Graco 116192 Thrust Washer

Graco 116192 Thrust Washer: Precision Engineered Seal for High-Performance Fluid Handling Systems

The Graco 116192 thrust washer is a critical component designed for heavy-duty fluid handling and high-pressure pump assemblies. Manufactured to precise tolerances, this washer serves as a low-friction seal that stabilizes axial loads in airless spray equipment. It minimizes metal-to-metal contact and ensures the integrity of the piston assembly under extreme operating conditions. On a microscopic level, the thrust washer is engineered with a polished surface finish that reduces wear and optimizes fluid film formation. In addition to its role in sustaining consistent film thickness, it protects adjacent parts from abrasive particles generated during continuous operation and mitigates potential fatigue failure. Engineers rely on its repeatable dimension control and consistent lubricant retention profile to calibrate pump output and maintain uniform fluid displacement across varying pressure ranges. It is compatible with a wide range of hydraulic fluids and coating solvents.

• High-density PTFE composite with 0.005 in thickness tolerance
• Outer diameter 1.940 in and inner diameter 1.250 in
• Hardness 60 HRR for optimal wear resistance

Constructed from a proprietary blend of ultra-high molecular weight PTFE and reinforcement fibers, the Graco 116192 thrust washer exhibits exceptional dimensional stability under cyclical loading. This material selection reduces coefficient of friction and withstands abrasive contaminants in fluid streams. In typical airless sprayer paint operations, stainless steel and aluminum pump housings can generate stress concentrations that accelerate wear; the PTFE matrix within the thrust washer absorbs shock and cushions axial thrust. Integration instructions specify a precise washer preload to optimize seal compression without inducing excessive bearing friction, enhancing both pump lifespan and volumetric efficiency. When deployed in a Graco Ultimate Mx II sprayer, the washer seamlessly conforms to piston rod geometry and maintains fluid isolation, preventing cross-leakage and preserving finish quality in industrial and commercial coating processes. The washer complies with ISO 21049 dimensional standards for thrust bearings.

Performance Metrics and Operational Efficiency

Quantitative evaluations of the thrust washer under laboratory conditions confirm its ability to sustain pressures up to 5000 psi while maintaining sub-micron tolerance deviations. The integrated hydrodynamic profile channels fluid around the washer circumferentially, enabling optimized high-pressure filtration that removes particulate down to 3 microns. These filtration grooves work in concert with the washer’s low-wear surface to prevent performance degradation over 10,000 actuation cycles. Vibrational analysis indicates that radial run-out remains under 0.0015 in, a critical parameter for consistent pump operation. Comparative testing shows a 15% improvement in pump efficiency when retrofitting this washer into legacy pump models, translating directly into reduced motor current draw and improved duty cycles. Such enhancements are especially valuable in multi-component coating systems where precision dosing and pressure stability dictate coating uniformity and finish quality.

Design Integration and Maintenance Insights

During routine assembly, technicians should inspect mating surfaces for scoring or corrosion, as even minor geometric irregularities can compromise thrust washer performance. Installation calls for a calibrated torque sequence to ensure uniform axial preload without introducing elastic deformation. Post-installation, periodic condition monitoring via endoscopic inspection or ultrasonic thickness gauging can extend component life. Empirical data demonstrates that, with proper lubrication protocols and filtration maintenance, the Graco thrust washer achieves up to 2000 hours of continuous operation before replacement is recommended. Such durability highlights the engineered material resilience and contributes to superior seal longevity, reducing unplanned downtime in demanding environments. For optimal results, replacement intervals should coincide with pump seal change-outs and inline strainer cleaning to maintain consistent flow rates and prevent particulate-induced wear.

Engineers specifying the Graco 116192 thrust washer in professional coatings equipment benefit from its corrosion-resistant composite and fine surface topography, which ensures compatibility with solvent-based and waterborne chemistries. Its optimized geometric profile complements impeller seal housings and piston rods, delivering uniform force distribution and minimal startup torque. By integrating this washer into new pump designs or retrofitting existing units, design teams can achieve tighter performance controls and enhanced durability. The washer’s proven track record in demanding industrial applications, from architectural paint to automotive finishes, underscores its versatility. Coupled with high-pressure filtration systems and rigorous material testing, the thrust washer contributes to superior operational reliability and lower lifecycle costs. Specifying this washer aligns with best practices for fluid management and mechanical sealing, setting a new standard for precision in fluid delivery systems. Consult Graco engineering bulletins for integration guidelines and validate performance under site-specific conditions. Custom machining options are available for specialized applications.