NefAZ-5299 buses: description, specifications, modifications

The NefAZ-5299 bus is one of the most popular types of municipal transport in Russia. A new-age person born in the Neftekamsk Automobile Plant, for his short life, he has sold more than ten thousand copies in the car parks of the whole large country.

Description of the bus

Indicative for assessing the reliability and performance characteristics of the NefAZ-5299 bus is that it is based on the chassis of the truck-proven KAMAZ-5297, which has been time-tested, expensive and off-road. Wheels are tubeless, with steel disks, all-metal body with ribs of stiffness from a square tube, dual-circuit pneumatic braking system, control and control equipment that meets international standards, power steering - nothing new, but solid and safe.

In the standard version, an anti-lock braking system is installed on the bus.

The driver's cabin is separated from the passenger compartment by a glass partition, which protects from noise, and is equipped with a loudspeaker. The set of adjustments and the suspension of the driver's seat are not as modern as we would like, but they make it possible to get behind the wheel quite conveniently.

Entrance doors are opened from the cabin by pneumatic mechanisms.

Ventilation is natural, through the hatches in the roof (there are three in the city bus) and the side windows.

Heat from an autonomous liquid or gas heater, which is also a pre-engine heater of the engine, is distributed uniformly throughout the cabin, because the system elements are located along the perimeter of the bus.

The number of seats and the total capacity of the cabin depend on the modification of the NefAZ-5299 bus.

Technical characteristics of the bus

The overall dimensions of the base model are 11700 × 2500 × 3100 mm. The wheelbase is 5840 mm. The equipped weight of the bus is more than ten, and the full weight is eighteen tons. The load is distributed unevenly across the axes: 6.5 tons to the front and 11.5 tons to the rear.

The ground clearance is 285 mm, the minimum turning radius is 12 meters.

The maximum speed of the urban base bus with a diesel engine is 74 km / h. Suburban speeds up to 96 km / h, and speed above this on most Russian roads and is not required.

Engines for buses

At NefAZ-5299, several types of engines are installed, operating on different types of fuel.

The diesel engine is powered by a Cummins 6ISBe270B engine with a capacity of 270 liters. from. And a volume of 6.7 liters. The six-cylinder engine is turbocharged. The fuel consumption is 24 liters per 100 kilometers, the volume of the fuel tank is 250 liters. The diesel engine complies with the norms of ecological standards EURO-3. The transmission can be either a mechanical or a four-speed automatic.

Modifications that operate on natural gas meet the higher environmental standards of EURO-4 and EURO-5.

On liquefied gas, an eight-cylinder KamAZ-820.61-260 engine with a capacity of 260 liters operates. from. The volume of 11.76 liters with a turbo.

The six-cylinder Mercedes-Benz M 906 LAG / EEV / 1 is slightly more powerful - 280 liters. from. With a smaller volume of 6.9 thousand liters.

Engine Yuchai YC6G260N-50 with six cylinders of 7.8 liters gives a maximum power of 247 liters. from.

The volume of the gas-column system of eight tanks is 984 liters. Cylinders for liquefied gas are located on the roof of NefAZ-5299 bus (photo is shown below).

On urban machines, a four-speed automatic is installed, and on suburban - a five-speed with four synchronizers, the manual gearbox.

Modifications of the bus

About the popularity of the NefAZ-5299 bus says a large number of modifications: from the beginning of release they were forty-two.

The basic model is designed for the transport of passengers in the city. The total capacity is 105 people, there can be seats for 25. There are three wide doors on this bus, the engine can be either diesel or gas powered, almost all versions have an automatic transmission.

In addition to the fact that most modifications of the city bus are low-floor, they are also equipped with a forced tilt system.

Suburban modifications have a smaller capacity - 89 people, but they are equipped with more comfortable tourist seats, adapted for long trips.

The long-distance NefAZ-5299 with one door has 43 seats and is equipped with luggage compartments. Comfortable car seats with reclining backrests and armrests, air conditioning and radio make long trips not so tedious. A modification for intercity traffic in the north is being produced separately. On it are installed additional heaters of salon and storage batteries, electric fuel pre-heating, fuel heating tank before start-up.

If the suburban modifications are all medium-sized, the city buses are also made in semi-low-floor and low-floor versions with ramps for passengers with disabilities and a special place in the center of the wheelchair compartment .

Maintenance and repair of the bus

Most units and aggregates of the NefAZ-5299 model are tested on serial trucks, it is well-known to specialists, therefore, repairs and maintenance of the problems do not cause problems.

A high degree of unification not only reduced the cost of assembling buses, but also simplified and reduced the cost of repairs. Buy spare parts can be from official dealers KamAZ, and their network is quite extensive.

A trip in the suburban bus

Suburban NefAZ-5299 is designed for 45 seats, and almost the same number of passengers can stand. It has two doors located in opposite parts of the body, which makes the passage uncomfortably long. And if you consider that the seats with armrests are wide enough, the passage can also be considered narrow, where two passengers, especially in warm clothes, find it difficult to miss each other.

In addition, in the suburban buses people usually travel with shopping bags, which in the model of NefAZ-5299 simply can not be put. The seats are close, the legs would be placed, and the shelves above the heads are narrow. The luggage compartment in the bus is provided, but the practical benefit from it is very doubtful. It can be used by passengers traveling from beginning to end of the route, at intermediate stops the driver does not go out to open and close the lid again.

What is convenient for passengers is the large doorways, which are well lit in the dark, and low-lying steps - modifications of suburban buses are all medium-sized.

The characteristics of the NefAZ-5299 bus make it very popular throughout the Russian Federation.

Thoughtful design, equipment for disabled people on many modifications, air conditioners are comfortable for passengers, good visibility, modern electronics and comfortably comfortable seats - these are the advantages for drivers.