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Guardian™ Metallic Bearing Isolator

Item #101084926
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Product details

  • 4 1/8 in Shaft Diameter
  • 5 1/4 in Housing Bore
  • 0.7 in Width
  • Flanged Style
  • Solid Construction


  • Patented Cam-Lock system to ensure proper, sustained fit
  • True, noncontacting seal design that eliminates shaft scoring, drag, and frictional heat without the need of lubrication
  • No bronze-to-bronze contact, which eliminates metal particles that can cause premature bearing failure
  • Unitized construction will not come apart during installation
  • Press-fit design ensures easy installation without the need for any tools
  • Supports predictive maintenance programs and reduces unscheduled downtime
  • No internal O-rings to wear out


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Housing Bore 5.25 in
Construction Solid
Misalignment Size ± 0.02 in
Flange Length 0.325 in
Seal Type Labyrinth
Surface Speed [Nom] 12,000 ft/min
Pressure Tolerance Ambient
Rotor/Stator Material Bronze
Unitizing Ring Material Filled PTFE
Lip Material PTFE
Style Flanged
O-Ring Material FKM
Temperature Range [Min] -22 °F
Inch/Metric Inch
Axial Motion 0.025 in
Shaft Dia. 4.125 in
Temperature Range [Max] 400 °F
Misalignment & Runout (In. @ Feet Per Minute) ± 0.020 in (51 mm)
Weight 2.71 LB
EAN or UPC 717744570200
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