Sans inscription -20%
Sans inscription -20%
OUR SERVICES
14 days to
14 days to
to change your mind
Special awards for
Special awards for
professionals
D-day dispatch (24/48H)
D-day dispatch (24/48H)
if I order before 12 noon
A large and comprehensive stock
A large and comprehensive stock
more than 25,000 references

What are hydraulic counter-bearings used for?

In a hydraulic circuit, every part, no matter how small, is important. When a malfunction occurs, a breakdown or a slowdown, it is important to be able to identify the source of the problem in order to find a solution. Each part plays a role and must be replaced if necessary to ensure that the whole system continues to operate correctly. Today, we're taking a closer look at hydraulic counter-bearings. What is the purpose of hydraulic counter-bearings? That's what we're going to find out together in this article.

EACH PART HAS ITS PLACE: THE ROLE OF HYDRAULIC BACKING BEARINGS

The hydraulic pump is one of the driving forces behind a hydraulic circuit. It transforms the energy in the circuit by pumping the fluid and injecting it into the circuit in the form of a flow. There are several types of pump: external gear pumps, internal gear pumps, piston pumps and screw pumps. Each has its own particular characteristics. They produce flow in the circuit, allowing the fluid to circulate under pressure. It is then the hydraulic motor that transforms this hydraulic energy into mechanical energy, by converting it into rotary motion, which in turn drives another device.

Hydraulic counter-bearings

Hydraulic counter-bearings for belt tensioning are used close to the hydraulic pump. They may have a tapered or cylindrical drive shaft. They are generally used for independent belt or chain hydraulic pump transmissions where high radial loads are present. They are highly stressed in the circuit and have a service life of 3500 hours (approximately) at 1500 rpm. To ensure that they work properly, and that the pump operates correctly, it is strongly recommended that these parts are serviced regularly. How should this be done? By using grease lubrication to DIN 51502 standards. Since they help to tension the pump belt, they are subject to a great deal of stress. What's more, they rotate very quickly, so the lubricant needs to smooth out this rotation without damaging the parts.

What does a hydraulic counter-bearing part look like?

Hydraulic counter-bearings take the form of a rectangular part with a central axis of rotation that drives the belt, which in turn activates the hydraulic pump.

What is radial load?

The uneven distribution of pressure around the sprockets creates a very high radial load. The radial load represents the forces perpendicular to the axis of rotation, i.e. oriented along the radii of the cylinders. This creates a serious problem for shaft guidance and means that the maximum operating pressure in the circuit has to be limited.

The importance of maintenance

As we have already mentioned, the parts in a hydraulic circuit, and more particularly those that help to drive the hydraulic pump, are the most heavily used parts in the circuit. This means that they are also the most susceptible to damage. They must therefore be constantly looked after and be the subject of daily monitoring and regular maintenance. To ensure that this is done properly, it's best to call in professionals who can identify the source of the problem in the event of a breakdown.

All our tips and news