Overview
The Timken National 476281 is a high-performance industrial oil seal designed for critical sealing applications in machinery and equipment. This dual-lip, spring-loaded design without an inner case provides reliable protection against fluid leakage and contamination ingress. Built to Timken’s exacting manufacturing standards, the 476281 combines proven seal technology with robust construction to deliver consistent performance across diverse industrial environments.
Key Features
- Dual-lip spring-loaded design for enhanced sealing performance
- Maximum shaft surface speed rating of 3000 FPM
- Without inner case configuration for flexible installation
- Precision-engineered dimensions for accurate fit and minimal wear
- Manufactured to Timken quality standards for durability and reliability
Technical Specifications
- Shaft Diameter: 2.75 inches
- Outside Diameter: 4.13 inches
- Overall Width: 0.5625 inches
- Maximum Surface Speed: 3000 FPM
- Construction Type: Dual-Lip, Spring-Loaded
- Case Style: Without Inner Case
- Manufacturer: Timken National
Typical Applications
The Timken National 476281 is well-suited for a broad range of industrial applications including:
- Rotating equipment and shaft sealing
- Gearbox and transmission sealing
- Pump and motor shaft protection
- Industrial machinery bearing isolation
- OEM and aftermarket equipment repair
Compatibility & Replacements
Compatible With
- Industrial machinery with 2.75-inch shaft diameter requirements
- Gearboxes and transmission assemblies
- Centrifugal pumps and electric motors
- Standard oil-lubricated rotating equipment
Replaces / Drop-In Replacement For
The Timken National 476281 is a direct replacement for original National-branded seals of the same part number. Verify compatibility with your system integrator or maintenance team before ordering to ensure proper fit in your specific equipment.
Works With
- ISO and ASTM-standard mineral oils
- Standard mechanical seal assemblies
- Existing Timken National seal cartridges
- OEM and aftermarket bearing housings
