NA 6905R NTN 25x42x30 - needle roller bearing

Robust needle bearing for high radial loads

Compact design for demanding industrial applications

The NA 6905R NTN needle roller bearing with dimensions 25x42x30 mm is engineered to provide high radial load capacity in applications where space is limited. Its needle-roller configuration ensures a large contact area while maintaining a slim profile — making it an excellent choice for gearboxes, transmissions, compact drives, and bearing housings in industrial equipment.

Durable performance and long service life

• High radial load capacity in compact form — the densely packed needle rollers distribute load evenly, enabling the bearing to handle demanding radial stresses without excessive size or weight.

• Reliable operation under continuous load — precision manufacturing and hardened rollers provide wear resistance and stable performance even in harsh industrial environments with heavy duty cycles.

• Space-saving installation — minimal cross-sectional dimensions allow integration into tight mechanical layouts and compact bearing housings, reducing the need for complex redesigns.

• Versatile industrial applications — ideal for agricultural machinery, small drives, conveyors, gear units, power transmission systems, and compact mechanical assemblies where efficient radial support is required.

Specifications & Typical Use Cases

• Type: needle roller bearing, series NA 6905R, manufacturer NTN

• Dimensions: 25 mm (shaft diameter) x 42 mm (outer diameter) x 30 mm (width)

• Load orientation: radial loads (not designed for axial load capacity)

• Construction: needle rollers in cage — optimized for radial load bearing and minimal radial space usage

• Applications: gearboxes, compact drives, conveyors, agricultural machines, industrial drives, bearing housings, mechanical assemblies requiring high radial load support and small installation space

• Key traits: high load tolerance, compact form factor, stable shaft support, wear resistance, long operating life

This needle bearing combines compact dimensions with high load-bearing performance, making it a practical and efficient choice for industrial clients seeking reliable, easy-to-integrate bearing solutions.

FAQ

What load types can NA 6905R NTN handle?
It is optimized for radial loads. This bearing is not intended to support axial loads — focus is on radial load capacity and compactness.

Where is this bearing commonly used?
It is used in compact gearboxes, small drives, conveyors, agricultural equipment, industrial transmissions and mechanical assemblies requiring high radial load support in limited space.

What are the exact dimensions of this bearing?
The bearing fits a 25 mm shaft, with an outer diameter of 42 mm and a width of 30 mm.

Is it suitable for heavy-duty or continuous operation?
Yes — the needle-roller design and high-quality materials ensure wear resistance, smooth rotation and long service life under heavy radial load cycles.

Does its compact size compromise load capacity?
No — despite the small dimensions, the needle roller layout allows the bearing to sustain substantial radial loads due to the large contact area of many rollers.