Sespel axle unit

Sespel is the leader in the production of semi-trailers for any purpose in Russia and CIS countries. Sespel products are distinguished for their high quality, reliability and focus on the needs of the market, which allows the plant to be on a leading position in the global market.

In 2018 the company expanded its production by introducing lightweight axles for the entire line of Sespel trailers and semi-trailers designed to solve a wide range of tasks. The axles are a concept of carefully assembled high-quality components. Axle, bearings, brakes and brake discs, shock absorbers and air springs are not only made with the highest quality, but also perfectly match each other and brilliantly cope with the task.

Technical characteristics

Basic parameters	Values
Length, mm	2280
Width, mm	1210
Axle weight, kg	500 ± 2%
Maximum permissible static load on the axle, kg	9000
Number of wheel on the axle, pcs.	2
Wheel track, mm	2040
Tyre size	385/65
Wheel type	R 22.5
Brake drums diameter, mm	420

Reliable SESPEL Axles

Inside the brake drum on the brake calipers there are brake shoes on which the pads are fastened with rivets. A brake camshaft passes through a hole in the brake caliper, at the other end of which a worm-type adjusting lever is installed, which is connected to the brake cylinder rod.

Compact high strength axle beam

A reliable compact axle beam is a high-alloy steel circular pipe with welded wheel ends. The axle beam design combines a trailing arm, an axle tube, a brake caliper flange and a wheel end, which together make up a perfect device. The uniform distribution of forces in high-loaded areas of the structure ensures its long service life.

Wheel end

The forged wheel end is an important element of the axle structure, which is attached to the axle beam by friction welding. It is in direct contact with the cassette-type bearings and takes up the entire load from them. The wheel end has high strength characteristics, increased wear resistance and is not subject to corrosion.
Cassette-type bearing

It is a double-row tapered bearing, adjusted by gaps, lubricated and sealed to prevent penetration of water, dust and dirt inside the bearing. Maintenance is not required through the use of advanced technologies.
Hub

The reliable hub design for mounting wheels with 22.5 inches radius. The hub is fixed with a bearing nut, locking washer, retaining washer and locking nut. The brake drum is attached to the hub with the help of studs, which at the same time serve as wheel disсs fastening.
Brake chamber

A bracket for brake chamber installation is welded on the axle beam. It is intended for actuation of the brake mechanism (brake drum).

Brake drum and braking mechanism made of wear-resistance alloys

Sespel axles are the optimal solution for trailers with the load up to 9 tons per axle and a wide range of ground clearance. It is suitable for driving on and off-road and is compatible with the wheel type R 22.5. The axles are manufactured in climatic version “У”, according to customer requirements they can be made in “ХЛ” and “T” versions, which must be stipulated by the consumer in the supply agreement.

The axle units are manufactured in compliance with design requirements TU 29.32.30- 054-05444977-2017, design documentation approved in accordance with the established procedure TR TS 018/2011, GOST 14650-6б this ensures reliability and safety while using Sespel axles.

Semi-spring

A semi-spring is a welded structure that forms a solid one-piece connection and serves to connect a stabilizing shock absorber and an axle beam. Also, on the semi-spring there installed: a bracket, an air bag and a bushing (silentblock).

Shock absorber

The stabilizing shock absorber undertakes function of stabilizing and damping while driving straight and turning, suppresses high-frequency vibration. Built-in springs guarantee stable straight movement. When turning, the built-in springs of the shock absorber compensate the lateral force and ensure shock-free movement when the wheels return to the “strictly straight” position.

Suspension bracket

A bracket is a welded structure and it serves as a connecting link between the vehicle frame and semi-spring.
Air bag

The air bag is the main elastic element of the air suspension. The role of an elastic body performs compressed air. The air bag cover consists of several layers of rubberized fabric (carcass), an outer protective and internal sealing. The airbag is designed to suppress high-frequency vibration and ensure stable straight movement.
ABS sensor

The axle structure provides a system for preserving the vehicle stability and steerability (ABS).

Our customers appreciate us

Most of our customers choose Sespel chassis of our own production. First of all, this is due to the fact that we are responsible for the entire semi-trailer, and we guarantee proper and reliable operation of all its parts, assemblies and mechanisms. And a wide network of service centers located throughout Russia and the CIS countries provides fast maintenance service of Sespel vehicles.