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PUR-GARD™ Bearing Isolators

PUR-GARD™ bearing isolators offer the ultimate rotating equipment sealing solutions for the food processing industry. Manufactured with materials that are FDA compliant, metal detectable and x-ray inspectable while utilizing a patented IP66 design, PUR-GARD™ is a revolutionary seal that combines improved safety and overall process purity with cost savings through extended equipment and bearing life.

FEATURES AND BENEFITS

  • Patented labryinth design provides bearing protection even in the most challenging environments, extending the life of rotating equipment
  • Unitized construction will not come apart during installation 
  • IP66 in most common design configurations 
  • Non-contacting design reduces shaft drag and energy consumption 
  • Available in a broad range of configurations 
  • Substantially reduced installation time - NO ARBOR PRESS NEEDED 
  • No metal-to-metal contact 
  • Metal detectable and x-ray inspectable

TYPICAL APPLICATION 

Rotating equipment (pumps, motors, gearboxes) exposed to heavy wash down and/or zone 1 and 2 applications

DESIGN PARAMETERS 

  • Temperature: -22ºF (-30ºC) to 400ºF (204ºC) 
  • Shaft to bore misalignment: ±0.020” (0.51 mm) 
  • Axial motion to ±0.015” (0.38mm) 
  • Surface speed: to 12,000 FPM Max. (60.9 m/s) 
  • Pressure: Ambient 
  • Non-contact labyrinth seal design

PATENTED CAM-LOCK O-RING GROOVE DESIGN 

The patented Cam-Lock design of PUR-GARD™ provides excellent bore retention while allowing easy installation by hand, without the need for an arbor press. 

MATERIALS OF CONSTRUCTION 

  • 316 stainless steel stator and rotor
  • Patented DETECTOMER® FKM o-rings

GARLOCK PATENTED UNITIZING RING 

PUR-GARD™ bearing isolators employ the patented unitizing ring to eliminate metal-to-metal contact between the rotor and stator. 

BEARING ISOLATOR CONFIGURATIONS 

PUR-GARD™ bearing isolators are offered in various configuration for a perfect fit to your equipment 
  • Flanged: IP66
  • Small Cross Section: IP66
  • Flangeless Narrow Width: IP55
  • Flangeless: IP55
  • Split Pillow Block: IP66
  • Step Shaft: IP66
  • Vertical: IP66
  • Split Option: IP66
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