NA 4901

The NA 4901 is a single‑row needle roller bearing with machined rings and an inner ring, featuring outer ring flanges for guidance. It delivers high radial load capacity while keeping a low cross‑sectional profile — well suited for compact mechanical assemblies, small gearboxes, and lightweight industrial equipment where space is constrained but load demands exist. The needle‑roller configuration gives reliable, smooth rotation and good rigidity under load, and its steel construction ensures durability and a long service life.

NA 4902

The NA 4902 is a single‑row needle roller bearing with machined rings, flanges on the outer ring, and an inner ring — designed to deliver high radial load capacity while maintaining a low cross‑sectional height, making it ideal for assemblies where radial space is limited. Its compact form factor and dense arrangement of fine rollers ensure smooth, precise rotation, high stiffness, and reliable load distribution under continuous or heavy-duty conditions. This bearing is commonly used in gearboxes, pumps, alternators, and other mechanical systems needing durable performance and efficient operation.