BK 2526 INA - Needle Roller Bearing Closed End 25x32x26

Technical specification and application

BK 2526 INA is a closed-end needle roller bearing with dimensions 25x32x26 mm and a weight of 0.055 kg. Designed for compact mechanical assemblies, this bearing features a drawn cup outer ring and a closed end, allowing installation where the shaft does not pass completely through the bearing.

This needle roller bearing is engineered for industrial applications requiring high radial load capacity within minimal radial space. The thin-walled outer ring enables direct press-fit mounting into the housing bore, eliminating the need for a separate outer ring. The closed-end design protects the shaft end and simplifies sealing arrangements in confined assemblies such as gearboxes, actuators, transmission systems, and automation equipment.

Compared to a standard ball bearing, a needle roller bearing provides a larger contact area between rolling elements and raceway. This results in higher radial load capacity within the same external diameter. The BK 2526 can operate as part of a complete bearing unit, integrated into a housing assembly or combined with a hardened shaft or inner ring when the shaft material does not meet bearing raceway requirements.

Manufactured to strict tolerances, INA components are known for consistent running accuracy, reduced vibration, and high durability in continuous-duty environments. BK 2526 is a reliable choice for machine builders, maintenance departments, and industrial B2B customers seeking compact and robust bearing solutions.

Key technical data

• Type: closed-end needle roller bearing

• Dimensions: 25x32x26 mm

• Weight: 0.055 kg

• High radial load capacity

• Space-saving compact design

• Suitable for press-fit mounting in housing

FAQ

What does “closed-end” mean in BK 2526?
It means the bearing has a closed bottom, so the shaft does not pass through completely, protecting the shaft end and simplifying assembly.

Where is BK 2526 INA typically used?
In gearboxes, industrial drives, automation systems, and other compact mechanical assemblies.

Can BK 2526 replace a ball bearing?
For radial load applications where compact size and higher load capacity are required, it can be a suitable alternative.

Does it require a hardened shaft?
Yes. If the shaft is not hardened and ground, an inner ring should be used to provide a proper raceway surface.