Bearing integration allows:
an improvement in the rotational and guidance precision;
a reduction of dispersion;
an improvement of repetitiveness (preload and torque);
an improvement of stiffness factors depending on the design chosen;
a reduction of rejects.
a reduction in the number of components;
a reduction in dimensions and mass;
an adjusted and applied hard preload;
an increase in capacities and stiffness;
an ease of assembly ("cartridge type" bearing);
an increased reliability of integration in the system.
Super duplex bearings, with an integrated hard preload, offer improved overall performance for rotating systems. Its rotational precision is achieved thanks to its double-groove outer ring design, which limits the geometrical defects and reduces torque.
There is a standard ADR series known as KADV. These bearings are available in back-to-back configuration with centred inner rings allowing a very high load-bearing capacity and increasing angular stiffness.
Its hard preload applied with screws makes it possible to guarantee the repetitiveness of this parameter from one bearing to another and a provides complete control over the desired stiffness performance.
The preload value will be determined by the loads placed on the bearing.