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Steel Super Precision Angular Contact Ball Bearing

3MM207WI DUM

Steel Super Precision Angular Contact Ball Bearing
Item #101020792
  • 1.378 in Inner Diameter
  • 2.835 in Outer Diameter
  • Super Precision
  • 1.339 in Overall Width
  • Cylindrical OD
Steel Super Precision Angular Contact Ball Bearing
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  • 1.378 in Inner Diameter
  • 2.835 in Outer Diameter
  • Super Precision
  • 1.339 in Overall Width
  • Cylindrical OD

applications

  • High speed grinding
  • High speed boring and milling
  • Precision vertical and horizontal milling spindles
  • High speed routing

features

  • ABEC 9/ISO P2 axial running tolerances for higher accuracy
  • Non-critical features manufactured to ABEC 7/ISO P4 tolerances for cost effectiveness
  • 15 degree initial contact angle for high degree of rigidity in both axial and radial directions and low operating temperatures
  • Clean steel supports longer service life
No. of Rows 2
Bearing Arrangement Universal
Precision Level Extra Precision (ABEC 7)
Radial Internal Clearance Specification Normal Clearance
Static Load Rating [Max] 3650 lbf
Universally (Flush) Ground Yes
Lubricant Oil Preservative
Dynamic Load Rating 7200 lbf
Material Steel
O.D. 72 mm
Seal Type Unsealed
No. in Set Duplex Set
Inch/Metric Metric
Bearing Type Single Row Angular Contact
Limiting Speed - Grease 17400 rpm
Origin Single Row Angular Contact
Bore Type Round Bore, Metric Type
Outer Ring Width 17 mm
Contact Angle 25°
Rolling Element Material Steel
Bearing Material Steel
Preload Level Medium
Seal Material None
Fillet Radius 0.039 in
Inner Ring Width 17 mm
Enclosure Open
Ball Material Steel
O.D. Type Straight
Cage Type Machined Window
I.D. 35 mm
Cage Material Phenolic
Filling Slot No
Fillet Radius Cone 0.043 in, 1.09 mm
Closure Type Open
Relubricatable No
Overall Width 1.339 in, 34 mm
Precision Class ABEC Class 7/9
Rolling Element Ball
Weight 1.28 LB
EAN or UPC 87796070301
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