S-5909K82 55.06 mm ID x 78 mm OD DIN 5405-3, ISO 303 Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Precise shaft compatibility with 55.06mm inner diameter and controlled tolerance (0mm to 0.3mm) ensures secure fit and reduces vibration in rotating assemblies
• Enhanced load distribution through 78mm outer diameter with tight OD tolerance (-0.36mm to -0.06mm) minimizes surface stress and extends component life
• Consistent performance maintained by 1mm thickness with minimal variation (±0.05mm) for uniform spacing and alignment in precision applications
• Guaranteed dimensional accuracy through compliance with DIN 5405-3 and ISO 303 international standards for reliable interchangeability
• Superior durability provided by steel construction offering excellent wear resistance in demanding mechanical environments
• Environmental responsibility with full RoHS 3 and REACH compliance ensuring safe use in regulated industries
• Reduced maintenance requirements through precise manufacturing that prevents premature wear on mating components

Professional Applications & Engineering Value

This precision steel washer delivers critical engineering value in applications requiring exact shaft alignment and spacing control. Manufactured to DIN 5405-3 and ISO 303 specifications, the washer addresses common industrial challenges including bearing pre-load management, axial play elimination, and component protection against fretting corrosion. The metric dimensions with tight tolerances ensure perfect compatibility with 55mm shafts, preventing misalignment that can lead to premature bearing failure or mechanical inefficiency. The steel material provides optimal strength for heavy-duty applications while the precise 1mm thickness maintains consistent spacing in assemblies where even minor variations can impact performance. Ideal for industrial machinery, power transmission systems, and precision equipment where reliable shaft washer performance is critical to operational uptime.

Specification Summary & Compliance

This metric steel washer features precise dimensional specifications: 55.06mm ID (0mm to 0.3mm tolerance), 78mm OD (-0.36mm to -0.06mm tolerance), and 1mm thickness (±0.05mm tolerance). Manufactured in compliance with DIN 5405-3 and ISO 303 standards for dimensional accuracy and quality assurance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications while meeting international regulatory requirements for hazardous substance restrictions.