Nachi

NU321 Nachi Bearings 105x225x49 Steel Cage Japan Large Bearings

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$547.88
SKU: Kit10443
Item: NU321 Roller Bearing
Type: Nachi Cylindrical Roller Bearing
Cage: Steel Cage
Dimensions: 105mm x 225mm x 49mm/Metric
ID (inner diameter)/Bore: 105mm
NU321 Nachi Cylindrical Roller Bearing
Steel Cage
105mm x 225mm x 49mm
Made in Japan


NU321 Nachi Cylindrical Roller Bearings, Steel Cage, Made in Japan, the NU321 inner diameter is 105mm, the NU321 outer diameter is 225mm, NU321 width is 49mm.

  • Item: NU321 Roller Bearing
  • Type: Nachi Cylindrical Roller Bearing
  • Cage: Steel Cage
  • Dimensions: 105mm x 225mm x 49mm/Metric
  • ID (inner diameter)/Bore: 105mm
  • OD (outer diameter): 225mm
  • Width/Height/thickness: 49mm
  • Size: 105 x 225 x 49 mm
  • Quantity: One Bearing
  • Dynamic load rating Cr: 340,000 N
  • Static load rating Cor: 385,000 N
  • Limiting Speed:
    • Grease Lubrication: 2,600 RPM
    • Oil Lubrication: 3,200 RPM
  • Made in Japan

Construction of this roller bearing type is the simplest of all radial roller bearings. This bearing type is often used in high-speed applications. Because the inner ring, outer ring, and rollers are in line contact, this bearing type has a large radial load capacity. Various Cylindrical roller bearing configurations are:N,NJ,NF,NU,RNU : integral ribs (flanges)
NH,NP,NUP,NUH : integral and loose ribs
NN,NNU : double-row bearings
Configurations having integral flanges or loose ribs on both the inner and outer rings can sustain a small amount of axial load. Since this bearing type supports axial loads as sliding action between the end of the rollers and flange faces, axial loading is limited. Double-row Cylindrical roller bearings are used for high-speed, high-accuracy applications such as; main spindle support for lathes, milling machines, and machining centers. Radial clearance of tapered-bore bearings can be adjusted during mounting of the bearing(s) onto the mating journal. Standard cages are pressed steel or polyamide resin. Machined cages of high-strength brass are used for bearings of large dimension or for high-speed applications.