Gap Sub Washers

Gap Sub Washers

A gap sub washer functions as a precise spacer or insulator placed between two components in a mechanical or hydraulic system. It controls the axial clearance or "gap" between parts while also distributing compressive loads evenly. In high-wear environments—such as drilling, fluid handling, and precision tooling—ceramic versions of these washers offer far greater performance and reliability than conventional alternatives.

industrial ceramic materials

Material Diversity

HIPed Yttria-Stabilized Zirconia (HIPed YSZ) | HIPed AluminaToughened Zirconia (HIPed ATZ)

All washers are isostatically pressed, sintered at high temperatures, and ground to precision tolerances, ensuring flatness, parallelism, and consistent thickness across batches.

Industries Served

  • Oil & Gas Drilling
  • Mining & Mineral Exploration
  • Aerospace and Defense
  • Precision Engineering
  • Chemical Processing Equipment

Application

  • Gap adjustment in MWD and LWD tool strings
  • Spacer washers in mud motor assemblies
  • Alignment rings in rotating subassemblies
  • Shimming and tolerance compensation in highprecision mechanisms
  • Load-distribution in hydraulic or pneumatic actuators
  • Sealing stack separation and preload control

Key Advantages

  • High Wear Resistance: Suitable for long-term use in abrasive environments such as drilling fluid exposure or rotating assemblies.
  • Dimensional Stability: Maintains precise gap control even under thermal and mechanical stress.
  • Corrosion and Chemical Resistance: Performs reliably in corrosive or high-pH environments.
  • Electrical Insulation: Acts as an insulator in applications where electrical isolation is required.
  • Minimal Deformation: High compressive strength ensures no collapse or creep under axial loads.

Conclusion

Ceramic gap sub washers from CeramForge provide unmatched durability, dimensional precision, and chemical resistance for mission-critical applications. Whether you're working in the depths of a drilling well or the fine tolerances of a high-speed assembly, our ceramic washers are engineered to outperform traditional materials and ensure long-term system integrity. When every micron and every cycle matters, choose CeramForge ceramic gap sub washers—precision-engineered for performance under pressure.