Bearing Seals

bearing seals, taconite seals, ler seals, labyrinth seals, protector seals Dust Box Video

The seal is critical to bearing life.

A misapplied seal can actually diminish bearing life, leading to premature equipment failure and costly repairs. Applied properly, a bearing seal will extend bearing life and save money by reducing downtime and maximizing uptime. Bearing seals range from a simple seal ring (LER) design to both advanced-contacting and non-contacting type sealing arrangements.

A proper seal will surround the shaft, retain lubricant internal to the bearing assembly, and exclude foreign debris from the housing.

Miether Bearing Products will minimize downtime and make the most of your bearing investment. As a leading manufacturer of specialty bearing housings, seals, and accessories designed to maximize your bearing life our goal is to:

  • Minimize downtime with maintenance friendly features
  • Increase bearing life with rugged , sturdy construction
  • Maximize your uptime with 50% faster delivery on new and repaired products through our Optima™ Program

Miether provides a variety of seals to accommodate the split pillow block SAF series, solid pillow block MMW series, and flange cartridge block FCL/FCS series housings. They are available in fractional and metric dimensions, and can be customized for special applications. Materials of construction for hard parts are typically steel, aluminum, and stainless steel. Soft parts are made from Buna N and Viton.  

Miether Exclusive: Pro II Seal

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The Protector® is an engineered seal design featuring precision double-wound stainless steel laminar rings for ultimate protection against contaminates, abrasives, and moisture.taconite seal ring, protector seal, bearing seal ring

  • Shaft Diameters: 2-7/16" – 20" standard.
    Custom & metric sizes available
  • Carrier Construction: Aluminum or Steel
  • Soft Components: Buna-N or Viton
  • Lubrication: Grease
  • Speed: Unlimited
  • Misalignment: +/− 0.5°
  • Temperature Range: up to 300° F/149° C
  • Replaceable O-Ring without disassembly

Taconite Seal Ring

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TER (Taconite Engineered Ring) is a specialty seal featuring three seals in one retainer. Used in dusty, abrasive, and moist environments, the Taconite seal has unique characteristics that prevent contaminants from entering the assembly. taconite seal ring, protector seal, bearing seal ring

  • Shaft Diameters: 2-7/16" – 20" standard.
    Custom & metric sizes available
  • Carrier Construction: Aluminum or Steel
  • Soft Components: Buna-N or Viton
  • Lubrication: Grease or Oil
  • Speed: Up to 3000 FPM
  • Misalignment: Minimal
  • Temperature Range: up to 300° F/149° C

Triple Seal Ring with O-ring or LER-O-ring

non-contact seals, bearing seals, Protector seals, taconite sealsnon-contact seals, bearing seals, Protector seals, taconite seals
  • Shaft Diameters: 2-7/16" – 20" standard. Custom & metric sizes available
  • Carrier Construction: Aluminum or Steel
  • Soft Components: Buna-N or Viton
  • Lubrication: Grease
  • Speed: Unlimited
  • Misalignment: +/− 0.5°
  • Temperature Range: up to 300° F/149° C
  • Replaceable O-Ring without disassembly

Triple Seal Ring Split or Split LER

non-contact seals, bearing seals, Protector seals, taconite sealsnon-contact seals, bearing seals, Protector seals, taconite seals
  • Shaft Diameters: 2-7/16" – 20" standard. Custom & metric sizes available
  • Carrier Construction: Aluminum or Steel
  • Lubrication: Grease
  • Speed: Unlimited
  • Misalignment: +/− 0.5°
  • Temperature Range: up to 300° F/149° C

Visit our resources section to download product literature.

Save the Bearing. Start with the Housing.

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