NACHI NJ311C3 Cylindrical Roller Bearings 300 Series NJ 55 x 120 x 29mm

NACHI is a Japanese precision bearing manufacturer, part of the NACHI-Fujikoshi Corporation, supplying deep groove ball bearings, cylindrical roller bearings, spherical roller bearings, angular contact ball bearings, and thrust bearings to engineering, manufacturing, and maintenance operations across Australia.

NACHI NJ series cylindrical roller bearings have one fixed rib on the inner ring, allowing limited axial displacement while carrying high radial loads in electric motors and industrial machinery.

Where this product is used

NACHI cylindrical roller bearing nj products are used across electric motors, industrial gearboxes, pumps, conveyors, and heavy engineering equipment.

• Electric motors and industrial equipment where limited axial location of the inner ring is required.
• Applications with moderate axial displacement due to thermal expansion or shaft movement.
• Heavy radial load duty where the NJ configuration provides axial guidance in one direction.

Key specifications

Selecting the right option

NJ series provides one-direction axial location — the inner ring is guided by the outer ring rib on one side. Used at the located end of a shaft; pair with an NU or N bearing at the float end. C3 clearance suits most industrial and motor applications.