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cylindrical roller bearing / needle / radial / single-row
KZW,FCB,RAX series



  • Rolling element:

    cylindrical roller, needle

  • Configuration:

    radial, single-row

  • Material:


  • Other characteristics:

    with cage, precision, combined, small

  • Applications:


  • Inside diameter:

    Max.: 110 mm (4.331 in)

    Min.: 4 mm (0.157 in)

  • Outside diameter:

    Max.: 130 mm (5.118 in)

    Min.: 7 mm (0.276 in)

  • Width:

    Max.: 40 mm (1.575 in)

    Min.: 7 mm (0.276 in)



Needle bearings are a standard element of a rotational motion system. Needle bearings are used in applications where high load capacity, high precision and small overall dimensions are required. Nadella offers a big range of needle bearings. The strength of Nadella’s production consists also in the ability of producing special items at a reasonable price. Every bearing contains the long experience acquired from Nadella through decades of design, production and application.

Needle bushes, full complement retained or with cage
Needle cages
Bearings with cage guided needles
Full complement needle bearings
Needle rollers - Rollers and cam followers
Thrust bearings with needles and with rollers
Combined bearings with needles (RAX)
Precision combined bearings with adjustable preload
Sealing rings


In many respects, construction is similar to that of needle bushes. The well-established design utilizes the same low-profile radial section as needle bushes. The precisely formed interior ramps provide surfaces against which the needle rollers wedge. These positively lock the clutch with the shaft when rotated in the proper direction. These ramps, formed during the operation of drawing the cup, are case hardened for wear resistance.