S-5909K96 18 mm ID x 31 mm OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Exceptional dimensional stability with precise 18mm internal diameter ensuring perfect fit for standard 18mm shafts, eliminating play and misalignment
• Superior load distribution thanks to 31mm outer diameter design that minimizes surface pressure and prevents component damage
• Consistent performance maintained through tight thickness tolerance of 1mm ±0.05mm for uniform pressure application across assemblies
• Long-lasting durability provided by high-quality steel construction that withstands heavy-duty industrial environments and repeated stress cycles
• Regulatory compliance assurance with full RoHS 3 and REACH compliance, meeting international environmental and safety standards for global applications
• Metric system compatibility designed for seamless integration with metric machinery and equipment, reducing conversion errors and installation time
• Reliable corrosion resistance from quality steel material that maintains structural integrity in various operating conditions

Professional Applications & Engineering Value

This precision metric steel washer delivers critical engineering value in industrial applications where exact dimensional control is paramount. The 18mm internal diameter with controlled tolerance ensures perfect alignment with standard shaft sizes, eliminating rotational play and vibration issues that compromise machinery performance. Manufactured from high-grade steel, this washer provides essential load distribution between fastened components, preventing surface deformation and extending equipment service life. The precise 1mm thickness maintains consistent clamping force in assembly stacks, while the 31mm outer diameter offers optimal bearing surface for heavy-duty applications. Ideal for industrial machinery, automotive assemblies, and precision equipment, this washer solves common engineering challenges including component wear, misalignment, and premature fastener failure. The RoHS 3 and REACH compliance further ensures environmental responsibility without compromising mechanical performance.

Specification Summary & Compliance

This precision metric steel washer features an 18mm internal diameter (0mm to 0.032mm tolerance), 31mm outer diameter (0mm to 0.3mm tolerance), and 1mm thickness (0mm to 0.05mm tolerance). Manufactured to exacting standards for 18mm shaft applications, the product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use across global markets.