NA4911 open Needle Roller Bearing with Inner Ring

The needle bearing NA4911 has thin cylinders as rolling elements and can absorb high radial forces with its massive bearing rings. It is suitable for space-saving installation.

Features

  • it consists of a machined massive outer ring with rib, a needle roller and cage assembly and a separable inner ring
  • suitable for high radial load capacities
  • seal: open (without seal); for higher speeds than with sealed ball bearings and easy relubrication
  • can be used if the surface of the shaft is not suitable as a raceway

Technical Data

Inside Ø (mm): 55
Outside Ø (mm): 80
Width (mm): 25
Tolerance for inside-Ø (mm): 0/-0,015
Tolerance for outside-Ø (mm): 0/-0,013
Tolerance for width (mm): 0/-0,15
Seal: open
Ring Material: Rolling bearing steel
Inner Ring: yes
Rolling Element Material: Rolling bearing steel
Cage Material: Sheet Steel
Rows of Rolling Elements: single row

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