgent need it won't be difficult to carry out renovation work in a very short time. To make rubber tracks, you should choose truck tires. In addition, the tread must be identical in pattern to the rest of the tires - this will significantly simplify further work.

Manufacturing process:

Initially, a tire is taken. A transverse cut is made to create a strip. The sides are cut out of it - a kind of treadmill should be formed. The procedure requires a lot of patience, because cutting out excess parts of the tire is quite labor-intensive. The tools used are a large knife with a good sharp blade.
Rubber is easy to cut if the knife is soaked in warm, soapy water. Wetting needs to be done periodically. To achieve greater ease of operation, you should use an electric jigsaw with a fine tooth blade. The blade is also soaked in soapy liquid from time to time.
If the tire hardness is high, it is recommended to remove a couple of layers of rubber from the inside - this is very difficult, so it is easier to find a tire with a soft structure. In case of dissatisfaction with the tread pattern, new cutting of the lugs is allowed at your discretion.

A rubber track made by yourself has a huge advantage - it is a closed loop. With this advantage, reliability and strength are significantly increased. The only thing you need to pay attention to is consolidation individual elements tires when creating a track for a snowmobile. Often, some tire options are not suitable in width. In this case, you should find material for specific parameters or tighten individual pieces with a small cable.

Transport belt for caterpillar

This material is very common. Therefore, it will not be particularly difficult to find a transport tape. You can purchase it in used condition or, if possible, simply ask your friends.

Manufacturing process:

The conveyor belt may soon deteriorate during operation, so it is necessary to stitch the sides of the material using thick fishing line. You need to do it the way seamstresses sew the edges of fabric using the overcasting method. If you do not do the work, then after some time the edges will turn into rags, therefore, the tape cannot be avoided. To give the rubber strip the appearance of a ring, stitching the ends is used, but the method is not very reliable. It is easier to use a hinge based on the type of piano hinge.
The thickness of the conveyor belt depends on the power of the motor. A strip 1 cm thick shows excellent results. It is used in agricultural machinery. It is allowed to use tape from old Soviet motorcycles.

The advantages lie in the abundance of resources. If a homemade track breaks down, it can be restored in a short time without professional tools. Before purchasing a full-fledged track, you can use the belt version for quite a long time.

Track belts

This option is very easy to manufacture and does not require any skills. The material is quite common. There will be no difficulties in purchasing it.

Manufacturing process:

The belts are wedge-shaped, therefore, creating a single piece of fabric is very simple. And the lugs can be made at your own request. Bolts and nuts or rivets are used as coupling.
The belts are convenient because they have holes that can easily be adjusted to the snowmobile's drive sprocket. For these purposes, a gap is left between the strips during operation.
For fastening, it is allowed to use any durable material, for example, a small diameter cable. It is important that the work is done efficiently, otherwise the entire structure will fall apart when driving.

There are actually many more methods for making DIY tracks. It also doesn’t hurt to use your imagination and come up with something better and replace the tires and rubber with a more practical material. But, nevertheless, tracks made from tires are considered the best solution. They are simple to manufacture, and the time spent on work will be minimal.

Video

See how you can make reliable snowmobile tracks with your own hands.

A DIY caterpillar can be made by any craftsman. If you have been thinking about how to make a caterpillar for a long time, then you should read the recommendations presented. To carry out the work you can use the most different instruments and materials. It is, of course, permissible, if necessary, to use a caterpillar that was produced in a factory. But it will cost much more than if you do the manufacturing yourself. The article will present several options for making tracks, one of which you can choose for yourself.

A simple option for making a caterpillar

A do-it-yourself caterpillar can be made using the simplest technology. It will take you minimal amount time. The caterpillar mover can be made on the basis of a bushing-roller chain, as well as a conveyor belt. To carry out the work you need to prepare a certain set of special tools or equipment. In order to extend the life of the tape, it is recommended to sew its edges with a fishing line, strengthening it at a distance of 1 cm. It is necessary to use the principle that seamstresses use to overcast the edges of fabric, which will protect the tape from damage.

A caterpillar can be made with your own hands by connecting elements into a single ring; this can be done in several ways. So, it is permissible to use a hinge like a piano hinge; you can also use a less reliable method, which involves sewing on the ends of the tape. It is important to note that the thickness of the tape must be selected, which corresponds to the power of the motor. If you intend to use an engine from a domestically produced motorcycle, then you can use a tape whose thickness is 10 mm, similar to that used on agricultural conveyors.

If you make your own caterpillar using this technology, you won’t have to spend a lot of effort. Despite the fact that this caterpillar model is quite simple to make, it has long term services and great resource.

Making caterpillars from car tires

You can make your own caterpillar using car tires. To carry out the work, you need to select tires borrowed from trucks; it is recommended to use a suitable tread pattern, and you will spend less strength when working with a tire. The manufacture of such a caterpillar must be done by cutting out the sides from the tire, while leaving space for a treadmill. It is worth considering that this work is quite labor-intensive and requires the application of a lot of patience and effort; you must use only a well-sharpened shoe knife.

In order to spend less effort when making a caterpillar for a car with your own hands, you can wet the blade from time to time using a soap solution. As an alternative solution, you can use a device designed for cutting; it is also possible to use an electric jigsaw. On the latter you first need to attach a file with small teeth, the file must also be pre-moistened with water, during the work such manipulations must be done periodically.

Work technology

Do-it-yourself tracks for a car must be made using a technology that involves the initial removal of the beads of the tires, after which, if necessary, you need to remove the excess layers that are located with wrong side formed ring, this is necessary if the track has increased hardness. If the tread pattern is not suitable, then you need to cut a new structure, which will be necessary so that the structure can cling to the soil.

A snowmobile track made with your own hands according to the scheme described above will have many advantages, even if compared with the option described above. This is due to the fact that it has a closed loop, which indicates reliability. But there are also disadvantages, one of which is expressed in the limited width of the track, but if there is a need, then a double width can be used.

Making a caterpillar from belts

The next version of the caterpillar is especially attractive because you don’t have to waste extra effort during the work. Before you begin, you need to prepare belts that have a wedge-shaped profile. They have to be connected into one whole using soil hooks that are fixed with screws; rivets can be used as an alternative solution. The result is a snowmobile track, created with your own hands, which has holes intended for the drive sprocket. In order to create the holes, you will need to leave some space between the straps.

Another option for making a caterpillar

Before you make a caterpillar with your own hands, you need to choose a technology for carrying out the work. It is also possible to use the method presented below. The propulsion frame can be welded using pipes that have a rectangular cross-section. It is recommended to connect them using a frame, this will make the structure collapsible. The splined part can be borrowed from the Buran, this will make it possible to make drive shafts; the splined part of the shafts, which are borrowed from the Oka, must be welded to them. It will also be necessary to use brake discs. When working on the front shafts, you need to install brake mechanisms on them. Some part of the gearbox housing needs to be cut off. Making a caterpillar with your own hands will allow you not only to save money, but also to move through snowy areas without any problems. This design can be used for a long time without the need for repairs.

Many people involved in the manufacture of homemade equipment also develop crawler-mounted all-terrain vehicles and homemade tracks for walk-behind tractors. When bringing this idea to life, people use a variety of solutions. But making tracks remains a big problem for fans of this type of transport.

After all, if an all-terrain vehicle or snowmobile is made with your own hands, then the tracks must be homemade.

How to make homemade tracks on a walk-behind tractor

Here we will look at several ways to make tracks with your own hands, with good performance characteristics.

The simplest version of homemade caterpillars

For light all-terrain vehicles and snowmobiles, tracks can be made from a conveyor belt and a bushing-roller chain. To make such tracks, you don’t have to own a special tool; everything can be done “on your knees.”

To extend the service life of the tape, it is necessary to stitch it along the edges with fishing line, observing a step of 1 centimeter, which will protect the tape from fraying. To connect the ribbon into a ring, you can sew the ribbon at the ends, or use a hinge.

When choosing the thickness of the tape, you should proceed from the engine power. If you use engines from domestic motorcycles, it is enough to take a tape 8-10 mm thick, used on conveyors in agriculture.

This DIY snowmobile track has a good service life and can be easily repaired if necessary.

Homemade caterpillar for motorized towing vehicle

It is very common among DIYers to make caterpillars using car tires. For this purpose, tires with a suitable tread pattern are selected from trucks.

To make such a caterpillar, you need to cut out the beads from the tire and leave treadmill. This is quite a labor-intensive job that requires a lot of patience, because the tool used is a sharpened shoe knife.

To make the work easier, from time to time the knife blade can be moistened in a soap solution to cut the rubber faster. One option is to use homemade device for cutting, or use a jigsaw with a file with small tooth.

After cutting off the sides, if the track is too hard, you can remove the extra layers of rubber inside the resulting ring. If the tread pattern is not suitable for the conditions of use, then a new lug structure is cut.

The undoubted advantage of a homemade caterpillar made from a tire over a caterpillar made from a transport belt is that it is initially a closed loop, and therefore reliable. The disadvantage of this caterpillar is the limited width of the workpiece, which can be corrected by using a double-width option.

Belt tracks

This version of making a caterpillar is attractive for its relative simplicity.
To do this, you need to connect belts with wedge-shaped profiles into one whole with screws or rivets, using lugs attached to the belts.

To make holes for the drive sprocket in such a track, you need to make gaps between the belts.
You can find many ways to make caterpillars with your own hands - the main thing is to have patience, desire and perseverance - then everything will work out.

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Many residents of northern latitudes and places with poor cross-country ability are engaged in the development and assembly of various equipment with increased cross-country ability. Tracked all-terrain vehicles are no exception. Exists a large number of various options creating such technology. But the most problematic issue for all-terrain vehicle designers is the manufacture of tracks.

You can, of course, use factory-made ones, but having completely assembled an all-terrain vehicle with your own hands, you want to have caterpillars of your own production. Today, there are several options for creating such propulsors, which practically do not differ in their technical characteristics from factory ones.

A simple version of caterpillars

The simplest option for snowmobiles is made from a conventional roller-bushing chain and conveyor belt. Moreover, its production does not require any special equipment or tools. In this case, the work can be done almost in the middle of the living room.

For the conveyor belt to last long time, you need to trim its edges with fishing line with a distance between stitches of about one centimeter. This activity is very similar to seamstress stitching fabric. In any case, such firmware will prevent the tape from unraveling while driving. You can fasten the ends together using any in a suitable way. A swivel joint similar to a piano hinge might work for this, or just sew it together, but it's unlikely to last long.

The thickness of the conveyor belt depends on the power of the power unit. If the all-terrain vehicle is equipped with an engine from a Soviet-made motorcycle, then a tape 0.8–1 cm thick, used on conveyors in agriculture, has proven itself to be excellent. To give the track rigidity, it is necessary to attach a bushing-roller chain to its inner part. This can be done using bolts or rigid steel wire. The main thing is that the chain fits tightly into the surface of the conveyor belt.

Caterpillars made in this way are distinguished by their long-term operation, although they are easy to manufacture. In addition, if necessary, you can easily carry out repairs, even in the field.

Tire propellers

Many owners of snowmobiles use regular car tires as tracks for their equipment. For these purposes, you need truck tires, and you should choose them with the required pattern so as not to complicate your work in the future.

To make a caterpillar mover from a tire, you need to cut off the sides, leaving only the part with the tread. This activity takes a lot of effort and requires patience, since the work requires only a well-sharpened shoe knife.

In order to make manufacturing a little easier, you need to periodically wet the knife with soapy water, which will make the process of cutting rubber easier. Some use specially designed devices for these purposes. You can also use an electric jigsaw with a fine-tooth file attached to it. It also needs to be watered with soapy water.

The first step is to cut off the beads from the tire. Next, if necessary, you need to remove several inner layers in the resulting track. This is done to give it softness. If the tread pattern is not satisfactory, then you should start cutting a new one, which is quite a painstaking task.

This type of track lugs has one undeniable advantage over the previous option. Since it is solid, without joints, its reliability is much higher. One of the negative aspects is the small width of the track, but to increase it, two or three tires can be spliced together.

Belt tracks

The ease of manufacturing of such tracked propulsion systems is increasingly attracting all-terrain vehicle owners to use them on their vehicles. Belts with a wedge-shaped profile are assembled into a single structure using lugs, which are attached to the belts using rivets or screws.

As a result, it turns out that the caterpillar track already has holes for the sprocket. To do this, it is necessary to lay the belts at small intervals.

Making tracks for an all-terrain vehicle

The name all-terrain vehicle refers to a vehicle with increased cross-country ability. These include tractors, snowmobiles, SUVs and tanks. Since often from improvised vehicles. Initially, this involves motorcycles or scooters, but the end result is a vehicle that is not afraid of either off-road or dirt. The increased cross-country ability of an all-terrain vehicle mainly depends on its tracked propulsion units, which are mounted on wheels.

In this version, the caterpillar will have four stripes 5 centimeters wide. They must be cut from a regular conveyor belt. Then connect the sides using a P-shaped profile. Next, you need to make balancers. Using a stamp, you need to make parts for the floor of the wheel from sheet steel. After this, it is necessary to make hubs from bronze. The half wheels should be connected with six bolts. The balancers are ready.

The next step is to produce the shafts for the track support drums. They should have holes for the bearings. Drums can be made from duralumin blanks. When connecting them together, you need to insert a rubber sprocket. It turns out that the caterpillar is driven from the drive sprocket with chain drive. It is installed on the rear fork.
After which the entire caterpillar should be assembled into a single whole.

The vertical arc must be equipped with a steel bushing through which the wheel axle passes. A mechanism is attached to the eye on this bushing that secures the structure of the rear fork. Track balancers are attached to the remaining ears of the all-terrain vehicle. The mover is ready to use.

As you can see, you can make a caterpillar different ways, the main thing is to have patience and desire.