Elring 068.140 Seal Ring

Elring 068.140 Seal Ring

The Elring 068.140 Seal Ring is a high‑performance sealing component designed for use in automotive injection pump systems. It provides reliable, long‑lasting protection against fluid leakage and ensures optimal operation of the pump shaft within demanding engine environments.

Key Functional Characteristics

• Material Composition: Constructed from a blend of PTFE (polytetrafluoroethylene) and ACM (acrylic rubber), this seal ring delivers exceptional chemical resistance, low friction, and high temperature tolerance.
• Temperature Range: Capable of operating effectively between -40 °C and +260 °C, making it suitable for a wide variety of engine conditions.
• Pressure Resistance: Designed to withstand internal pressures up to 1200 bar, ensuring secure containment of hydraulic fluids under extreme load.
• Dimensional Precision: Manufactured with tight tolerances (±0.02 mm) to guarantee a perfect fit on the pump shaft and housing, minimizing wear and extending service life.

Application Scope

The Elring 068.140 Seal Ring is specifically engineered for:

• Injection pump shafts in gasoline and diesel engines.
• High‑performance automotive powertrains, including models from Mercedes‑Benz, SsangYong, and Puch.
• Industrial hydraulic systems where reliable sealing is critical.

Installation Guidelines

1. Preparation: Clean the pump shaft and housing thoroughly to remove any debris or old seal material. Use a solvent compatible with PTFE/ACM to ensure optimal adhesion.
2. Alignment: Position the seal ring on the shaft, aligning it precisely with the groove in the housing. Avoid twisting or bending the ring during placement.
3. Securing: Gently press the seal into place until it fully engages the groove. Verify that the ring sits flush against the shaft without gaps.
4. Verification: Inspect the installation visually and, if possible, perform a pressure test to confirm leak‑free operation before reassembling the pump.

Maintenance & Longevity

While the Elring 068.140 Seal Ring is engineered for durability, routine checks are recommended:

• Inspect for signs of wear or deformation during scheduled maintenance intervals.
• Avoid exposure to extreme temperatures beyond specified limits; if encountered, replace promptly.
• Ensure that the surrounding components (shaft, housing) remain clean and free from contaminants that could accelerate seal degradation.

Compatibility & Interchangeability

This seal ring is interchangeable with other Elring models bearing similar dimensions and material specifications. However, it is essential to verify the exact fit for each specific engine or pump configuration before installation.

Technical Data Sheet Highlights

Performance Benefits

• Enhanced Sealing Integrity: The combination of PTFE and ACM provides a robust barrier against fluid leakage, reducing maintenance costs.
• Reduced Wear: Low friction properties minimize wear on both the seal ring and surrounding components, extending overall system life.
• Reliability Under Stress: High pressure tolerance ensures consistent performance even under peak operating conditions.

Conclusion

The Elring 068.140 Seal Ring stands out as a reliable, high‑quality component for injection pump systems and related hydraulic applications. Its advanced material blend, precise manufacturing, and proven performance make it an essential part for engineers seeking durability and efficiency in demanding automotive and industrial environments.