NA 4904 | XIC | Machined Type With IR | NA Series

NA 4900

The NA 4900 is the smallest standard machined‑ring needle roller bearing with inner ring in the “NA 49..” series, designed for very compact, low‑cross‑section radial load applications. Its small dimensions make it suitable for precision assemblies, small motors or pumps, and wherever minimal space and light loads are involved. Despite its compact size, it retains the typical advantages of needle roller bearings: high radial load capability relative to its size, smooth rotation, and reliable performance with proper lubrication.

NA 4908

The NA 4908 is a single‑row needle roller bearing with machined rings and an inner ring, featuring flanges on the outer ring for axial guidance. Its design allows for a large number of small-diameter rollers, which gives it high radial load capacity and excellent stiffness while keeping the sectional height low — ideal for compact mechanical assemblies, gearboxes, pumps, alternators, and other industrial applications where space is limited but load demands are high. Constructed from bearing‑grade steel with a steel cage, it provides smooth, dependable rotation with good wear resistance and long service life under continuous or heavy‑duty use.