S-5909K985 3.75" ID x 4.625" OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Enhanced Equipment Reliability through precise dimensional control with tight ID, OD, and thickness tolerances
• Superior Load Distribution with heavy-duty steel construction for demanding industrial applications
• Perfect Fit for 3 3/4" Shafts ensuring optimal alignment and reduced vibration in mechanical assemblies
• Exceptional Durability provided by high-quality steel material resistant to wear and deformation
• Environmental Compliance Assurance with RoHS 3 and REACH compliance for global market acceptance
• Precision Engineering delivering consistent performance in critical tolerance applications
• Reduced Maintenance Costs through reliable performance and long service life in harsh operating conditions

Professional Applications & Engineering Value

This precision grade steel washer addresses critical engineering challenges in industrial equipment where dimensional accuracy directly impacts performance. The tight tolerance specifications (ID: 0.002" to 0.017", OD: -0.03" to -0.01", thickness: -0.0025" to 0.0005") ensure perfect fitment on 3 3/4" shafts, preventing misalignment and reducing stress concentrations in rotating assemblies. The heavy-duty steel construction provides exceptional load-bearing capacity while maintaining dimensional stability under extreme pressures. These industrial washers are engineered for applications requiring superior dimensional accuracy, including heavy machinery, power transmission systems, and precision equipment where vibration control and proper load distribution are paramount to operational efficiency and equipment longevity.

Specification Summary & Compliance

This precision steel washer features inch system measurements with ID 3.75" (tolerance 0.002" to 0.017"), OD 4.625" (tolerance -0.03" to -0.01"), and thickness 0.09375" (tolerance -0.0025" to 0.0005"). Manufactured to exacting standards for 3 3/4" shaft applications, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets while maintaining exceptional dimensional precision for reliable mechanical performance.