PNA 20/42 INA 20x42x20 mm Needle Roller Bearing

High-performance bearing for demanding industrial applications

The PNA 20/42 INA 20x42x20 mm is a precision needle roller bearing with an inner ring, engineered for applications requiring high radial load capacity in compact installation spaces. This bearing provides excellent stability, smooth rotation and reliable performance under continuous and dynamic operating conditions. It is widely used in professional machinery where durability and performance are critical.

Designed for shafts of 20 mm diameter and housings 42 mm in diameter with a width of 20 mm, the bearing is suitable for various power transmission and motion control systems, including heavy-duty industrial equipment.

Key Advantages

Robust construction and industrial-grade durability

• High load capacity - ideal for installations with increased radial forces where standard ball bearings are insufficient.

• Enhanced operational stability under misalignment - compensates for shaft deviations and mounting inaccuracies.

• Long service life and wear resistance - hardened rolling elements ensure excellent performance in continuous work cycles.

• Versatile industrial applications - suitable for heavy machinery, conveyors, conveyors, agricultural and construction equipment, gearboxes, pumps and automation systems.

• Easy assembly and replacement - compatible with standard bearing housings and industrial unit constructions.

Product Description

The PNA 20/42 INA 20x42x20 mm needle roller bearing is engineered for applications requiring maximum reliability, long life and compact design. With a high radial load rating and precision guidance of needle rollers, the bearing ensures minimal friction and stable shaft rotation even under vibration and heavy loads.

Thanks to its self-aligning capability, the bearing tolerates slight shaft misalignments, enabling secure operation in high-demand industrial environments. Its robust internal geometry and high-grade materials reduce maintenance requirements and extend service intervals, supporting efficient production processes and reduced machine downtime.

This bearing is widely used in industry sectors such as mechanical engineering, agricultural machinery, manufacturing automation, conveyor systems, pumps, compressors, reducers and transport machinery.

If you need a professional, durable and efficient needle roller bearing for demanding technical systems, the INA PNA 20/42 is a proven solution for high-reliability equipment.

FAQ - Common Questions

What type of loads can the PNA 20/42 handle?
It is designed primarily for heavy radial loads, even under continuous operation.

Does it compensate shaft misalignment?
Yes, the bearing construction allows compensation of minor shaft deviations.

What industrial sectors commonly use this model?
Automation, transport systems, agriculture, gearboxes, pumps and construction machinery.

Is maintenance complicated?
No—thanks to durable materials and precision design, it requires minimal servicing.

Is installation straightforward?
Yes, standard dimensions ensure quick integration into common bearing housings.