Overview
The Garlock KLOZURE 29502-4111 is a premium bearing isolator engineered with glass-filled PTFE material for contamination exclusion and lubrication retention. This flanged ISO-GARD® design uses a unitized labyrinth seal mechanism to prevent ingress of contaminants while maintaining bearing lubrication integrity. The non-contacting design reduces shaft drag and energy consumption compared to traditional lip seals.
Key Features
- Glass-filled PTFE construction — Excellent chemical resistance and durability in aggressive environments
- Unitized labyrinth seal design — Prevents ingress of contaminants and egress of bearing lubricant
- Patented Cam-Lock O-ring grooves — Enables easy hand installation without arbor press
- Non-contacting operation — Eliminates metal-to-metal contact, reducing vibration and misalignment
- IP 66 rated sealing — Comprehensive protection against water and dust ingress
- IEEE 841-2001 compliant — Meets pump and motor bearing protection standards
Technical Specifications
| Part Number | 29502-4111 |
| Manufacturer | Garlock |
| Product Line | KLOZURE® ISO-GARD® Bearing Isolator |
| Inner Diameter (ID) | 2.500 inches |
| Outer Diameter (OD) | 3.250 inches |
| Material | Glass-filled PTFE |
| Design Type | Flanged Labyrinth Seal |
| Width | 0.748 inches |
| Flange Thickness | 0.375 inches |
| Sealing Rating | IP 66 |
| Standards Compliance | IEEE 841-2001 |
| Condition | New in Box |
Typical Applications
- Electric motor bearing protection in industrial duty cycles
- Centrifugal pump bearing sealing for water and process fluids
- Gearbox bearing isolation in flooded and splash-lubrication systems
- Mine-duty and hazardous-duty motor bearing protection
- Food processing and beverage equipment (with suitable elastomer selection)
Compatibility & Replacements
Compatible With
- Ball and roller bearings with 2.500″ bore diameter
- Standard industrial motor shafts 2.500″ and larger
- Centrifugal pump bearing housings
- Gearbox bearing cavities (non-flooded and flooded lubrication)
- IEEE 841 motors and equivalent industrial-duty equipment
Replaces / Drop-In Replacement For
The Garlock KLOZURE 29502-4111 is designed as a direct replacement for OEM bearing isolators and legacy seals in the 2.500″ ID size class. Verify specific equipment compatibility with your system integrator or equipment manufacturer before ordering to ensure flange fit and shaft diameter compliance.
Works With
- KLOZURE® product family — compatible with matching elastomer and material selections
- Mineral oil and synthetic bearing lubrication systems
- Water-based and chemical process fluids (material dependent)
- IEEE 841-2001 compliant motor designs
- Retrofits on existing pump and motor bearing cavities with standard 2.500″ bore
