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Single Row Steel Cylindrical Bearing

NU 311 ECP/C3

Single Row Steel Cylindrical Bearing
Item #100743021
  • 2.17 in Inner Diameter
  • 4.72 in Outer Diameter
  • 1.14 in Width
Single Row Steel Cylindrical Bearing
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  • 2.17 in Inner Diameter
  • 4.72 in Outer Diameter
  • 1.14 in Width

applications

  • Traction motors
  • Electric motors
  • Gearboxes

features

  • Logarithmically crowned rollers
  • High speed performance
  • Precision-honed rolling contact surfaces

compliances

  • In accordance with ISO 15-1981
Internal Clearance C3
Radial Internal Clearance Specification Greater Than Normal Clearance
O.D. 4.72 in, 120 mm
Bearing Design Removable Inner Ring – Straight
Series 3
Cage Type Non-Metallic
Element Material Bearing Steel
No. of Rows 1
Relubrication Feature Without
Bearing Part Complete Bearing
Width 1.14 in, 29 mm
Row Type 1
Oil Hole w/o Oil Hole
Capacity High Capacity
Tolerance Normal (PN)
Bore Type Cylindrical
Material Bearing Steel
Cage Material Polyamide
Limiting Speed 7000 rpm
I.D. 2.17 in, 55 mm
Rolling Element Roller
Origin Cylindrical Radial
Inner Ring Width 1.14 in, 29 mm
Bearing Type Radial
Precision Ground Yes
End Type Open End
Dynamic Load Rating 156 kN
Precision Rating ABEC 1
Rows of Balls Single
Reference Speed 6000 rpm
No. of Ribs - Outer Ring 2
Static Load Rating 143 kN
O.D. Type Cylindrical
Radial Internal Clearance C3
Enclosure Open
Inch/Metric Metric
Outer Ring Width 1.14 in, 29 mm
Weight 3.243 LB
EAN or UPC 7316577033000
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