S-5909K972 2.125" ID x 2 7/8" OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Exceptional dimensional accuracy with tight ID and OD tolerances ensures perfect fit and alignment for 2 1/8" shafts, reducing assembly time and preventing equipment misalignment.
• Ultra-thin 0.03125" profile allows for space-saving installations in compact assemblies without compromising load distribution or structural integrity.
• Precision-engineered steel construction provides superior strength, corrosion resistance, and long-term durability under demanding industrial operating conditions.
• Strict RoHS 3 and REACH compliance guarantees safe, environmentally responsible manufacturing for global supply chain integration and regulatory peace of mind.
• Optimized for high-tolerance applications with controlled thickness variation, ensuring consistent performance as a reliable shim or spacer in precision machinery.
• Broad industrial compatibility with standard inch-system components makes it ideal for maintenance, OEM manufacturing, and mechanical power transmission systems.

Professional Applications & Engineering Value

This precision steel washer is engineered to address critical alignment and spacing challenges in industrial machinery. Its exact 2.125" ID and 2 7/8" OD are manufactured to tight tolerances, ensuring secure seating on 2 1/8" shafts while minimizing radial play and vibration. The ultra-thin 0.03125" thickness provides essential shimming capability in confined assemblies—such as motor mounts, bearing housings, and gearboxes—where precise component positioning is vital. Made from durable steel, it withstands mechanical stress and environmental exposure, making it suitable for heavy-duty applications in automotive, aerospace, and industrial equipment. The washer’s high-tolerance design eliminates the need for custom machining, reducing downtime and ensuring reliable performance in precision-grade mechanical systems.

Specification Summary & Compliance

This washer meets exacting dimensional standards with ID tolerance of 0.002" to 0.012", OD tolerance of -0.03" to -0.01", and thickness tolerance of -0.00125" to 0.00075". Manufactured in accordance with inch-system specifications for 2 1/8" shaft diameter applications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.