Axial ball bearings reduce household energy consumption by 5%

Schaeffler Technologies (www.schaeffler.com) has developed new roller bearings that will help household appliances reduce its energy consumption by as much as five percent. These energy efficient bearings improve the compressor’s overall energy efficiency rating by one class.

Specifically designed to match eccentric shaft bearings within refrigeration compressors, the new FAG axial ball bearings replaces the plain bearings that are usually utilized in these mounting positions.

The company offers a selection of four kinds of FAG axial bearings which customers can freely combine. Its bearing cages come in either sheet plastic or steel, matched to the current operating environment. Both of its bearing washers can be supplied with or even without raceways. The materials of the axial bearings are resistant to varying temperatures and offer excellent compatibility with coolants.

FAG axial bearings’ sheet steel cage features a unique “filigree” or a twisted wire design provides high rigidity, making it more ideal than plastic cages for the bearing’s high temperatures. Moreover, it eliminates the need for coolant compatibility tests.

The axial washers’ raceways improve ball rotation and load distribution as well as provide secure guidance for the ball. Aside from a reduced wear, these remarkable characteristics also result in a longer operating life. To provide more mounting security, the company also offers bearings that feature raceways on both sides.

NKE Double Row Full Complement Cylindrical Roller Bearings

Steyr, Austria — Bearing manufacturer NKE AUSTRIA GmbH introduces the NNF series of double row full complement cylindrical roller bearings. This series of bearings features a compact design and maximum load carrying capacity. The bearings are sealed on both sides and suitable for extreme operating conditions. Typical applications for NNF bearings are rope wheels and pulleys.

NKE double row full complement cylindrical roller bearings with maximum load carrying capacity

The maximum radial load carrying capacity of the NNF series cylindrical roller bearings is accomplished through the full complement design, i.e. a maximum number of rollers is fitted within the available cross-section. They are suitable for low to medium speeds and can take up axial forces and tilting moments in both directions. To prevent dust and splash water from entering the bearings, the NNF series is equipped with contacting seals on both sides. A special grease allows the bearings to operate under extreme conditions. Lubrication holes in the outer and inner ring enable easy re-lubrication through shaft and housing.

An application example for double row full complement cylindrical roller bearings: Cable sheave for lifting blocks by Dutch company De Haan Special Equipment B.V.

Rope wheels and pulleys are typical application examples for NNF series double row full complement cylindrical roller bearings. Due to the narrower outer ring, additional sleeves or distance pieces are not required. Two snap ring grooves on the outer ring simplify the bearing arrangement design for sheaves. For better corrosion protection, the bearings are also available with a special, RoHS compliant anti-corrosion coating SQ171. Black oxide coating can also be realised to optimise the tribological characteristics of the bearings. Furthermore, the bearings can be manufactured in application specific clearance and tolerance classes.

NKE AUSTRIA
www.nke.at