SL 122012 NADELLA 12x20x12 Needle Roller Bearing

Industrial Applications

Design Advantages

Technical Characteristics

Main description

SL 122012 NADELLA 12x20x12 is a precision needle roller bearing without an inner ring, designed for applications where compact dimensions, high radial load capacity, and space optimization are critical. The absence of an inner ring allows the bearing to operate directly on a hardened and ground shaft, reducing the overall diameter of the bearing arrangement.

This needle roller bearing is widely used in industrial applications such as gearboxes, drive systems, automation equipment, packaging machines, and compact mechanical assemblies. Thanks to the needle roller design, the bearing can transmit high radial loads while maintaining a very small cross-section height, making it ideal for limited installation spaces.

The SL 122012 bearing is intended for mounting in a bearing housing, with the shaft acting as the inner raceway. This solution enables cost reduction and structural simplification while maintaining high durability, stable operation, and long service life under continuous operation.

Due to its precision and reliability, this bearing is commonly selected by machine manufacturers, maintenance departments, and B2B technical distributors who require consistent quality, repeatable performance, and fast availability.

FAQ - frequently asked questions

Does this bearing include an inner ring?
No, the SL 122012 operates without an inner ring.

What shaft requirements are necessary?
The shaft must be hardened and ground to function as the inner raceway.

What type of loads does it support?
It is designed for radial loads.

Where are needle roller bearings without inner rings used?
In compact gear systems, drive mechanisms, and industrial machinery.

Is it suitable for continuous operation?
Yes, when correctly mounted and properly lubricated.