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Needle bearings

Nadella

Article: 00091632

Roller bearing / needle / radial / with cage

Radial needle roller and cage assemblies have a steel
cage that provides both inward and outward retention
for the needle rollers. The designs provide maximum
cage strength consistent with the inherent high load-
ratings of needle roller bearings.
Accurate guidance of the needle rollers by the cage
bars allows for operation at high speeds. Needle roller
and cage assemblies have either one or two rows of
needle rollers.
Also listed are needle roller and cage assemblies using
molded, one-piece glass-reinforced engineered polymer
cages (suffix TN). These operate well at temperatures up
to 120° C over extended periods. However, care should
be exercised when these assemblies are lubricated with
oils containing additives as service life may be reduced
if the operating temperature exceeds 100° C. At such
high temperatures oil can deteriorate with time and it is
suggested that oil change intervals are observed.
Needle rollers with relieved ends used in these
assemblies are made of high-carbon chrome steel,
through-hardened, ground and lapped to close
tolerances for diameter and roundness.
Reference standards are:
ISO 3030 - needle roller bearings - radial needle roller
and cage assemblies - boundary dimensions and
tolerances.
DIN 5405 Section 1 - rolling bearings - needle roller
bearings - radial needle roller and cage assemblies.
ANSI/ABMA 18.1- needle roller bearings - radial,
metric design.

Specifications

  • Rolling element: roller, needle
  • Geometry: radial
  • Other characteristics: with cage

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