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SF Series Standard-Duty Setscrew Locking 4-Bolt Flange Unit

Item #100736523
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Product details

  • Felt Labyrinth Seal Type


  • Designed for flush mounting with machined bases and four bolt holes.


  • Patented, felt-lined flinger seal
  • 120° set screw position
  • Precision-ground, diamond-faceted set screws
  • Unique metal land riding retainer
  • Zone-hardened inner race
  • Permanent metal nameplate
  • Black oxide, corrosion-resistant race
  • Differentiated lubrication and sealing system
  • Superior shaft stability
  • 52100 high quality bearing steel
  • Exclusive locking pin and dimple system
  • Extra wide outer race
  • Extra wide inner race
  • Solid base cast iron housing


Bore Shape Straight
End Cap No
T Core 3.3125
Expansion No
Outer Ring Land Profile Standard
Centerline to Front Face (in) 1
Duty Series Standard
Foot Height (in) 0.5625
Housing Base Solid
Overall Height (in) 1.75
Pilot Configuration No Pilot
Replaceable Insert Yes
Housing Material Cast Iron
Seal Type Felt Labyrinth Seal
Relubricatable Yes
Inner Race Heat Treat Method Zone-Hardened
Insert Material 52100 Bearing Steel, Black Oxided
Misalignment Type Static Only
Inner Ring OD (in) 1.859375
Insert No. 2-16
Housing Construction One Piece
Lubrication Lithium Complex NLGI 2 Grease
Bore Size - Inch 1.375
Internal Clearance Standard
Bearing Insert Coating Black Oxide Coated
Inner Race Length (in) 1.6875
Maximum Operating Temperature 220
Bolt Center-to-Center Length (in) 3.6250
Measure Units Inch
Platform Gold Line Ball Bearing
Retainer Type Land Riding Retainer
Weight 3.745 LB
EAN or UPC 662461003497
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