NTN

NTN NA4905R Machined-Ring Needle Roller Bearing With Oil Hole, 25 mm Dia Bore, 42 mm OD, 1 Row, 17 mm W, 31500 N Load

NA4905R-NTN MFG #: NA4905R
$56.63 / EA
Non-Stock Item
NTN NA4905R Machined-Ring Needle Roller Bearing With Oil Hole, 25 mm Dia Bore, 42 mm OD, 1 Row, 17 mm W, 31500 N Load
  • Bearing Material: High Carbon Chrome Steel
  • Bore Diameter: 25 mm
  • Cage Material: Steel
  • Closure Type: Open
  • Country of Origin: JP
  • Load Capacity: 31500 N
  • Manufacturer Name: NTN
  • Maximum Speed: 8500 rpm Grease/13000 rpm Oil
  • Number of Rows: 1
  • Outside Diameter: 42 mm
  • Series: NA49
  • Temperature Rating: -40 to 120 deg C
  • Type: Machined-Ring
  • Width: 17 mm
The machined ring of this bearing type contains needle rollers and a cage. The outer ring and the needle rollers are inseparable from each other by means of double-side ribs on the outer ring or side plates. Because of its machined (solid) outer ring enabling to make it more rigid and upgrade the bearing accuracy, this Machined Ring Needle Roller Bearings bearing type is suitable for an application requiring high speed, high load and high running accuracy. These machined ring needle roller bearings are available in two types one without inner ring and another with inner ring considering the case of using a shaft as the direct raceway surface without using inner ring.
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  • Standards
  • Application
  • Includes
  • Item Features
AAIA|ABMA|AEM|BSA|PTDA|RBEC 1
Construction, Wind Energy, Metals Manufacturing, Mining, Food and Beverage, Precision and Machine Tools, Paper and Forestry, Oil and Gas, Agriculture and Electric Motors
Inner Ring
  • Greater load-bearing capacity in a more compact design
  • Low inertial force and high rigidity
  • Needle roller bearings are suitable for applications with oscillatory movement
  • High permissible speeds
  • ISO class 0 tolerance rating
  • CN radial clearance
  • 24000 N dynamic/31500 N static