Overview
The Garlock 25003-3159 is a KLOZURE® Model 23 split oil seal from Garlock’s bearing protection line. Designed for severe service in rotating equipment, this isolator-style seal combines a one-piece design with engineered elastomer construction to extend bearing life, retain lubricant, and exclude contamination without wearing the shaft.
Key Features
- No Metal-to-Metal Contact — Labyrinth design eliminates shaft grooving and damage
- Split Design — Allows easy installation without disassembling equipment
- MILL-RIGHT® Material — Enhanced abrasion resistance and chemical/temperature tolerance
- Low-Wear Construction — No wearing components on the shaft surface
- Reliable Lubrication Retention — Keeps bearing oil in place while blocking contamination
- Industrial-Rated — Suitable for pumps, motors, gearboxes, and critical rotating equipment
Technical Specifications
- Manufacturer: Garlock
- Product Line: KLOZURE® Model 23
- Part Number: 25003-3159
- Seal Type: Split oil seal / Bearing isolator
- Design Style: Radial lip seal
- Sealing Element: MILL-RIGHT® elastomer (nitrile base)
- Configuration: One-piece, labyrinth design
- Installation: Hand-installable, no special tools required
- Applications: General and critical service
Typical Applications
- Centrifugal and positive displacement pumps
- Electric motors and turbine drives
- Gearbox bearing chambers
- Industrial fan and blower bearing housings
- Severe service rotating equipment with harsh chemical washdown environments
Compatibility & Replacements
Compatible With
- Goulds pumps and compatible pump brands
- Standard bearing housings (bore and shaft designs per Garlock specs)
- Industrial rotating equipment with metric and inch shaft diameters
- Equipment requiring non-contact labyrinth sealing
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator or equipment OEM before ordering to confirm shaft and bore dimensions match the 25003-3159 specifications.
Works With
- Mineral oil and synthetic oil lubricants
- Grease-lubricated bearing systems
- Various elastomer materials (standard nitrile, silicone, and fluoroelastomer available on order)
- Both metric and inch-dimensioned rotating equipment
