Overview
The Graphalloy 204 STK2004204 is a graphite/metal alloy bearing engineered by Graphite Metallizing Corp for reliable performance in mechanical power transmission and industrial motion control systems. GRAPHALLOY is a unique self-lubricating carbon, graphite bushing and bearing material that offers superior performance in hundreds of mechanical and electrical applications. This bearing combines the benefits of solid lubrication with metal-reinforced strength, eliminating the need for external lubrication in many operating environments.
Key Features
- Self-Lubricating: Provides solid lubrication with low, constant coefficient of friction.
- Extended Service Life: In some applications, these bearings have operated for up to 20 years without maintenance.
- Corrosion Resistant: Non-corrosive material with no fumes.
- Wide Temperature Range: Effective for moderate to very low temperatures and have been used in liquid gas applications to -452 F (-269 C).
- Submersible Design: Can operate submerged in water, gasoline, hydrocarbons, cleaning fluids, hot oil, acids, alkalies or dyes.
- No Fumes: Operating at the recommended temperatures and loads, these bushings do not produce fumes or odors and can be used with confidence where oil or other lubricants might cause contamination.
Technical Specifications
The Graphalloy 204 series delivers metal-impregnated graphite construction designed for precision bearing applications. GRAPHALLOY is available in over 100 grades with specific properties that meet a wide range of engineering solutions and specifications. Please consult the manufacturer’s datasheet or contact our technical team for detailed specifications on bore diameter, outside diameter, length, material composition, operating temperature limits, and load ratings specific to the STK2004204 model.
Typical Applications
- High-temperature industrial ovens and conveyor systems
- Food processing equipment (FDA-approved grades available)
- Water treatment and municipal well applications
- Chemical and petrochemical processing
- Marine and submersible equipment
- Cam rollers and vertical shaft guide bushings
- Dampers and shock-absorption devices
- Aerospace and instrumentation applications
Compatibility & Replacements
Compatible With
- Standard and custom bearing mounting designs
- High-temperature furnace and kiln applications
- Submersible and wet-environment systems
- Food processing and pharmaceutical equipment
- Water and wastewater treatment installations
Replaces / Drop-In Replacement For
For specific replacement applications and compatible part numbers, verify compatibility with your system engineer or equipment manufacturer before ordering. Graphalloy bearings are often custom-designed to original equipment specifications.
Works With
- Standard bearing housings and pillow blocks
- OEM-specified mounting interfaces
- High-temperature furnace systems
- Submersible and corrosive-environment seals
