S-5909K87 20.04 mm ID x 35 mm OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Optimized shaft compatibility - Precisely engineered 20.04mm inner diameter ensures perfect fit and secure positioning on 20mm shafts
• Superior load distribution - 35mm outer diameter provides maximum surface contact to prevent component damage and deformation
• Consistent performance - Tight dimensional tolerances (ID: 0mm to 0.21mm, OD: -0.56mm to -0.31mm) guarantee reliable installation and uniform pressure distribution
• Durable steel construction - High-strength material offers excellent resistance to wear, corrosion, and mechanical stress in demanding applications
• Regulatory compliance assurance - Meets RoHS 3 and REACH environmental standards for safe use across global markets
• Space-efficient design - 2.75mm thickness provides optimal strength while maintaining compact assembly profiles
• Metric precision engineering - Manufactured to exact metric specifications for seamless integration with international equipment standards

Professional Applications & Engineering Value

This precision metric steel washer delivers exceptional engineering value through its carefully calibrated dimensions and robust steel construction. The precisely controlled 20.04mm inner diameter with minimal tolerance variation ensures perfect alignment on 20mm shafts, eliminating play and vibration that can compromise mechanical systems. The generous 35mm outer diameter distributes clamping forces evenly across mating surfaces, preventing stress concentration and surface damage to expensive components. The 2.75mm thickness provides optimal balance between structural integrity and space constraints, making it ideal for industrial machinery, automotive assemblies, and heavy equipment where reliable fastening is critical. The steel material offers superior durability against repeated loading cycles and environmental exposure, while the metric precision design ensures compatibility with global engineering standards and replacement parts.

Specification Summary & Compliance

This precision metric washer features dimensional specifications including 20.04mm inner diameter (0mm to 0.21mm tolerance), 35mm outer diameter (-0.56mm to -0.31mm tolerance), and 2.75mm thickness (-0.06mm to 0mm tolerance). Manufactured from high-quality steel, the washer is engineered for 20mm shaft applications with tight tolerance control ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest international standards for hazardous substance restrictions and chemical safety.