FDA Compliant PUR-GARD™ Bearing Isolator

PUR-GARD™ Bearing IsolatorsPUR-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, Garlock PUR-GARD™ is a revolutionary seal that combines improved safety and overall process purity with cost savings through extended equipment and bearing life.

Features & Benefits

  • Patented labyrinth 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 Applications

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

Patented Cam-Lock O-Ring Design Groove

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

If you have any questions about the Garlock PUR-GARD™,  and how to implement them into your processes, please feel free to reach out to our engineering department.