Paul Boughton
Schaeffler is introducing a range of deep-groove ball bearings that offer 35 per cent less friction and 50 per cent less noise than their predecessor. In addition, the new bearings benefit from more effective sealing and a riveted steel cage.
The new design improvements mean that the new 'Generation C' FAG deep-groove ball bearings can achieve higher running speeds and efficiencies, whilst simultaneously increasing the life of the bearing and reducing energy consumption.
In order to minimise friction, Schaeffler has optimised the osculation (raceway curvature) between the balls and rings on the Generation C bearings. This means there is less chance of misalignment between the inner and outer ring. As well as offering 35 per cent less friction, the bearings generate less heat, which makes them suitable for higher running speeds. The bearings are therefore suitable for applications in which low noise and smooth running are critical; for example, electric motors, power tools, ventilators and washing machines, where reduced friction and improved energy efficiency of the bearings lead to a reduction in operating costs and a more efficient machine with extended maintenance intervals. Generation C bearings can operate in temperatures from –30 up to +120 degrees C.
Schaeffler has also modified the seal on the Generation C bearings. The novel HRS seal has modified double-lip geometry and is made from nitrile butadiene rubber. Seals are adjusted to match the recess on the bearing inner ring. Axial contact between the inner ring and the seal means more effective protection against contamination or loss of grease, together with less frictional torque. This results in longer grease life, thereby increasing the life and reliability of the bearing and providing improved bearing performance at higher speeds.
Venting grooves have also been added in order to improve the run-in behaviour of the bearings. In addition to the HRS seal, the bearing shield has been modified. The recesses on the bearing rings and the shield geometry are functionally adjusted to each other in such a way that the sealing efficiency is improved and grease life is increased. The new design creates an axial and radial labyrinth with the shield.
The improved guidance of the rolling elements also contributes to higher performance of the bearing. The new riveted steel cage, which replaces the previous steel 'ribbon' cage, offers higher rigidity and so is suitable for higher running speeds. Polyamide cages are offered as an option. The riveted steel cage also reduces noise levels and means the bearing is less sensitive to shock loads. The manufacturing tolerance of the bearings has also been increased (to P5 Abec 5 standards), ball roundness to G5 tolerances and improved surface finish.
Generation C bearings are available with outside diameters from 26-90mm.
For more information, visit www.fag-generationc.de
The new design improvements mean that the new 'Generation C' FAG deep-groove ball bearings can achieve higher running speeds and efficiencies, whilst simultaneously increasing the life of the bearing and reducing energy consumption.
In order to minimise friction, Schaeffler has optimised the osculation (raceway curvature) between the balls and rings on the Generation C bearings. This means there is less chance of misalignment between the inner and outer ring. As well as offering 35 per cent less friction, the bearings generate less heat, which makes them suitable for higher running speeds. The bearings are therefore suitable for applications in which low noise and smooth running are critical; for example, electric motors, power tools, ventilators and washing machines, where reduced friction and improved energy efficiency of the bearings lead to a reduction in operating costs and a more efficient machine with extended maintenance intervals. Generation C bearings can operate in temperatures from –30 up to +120 degrees C.
Schaeffler has also modified the seal on the Generation C bearings. The novel HRS seal has modified double-lip geometry and is made from nitrile butadiene rubber. Seals are adjusted to match the recess on the bearing inner ring. Axial contact between the inner ring and the seal means more effective protection against contamination or loss of grease, together with less frictional torque. This results in longer grease life, thereby increasing the life and reliability of the bearing and providing improved bearing performance at higher speeds.
Venting grooves have also been added in order to improve the run-in behaviour of the bearings. In addition to the HRS seal, the bearing shield has been modified. The recesses on the bearing rings and the shield geometry are functionally adjusted to each other in such a way that the sealing efficiency is improved and grease life is increased. The new design creates an axial and radial labyrinth with the shield.
The improved guidance of the rolling elements also contributes to higher performance of the bearing. The new riveted steel cage, which replaces the previous steel 'ribbon' cage, offers higher rigidity and so is suitable for higher running speeds. Polyamide cages are offered as an option. The riveted steel cage also reduces noise levels and means the bearing is less sensitive to shock loads. The manufacturing tolerance of the bearings has also been increased (to P5 Abec 5 standards), ball roundness to G5 tolerances and improved surface finish.
Generation C bearings are available with outside diameters from 26-90mm.
For more information, visit www.fag-generationc.de
