Meccanica Librandi - Gielle Thrust Bearings

When coupled with the bearing, the Gielle Rotating Thrust Plates are designed to ensure an excellent hydrodinamic effect and withstand exceptional axial thrust.

The surface in contact with the thrust bearing features a defined flatness to facilitate water lubrication, and is carefully ground and polished.

Modern producion systems and rigorous quality controls allow stayng within the very strict tolerance fields of perpendicularity and parallelism that are required for the efficiency of the bearing lubricating wedge and to avoid vibrations.

Gielle rotating plates are adaptable to any kind of submersible pump shaft, are available in various diameters and can be made, on request, in any size.

The self lubricating material employed is highly innovative: a resin-based compound of aramidic fibres with graphite and self-lubricating additives, bonded with technological polymers, developed by European research.
Fully ecological, it replaces the harmful asbestos and antimony-based materials (such as antimony-impregnated graphite), nowadays strictly forbidden.
It is not subject to wear, nor is fragile as graphite.

Some features of this synthetic compound are of major importance for the bearing. These include:

• excellent self-lubrication allowing short periods of dry operation
• ability to incorporate foreign particles that would damage the Michell
• low abrasion, excellent sliding
• resistance to collisions and impacts
• excellent shock resistance, optimal for very deep wells and unstable power supply

The resin disc is firmly secured to the metal disc through a special adhesive bonding. The particular machining of the steel surface gives a high resistant adhesion to withstand also the most critical conditions.

• Technical data and compound safety sheet Download