S-5909K296 8.025 mm ID x 21 mm OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Optimized for 8mm shafts with precise 8.025mm inner diameter for secure, vibration-resistant fit in demanding mechanical assemblies
• Superior load distribution through 21mm outer diameter design, minimizing surface pressure and preventing component damage
• Consistent thickness control at 2.75mm ensures uniform clamping force and reliable performance under heavy loads
• High-strength steel construction provides excellent durability and corrosion resistance for extended service life
• Tight dimensional tolerances guarantee perfect fit and alignment in precision engineering applications
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial markets
• Versatile metric sizing compatible with international standards for seamless integration into existing systems

Professional Applications & Engineering Value

This precision metric steel washer delivers exceptional engineering value through its carefully engineered dimensions and high-grade steel material. The 8.025mm inner diameter with controlled tolerance ensures perfect alignment on 8mm shafts, eliminating play and reducing vibration-induced failures in rotating equipment. The generous 21mm outer diameter provides superior load distribution, preventing surface deformation in soft materials and extending component lifespan. With tight thickness control at 2.75mm, these washers maintain consistent clamping force in bolted connections, critical for machinery, automotive, and industrial equipment where reliability is paramount. The RoHS and REACH compliance makes these washers suitable for export-oriented manufacturing and environmentally conscious industries, while the metric sizing ensures compatibility with international engineering standards.

Specification Summary & Compliance

This precision steel washer features dimensional specifications including 8.025mm ID (+0.15mm tolerance), 21mm OD (-0.51mm to -0.3mm tolerance), and 2.75mm thickness (-0.06mm to 0mm tolerance) designed for 8mm shaft applications. The product maintains tight manufacturing tolerances consistent with industrial grade requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets and restricted substance compliance.