Mono tube shock
absorber or monotube shock regulates the flow of the oil between the
compression and compensation chambers by using mechanically fixed base
valve. The shock also utilizes compressible bladder in the compensation
chamber for allowing volume compensation. The use of base valve and the
compressible bladder together eliminate the need for pressurized gas and a
floating piston which were the important features of the traditional
monotube dampers.
How It Works
In mono tube design, the damping force is created by deflective discs which
are heat treated stainless spring steel. The discs are generally stacked in
a pyramid pattern. The shim with the largest diameter faces the piston. The
disc which is in close proximity to piston open first and allows the flow of
the oil. The rate of the shock both on compression and rebound can be
changed by increasing thickness and sometimes diameters.

Monotube shock absorber consists of two chambers which are stacked on each
other and are separated by a "floating piston". Both the piston
are filled with oil and gas respectively. In the oil filled chamber damping
forces are created. The gas chamber is separated by a floating piston. The
compression of shock results in the compression of the air chamber by the
floating piston which displaces the volume of the shaft. This type of
pressure creates the rod-pressure.
The pushing of piston rod also forces the floating piston towards downwards
thereby increasing pressure in both gas and oil section. This also results
in the flow of the oil through the piston. This type of resistance generates
the bump damping.
Rebound damping is produced when the oil between piston and guide is forced
to flow through the piston. This happens when the piston is pulled out
Benefits
- Gives good control and smooth ride.
- Monotube Shocks Can be mounted at any angle.
- It is lighter as compared to equivalent twin tube designs.
- Has high severity life.
- Adjusts to road conditions automatically.
Features
The features of the mono tube shock absorber include:
- It has distinctive mono disc design.
- The vehicle can be assembled easily.
- Weight is light.
- Element of lag and fade is absent.
- Reliable and durable.
- It also comes in controlled ride application.