Koyo/JTEKT NUP311 Cylindrical Roller Bearing 55 x 120 x 29mm

Koyo is a Japanese precision bearing brand, part of the JTEKT Corporation, supplying deep groove ball bearings, tapered roller bearings, needle roller bearings, and related components to automotive, engineering, manufacturing, and maintenance operations across Australia.

Koyo cylindrical roller bearings carry heavy radial loads at moderate to high speeds in precision industrial applications.

Where this product is used

Koyo cylindrical roller bearings are used in a variety of industrial and commercial environments where reliable bearing performance is essential.

• High-speed machine tool spindles requiring high radial stiffness.
• Industrial gearboxes, rolling mills, and paper machinery.
• Electric motor and pump shaft support with heavy radial loads.

Key specifications

Refer to the product title and part number for dimensions and configuration details.

Selecting the right option

Match the bore, outer diameter, and width to shaft and housing specifications. Select NU (free inner), NJ (inner with one rib), or NF (flanged inner) based on the axial location requirement. Confirm speed and load ratings against the application duty cycle.