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Bearing Isolator Labyrinth Seal
Up to 3600 RPM (application-dependent)
-40℃ to +200℃ (-40℉ to +392℉)
Bronze, Stainless Steel, Composite, FDA Polymer
Horizontal and vertical
Bearing Isolator Labyrinth Seal – Non-Contact, Maintenance-Free Protection for Rotating Equipment
The Bearing Isolator Labyrinth Seal is a non-contact, dynamic sealing solution designed to protect bearing housings in rotating equipment from contamination and lubricant leakage. It utilizes a two-part design—rotor and stator—to form a complex labyrinth pathway that blocks ingress of dust, water, and other contaminants, while retaining lubrication within the bearing housing.
Unlike traditional lip seals, this labyrinth isolator operates without shaft contact, eliminating shaft wear, reducing friction, and extending equipment service life significantly. The seal is ideal for use in pumps, motors, gearboxes, fans, and other rotating machinery.
Non-Contact Design – No friction, no shaft wear
Contamination Exclusion – Labyrinth path blocks dirt, water, and dust
Lubricant Retention – Effectively seals in grease or oil
Maintenance-Free – Zero lubrication or adjustment required
Easy Installation – Press-fit or Cam-Lock designs available
High Performance Range – Handles extreme temperatures and environments
Versatile Applications – Suitable for pumps, motors, blowers, gearboxes
Electric motors and generators
Pumps and gearboxes
Blowers, fans, compressors
Industrial processing equipment
Power generation and mining machinery
Food and pharmaceutical machinery (FDA materials available)
Bronze
Stainless Steel
Aluminum Alloy
High-Performance Polymer (FDA grade optional)
Composite (metal + polymer)
Press-fit design
Cam-Lock design
Split-type isolators for large shafts
Horizontal or vertical mounting orientation
Single or dual sealing path options
| Parameter | Specification |
|---|---|
| Type | Non-contact Labyrinth Bearing Isolator |
| Structure | Rotor + Stator with multi-stage labyrinth path |
| Shaft Size Range | 0.5” to 12” (custom sizes up to 36”) |
| Operating Temperature | –40°C to +200°C (–40°F to +392°F) |
| Pressure Rating | Atmospheric (non-pressurized environments) |
| Rotational Speed | Up to 3,600 RPM (application-dependent) |
| Material Options | Bronze, Stainless Steel, Composite, FDA Polymer |
| Installation Methods | Press fit, Cam-Lock, or Split installation |
| Certifications (Optional) | IP66 / IP67 / IP69K / FDA / RoHS compliant |
| Lubricant Compatibility | Grease, mineral oils, synthetic oils |
| Application Orientation | Horizontal and vertical |
| Maintenance Requirements | None (zero maintenance, non-wearing) |
| Feature | Lip Seal | Bearing Isolator |
|---|---|---|
| Contact with Shaft | Yes (friction, wear) | No (non-contact) |
| Lifespan | 6–18 months | 5+ years |
| Contamination Barrier | Moderate | Excellent |
| Lubricant Retention | Fair | Excellent |
| Shaft Damage Risk | High | None |
| Maintenance | Periodic replacement | Maintenance-free |
Split design for retrofit installation
FDA-certified material for food & pharma equipment
High-speed balancing for applications >3600 RPM
Dust cover or rain shield attachments
Custom branding or laser engraving
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