low friction bearings
SANBURG BEARINGS----LOW FRICTION BEARINGS
Energy efficient E2 double-row angular contact ball bearings reduce frictiona moment by 30% and can run between 5 ºC and 30 ºC cooler, increasing the service life of the grease, says lubrication, bearing and tribology specialist company SKF South Africa.
The double-row angular contact ball bearings are in addition to the company’s energy efficient range of deep-groove ball bearings and taper roller bearings.
“The E2 bearings have improved internal geometry, are filled with a low-friction grease and capped with shields made of sheet steel and, depending on operating conditions, can reduce frictional moment by between 30% and 50%, compared with SKF’s standard bearings, as determined by SKF laboratory tests,” the company states.
Further, owing to the reduced friction, the bearing can run between 5 ºC and 30 ºC cooler, which will significantly increase the service life of the grease and reduce the energy consumed by friction.
“The carrying capacity and life of bearings are still important, but many industrial applications need energy efficient bearing solutions to meet growing environmental requirements and energy saving potentials,” the company says.
The E2 bearings are interchangeable with SKF basic design bearings and enable the easy upgrade of existing applications, as well as use in new designs. This helps end-users to save energy and costs. Further, they help original- equipment manufacturers to design new, energy efficient consumer products.
A range of sizes of energy efficient bearings is available in the 32 A and 33 A series, as well as the existing SKF Explorer assortment. The range will be extended on customer demand.
Dry-Lubricated Bearings for Steel Mills
Meanwhile, the company launched its DryLube Bearing, which is a new bearing solution that contains a specially engineered graphite-based mixture, which provides very low and constant friction, capable of lubricating at temperatures of up to 350 °C, and eliminating the need for grease relubrication in hostile steel- making environments.
By moving away from grease lubrication, DryLube Bearings can help mills avoid the associated operating costs and productivity limitations that can occur when grease-lubricated bearings are exposed to high temperatures. Heat causes grease to deteriorate quickly, leaving bearings without adequate lubrication. This can lead to failures, unplanned downtime, product surface defects, lost productivity and maintenance.
