Overview
The Garlock 29502-4112 is a KLOZURE® ISO-GARD® Bearing Isolator that combines proven labyrinth sealing technology with unitized PTFE construction to deliver dependable bearing protection in demanding industrial applications. Designed for 2.375″ shaft and 3.250″ bore dimensions, this flanged isolator prevents contamination ingress while retaining bearing lubrication, making it essential for pumps, motors, gearboxes, and other rotating equipment operating in harsh or flooded environments.
Key Features
- Non-contact labyrinth design — Eliminates metal-to-metal contact, reducing vibration, noise, and energy consumption compared to traditional O-ring seals.
- Glass-filled PTFE construction — Provides excellent chemical resistance, durability, and wear tolerance across temperature extremes.
- Patented Cam-Lock O-ring grooves — Enables hand installation without requiring an arbor press; speeds assembly and reduces installation labor.
- Unitized design — Internal PTFE unitizing ring eliminates rotor/stator metal contact, increasing bearing life and mean time between failures (MBTF).
- Flanged configuration — 0.375″ flange depth ensures secure mounting and retention in OEM and retrofit applications.
- IEEE 841-2001 compliant — Meets standards for electric machinery bearings and bearing protection in severe-duty environments.
Technical Specifications
- Shaft Diameter: 2.375 inches
- Bore Diameter: 3.250 inches
- Width: 0.748 inches
- Flange Depth: 0.375 inches
- Material: Glass-filled PTFE with bronze rotor and stator
- Design: Flanged labyrinth seal, non-contact
- Installation Method: Cam-Lock O-ring grooves (hand-installable)
- Sealing Rating: IP 66 (dust and water ingress protection)
- Condition: New in Box
Typical Applications
KLOZURE® bearing isolators excel in protecting rotating equipment from contamination while maintaining bearing lubrication film. Common installations include:
- Centrifugal and positive displacement pumps — Especially in abrasive slurry, corrosive chemical, or flooded-lubrication environments.
- Electric motors and mechanical drives — IEEE 841 compliance makes them ideal for severe-duty motor applications.
- Gearboxes and speed reducers — Protects enclosed bearings in industrial transmission equipment.
- Turbomachinery and compressors — High-speed applications where energy efficiency and MBTF are critical.
- Renewable energy equipment — Wind turbines, hydroelectric generators, and marine propulsion systems benefit from extended bearing life.
Compatibility & Replacements
Compatible With
- Garlock KLOZURE® bearing isolator installation kits and support equipment
- Standard 2.375″ shaft diameters in conformance with ISO metric and ANSI inch standards
- Pumps and motors rated for 3.250″ bore mounting interfaces
- Existing equipment currently using split or flanged bearing isolators
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or bearing isolator specialist before ordering. This part number corresponds to Garlock’s ISO-GARD® Series in the 2.375″ × 3.250″ bore configuration. Direct cross-references should be confirmed against Garlock’s official product selector tool and your OEM documentation.
Works With
- Garlock bearing isolator maintenance and seal-replacement kits
- Standard bearing lubrication systems (oil and grease compatible)
- Mechanical shaft alignment and coupling assemblies rated for flanged isolators
- Rotating equipment condition monitoring and vibration analysis programs
