ATKS

Mechanical Seals and Seal Support Systems

Bearing Isolators - Bearing Gard

About this product

The Bearing Gard incorporates innovative static sealing technology to provide sealing protection under shut-off conditions. An internal O-ring between the rotor and stator prevents contamination from entering the bearing housing when the equipment is not operating. When the equipment is started, the static sealing system quickly transitions to non-contacting operation for permanent non-wearing performance.

Features and Benefits

  • Static protection is assured by an internal O-ring between the rotor and stator.
  • Dynamic protection is provided by a tortuous labyrinth that effectively repels severe environmental conditions.
  • Standard design accommodates axial shaft movement of 0.63 mm (0.025 in) TIR
  • Static sealing quickly transitions to non-contacting operation for consistent performance and will not wear on the shaft or equipment.
  • Oil retention features work to keep oil inside the bearings and off the ground.

Specifications

  • Rotor:
    • Bronze
  • Stator:
    • Bronze
  • O-rings:
    • Fluoelastomer
  • Bearing Lubrication:
    • Oil splash
    • Grease
    • Oil mist
    • Dry lubrication
    • Non-flooded conditions
  • Shaft Size:
    • 23 – 203 mm (0.875 to 8.000″)
  • Housing bore:
    • 20 – 50 mm (1.000 – 2.000″) over shaft diameter for shaft sizes up to 150 mm (6.000″)
    • 25 – 50 mm (1.000 – 2.000″) over shaft diameter for shaft sizes over 150 mm (6.000″)
  • Speed:
    • up to 30 m/s (100 ft/s)
  • Maximum axial movement:
    • 0.63 mm (0.025″) TIR
  • Maximum radial runout:
    • 0.13 mm (0.005″) TIR
  • API 610
  • IP-66
  • IEEE-841
  • ATEX
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