Needle Roller Bearings — SKF NA/NK/HK Series

SKF Needle Roller Bearings in the NA, NK, and HK series offer the highest load capacity in the smallest radial cross-section of any rolling bearing type. Their long, thin rollers (length-to-diameter ratio of 3:1 to 10:1) pack maximum rolling contact area into a minimal envelope, making them indispensable where radial space is at a premium. NA-series bearings feature a machined inner ring for precision applications; NK-series are full-complement (cageless) designs for maximum load at low speeds; and HK-series drawn cup bearings integrate the outer ring into a thin, stamped shell for the most compact installation possible. These bearings are the standard in automotive transmissions, rocker arms, cam followers, printing press rollers, and textile machinery guides. SKF needle rollers feature crowned ends to prevent edge stress under misalignment. Shri Narayan Machinery LLP in Noida stocks SKF needle roller bearings for automotive, printing, and industrial applications.