NA 6904 | XIC | Machined Type With IR | NA Series

NA 4906

The NA 4906 is a single‑row needle roller bearing with machined rings and an inner ring, featuring flanges on the outer ring. Thanks to its dense set of fine needle rollers, it can support high radial loads while maintaining a low cross‑sectional height — ideal for compact mechanical assemblies such as gearboxes, pumps, electric motors, and other industrial machinery where space is limited but load demands are high. Its solid outer ring and steel cage construction provide durability, smooth rotation, and good resistance to wear under continuous or heavy‑duty operation.

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.