Needle Roller Bearings

K Series (Drawn Cup Needle Roller)

Drawn cup needle roller bearings with thin steel outer shell. Compact radial bearing solution for automotive transmissions and power tools.

RNA / NK Series (Without Inner Ring)

Needle roller bearings without inner ring for hardened shafts. Space-saving design where shaft surface serves as inner raceway.

NA / NKI Series (With Inner Ring)

Needle roller bearings with machined inner ring. Ready-to-mount units for applications without hardened shaft surfaces.

HK / BK Series (Drawn Cup with Cage)

Drawn cup needle roller bearings with steel cage and open ends. High-speed capability for motorcycle engines and compressor connecting rods.

RNA48 / NA48 Series (Solid Machined)

Solid machined needle roller bearings with ground outer ring. High precision and rigidity for industrial robots and machine tools.