Bridges UAZ military: review, description, types, features and reviews

Surely on sale you have seen cars UAZ, where car owners proudly talked about military bridges, making a markup of several thousand rubles. This topic has been discussed more than once. Some say that such cars are worthy of attention, while others, on the contrary, prefer to ride on civil bridges. What are they and what are their differences? Let's try to understand.

Varieties

UAZ vehicles use two types of mechanisms - with a single-stage main, as well as with on-board transmission. The first rear axle (UAZ) of the military is installed on cars of wagon configuration, the second - on the cargo-passenger model 3151 (in other words, "Bobik"). Leading mechanisms have a U-shaped design and are installed together with cardan shafts. However, the installation of such elements on car wagon configuration (such as "tadpole") requires significant technical improvements. This applies to the design of the suspension, traction bipod, bridges. Also, for full-fledged work, a cardan shaft shortened by a centimeter is required. As for the elements with the onboard transmission, they have differences in the middle part, namely - a smaller differential of the military bridge. UAZ with such a mechanism also differs in another way of installing the final drive gear. There are not many differences here. It is only mounted on roller conical bearings. UAZ, whose military bridge is considered more durable, has a more complex design compared to the civilian analog. There is an adjusting ring between the drive gear and the large bearing ring, as well as the spacer sleeve and gaskets. The bearings of the drive gears are clamped with the flange fixing nut.

Device

Where are the on-board transmissions located? On vehicles UAZ-469, whose military bridges are at the back, the transmission itself is located in the crankcase, where the outer parts of the casings of the semi-axles are pressed into the necks. The driving gears are mounted on the splined end of the shaft, between the roller and the ball bearing. The latter is fixed by means of a retaining ring in the crankcase. There is a special oil reflector between the ball bearing and the side gear housing. Roller mechanism is fixed in the body on two bolts. The inner ring of the bearing is fastened to the semi-axle using a retaining ring. The driven gear is attached to the flange of the side gear. The driven shaft is supported on the bushing and the bearing. By the way, the latter has a left thread. The driven shafts of the rear side gear are connected to the wheel hub using splined flanges. Carter transmission is casted together with the body of the pivot pin. The driving gear is mounted on the slot of the driven cam between the roller and ball bearings (perceive the axial loads of the hinge).

Features

For cars such as UAZ "Bukhanka", "Farmer", as well as long modifications of model 3151, civil bridges are installed (in the common people "collective farms"). However, some analogues are mounted on certain "bobics". These are the new models with the index 316, 3159 and the modification "Bars", which is distinguished by an increased track. But due to this decision the bridges (UAZ) the military here are not simple - they are elongated, reducer, with a modified "stocking".

What is the difference between the military?

First of all, such a bridge differs from a civil one by having on-board reducers. Due to this, the car's clearance is increased by 8 centimeters (that is, the gearbox is located above the standard one). The main pair has a smaller number of teeth, but they are larger. This design significantly improves reliability. The gear ratio is also different. At military bridges it makes 5,38. What does it mean? The car becomes more severe for lifting, it is easy to carry heavy loads on itself (or for itself - on a trailer). However, this mechanism is not designed for speed. The so-called "collective farm" bridges are more rapid than their military counterparts. And, of course, the differences concern the cardan shaft. If it's bridges (UAZ) the military, the length of this element is 1 centimeter shorter. Therefore, when replacing or repairing the shaft, it is necessary to specify the bridge for which it is designed. The recommended wheel size is 215 by 90 with a diameter of 15 inches.

Benefits

So, the first plus is the ground clearance. He, unlike civilian models, is 30 centimeters. "Kolkhoznye" UAZ have a ground clearance of 22 centimeters. The second plus - increased torque. This is a huge plus if you are going to carry large loads or carry a trailer. Due to the large size of the teeth, they do not wear out as often as on civilians (it concerns the main pair). Also, bridges (UAZ) military differ more even distribution of the load between the onboard and the main transmission. Well, the last thing that the owner of such bridges can boast, is the presence of a differential of increased friction. It will be recognized when driving on the roads (in fact, UAZ was intended for him). If the machine is stuck in the mud with only one side, you will not have a slippage like on civil bridges (the left wheel is moving and the right wheel is not).

Where do these bridges lose?

Now we list the shortcomings of this mechanism, because of which there are disputes between "uazovodami." The first drawback is the increased mass. Civilian bridges are lighter, and therefore fuel consumption is less. Also in their design there are fewer complicated details, so the collective farmer is more repairable. And the spare parts for the "warrior" are more difficult to find (the same reducer of the military bridge). UAZ with a civil bridge is more comfortable in driving and high-speed. Also, due to the use of spur gear in military analogs, the work of such a design is more noisy. Also, you can install a spring suspension and disc brakes on the civil ones. On military bridges (UAZ-469 including) to put all this is impossible. Strangely enough, but in maintenance more unpretentious it is civil mechanisms. Take at least oil - the military bridges the number of lubrication points is much greater.

Reviews

Some motorists, in response to the assertion that "military bridges are better than civilians" agree only by 50 percent. As for the increased clearance, these centimeters do not give much advantage. Those who need it, lift the suspension and install more "evil" wheels. As a result, the ground clearance can be increased by 1.5-2 times - it all depends on the desire and skills of the car owner. Also, drivers complain of increased noise. Still, army bridges make themselves felt even if the car is used for civilian purposes. And sometimes, to get to the destination (hunting or fishing), it takes several hours to listen to this "melody". This is especially noticeable on the asphalt surface. For many, consumption and dynamics are important - with military bridges you can simply forget about these two factors. Reviews of car owners say that the car hardly gets faster than 60 kilometers per hour, while fuel consumption is increased by 10-15 percent. As for the service, the reviews point out the problem of oil leakage. It starts at the side reducers. Therefore, advice for those who are going to take UAZ: immediately make a change of oil. No one ever thought about this seemingly simple operation. People buy this car and do not even think that periodically it is necessary to change the oil in the engine and gearbox, not to mention the bridges. Of course, this is a military machine and it is very difficult to "kill" it, but if you ride for 10 years in the same oil in the gearbox, the machine is unlikely to thank you. As for patency, the reviews mark the special design of military bridges. They are made in the form of a ski. Therefore, to get stuck on military bridges, you need to try hard. And on the resource they are more durable, due to the use of other teeth.

Also, reviews note the absence of locks. Do not put disc brakes on the UAZ-469. Military bridges do not "digest" them. But, along with this, it is possible to install wheels more than 30 inches. If civil bridges are used, it is necessary to strengthen the hinges of equal angular velocities, semiaxes and the main pair.

On the problem of consumption and not just the eyes of car owners

With regard to noise: judging by the reviews, this is a very subjective opinion. Someone scolds the military bridges for the noise, and for someone it does not matter - "how they rustled before, and now". Regarding fuel consumption - with a correctly adjusted intake system, such UAZ will consume a maximum of 1.5 liters more than its civilian colleague. In addition, some car owners note the lack of spare parts, as military bridges do not produce for several decades. If you can find something, then only on the dismantling, and not the fact that the found will be in good condition. On the other hand, the bridge is not a "consumable", like a filter, rubber and oil. And to buy gears and other spare parts to it it is necessary far not every day.

Off-road elements

If you have an off-priority in priority, it's definitely better to put a military bridge. But if you often drive on a normal asphalt surface, for such purposes, unequivocally choose civilians. It's not in vain for all police "bobiki" put "collective farm" bridges. In the city, priority is given to comfort and dynamics.

Conclusion

Thus, the type of bridge is determined by the further designation of the machine - it will go just for hunting and fishing or prepared for a full offroad. But it is worth noting that even a civilian UAZ with a "stock" rubber is able to get through the ford. But on everyday use this possibility is not worth it: even on the civil bridges there are "military echoes" - frame construction, rigid spring suspension.

So, we found out how bridges are built (UAZ) by the military, what are their advantages and disadvantages in comparison with civil ones. As you can see, it is necessary to know from the beginning, for what purposes it will be used.