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Single Row Steel Cylindrical Bearing

NU 221 ECJ

Single Row Steel Cylindrical Bearing
Item #100742924
  • 4.13 in Inner Diameter
  • 7.48 in Outer Diameter
  • 1.42 in Width
Single Row Steel Cylindrical Bearing
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  • 4.13 in Inner Diameter
  • 7.48 in Outer Diameter
  • 1.42 in Width

description

  • The EC design contains improvements in guiding surfaces of flanges and roller ends, which means that EC bearings have a high axial load-carrying capacity.

applications

  • Traction motors
  • Gearboxes
  • Electric motors

features

  • Improved roller-end-to-flange contact
  • Increased capacity

compliances

  • In accordance with ISO 15-1981
Static Load Rating [Max] 70,800.00 lbf
Enclosure Open
End Type Open End
No. of Rows Single
Material Bearing Steel
Dynamic Load Rating 300 kN
I.D. 4.13 in, 105 mm
Outer Ring Width 1.42 in, 36 mm
Relubrication Feature Without
O.D. 7.48 in, 190 mm
Oil Hole w/o Oil Hole
Inch/Metric Metric
Tolerance Normal (PN)
Bearing Part Complete Bearing
Full Cage Description Pressed Steel Cage
Cage Type Sheet Metal
No. of Ribs - Outer Ring 2
O.D. Type Cylindrical
Rows of Balls Single
Bearing Design Removable Inner Ring – Straight – Double Flanged Outer Ring and Single Flange Inner Ring
Precision Ground Yes
Series 2
Static Load Rating 315 kN
Heat Stabilization 302 °F
Cage Material Bearing Steel
Precision Rating ABEC 1
Bore Type Cylindrical
Reference Speed 3800 rpm
Radial Internal Clearance Specification Normal Clearance
Limiting Speed 4300 rpm
Origin Cylindrical Radial
Radial Internal Clearance Group N
Capacity High Capacity
Width 1.42 in, 36 mm
Bearing Type Radial
Inner Ring Width 1.42 in, 36 mm
Weight 8.808 LB
EAN or UPC 7316577043573
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