Nadella combined needle bearings type RAX

Since 1930 Nadella is well known in the market place as the premier manufacturer of needle bearings. Needle bearings are one of the main components in rotating motion. Nadella is able to provide the largest breadth of needle bearing products in the industry. From small space requirements to extreme load capacity requirements, Nadella covers a full range including: needle bearings, needle bushings, bearings with cage-guided needles or full complement needle bearings, cam followers, needle or roller thrust bearings, combined bearings and precision combined bearings with adjustable axial preload.

Nadella combined needle bearings type RAX and derivatives are designed to support simultaneously both a radial and axial load. These bearings form one integral unit permitting easy storage, handling, and fitting. The operation of the thrust bearing and the needle cage independent of one another precludes any interaction harmful to precise axial and radial rotation. For these reasons it is able to support high load capacities. Combined bearings type RAX 700 possess a one-piece outer ring formed from thin sheet steel. Accurately controlled and hardened by suitable heat treatment. They are available as closed-end combined bearings and retained thrust plates. Calculations for combined bearings are carried out by taking the axial component and the radial component separately, without transforming the axial load into an equivalent radial load. Axial expansion of the shaft, for instance, will have no effect on the accuracy of the radial component.

Some common applications are; Agricultural machines, machine tools, printing machines, turbomachinery as compressors and turbines, support for borer gear box, rack and pinions systems.

Edited by Maria Brunetto
Application Engineer