S-90391A143 145 mm ID x 202 mm OD DIN 5406 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
• Precise metric sizing compatibility with M145 screws and DIN 981 bearing nuts for seamless integration
• External tooth configuration provides maximum bite and prevents rotational loosening in high-stress applications
• Chamfered bearing nut face ensures smooth installation and reduces assembly time
• Heavy-duty steel construction delivers reliable performance in demanding industrial environments
• Full regulatory compliance with RoHS 3 and REACH standards for global manufacturing acceptance
• DIN 5406 certification guarantees consistent quality and dimensional accuracy across all production batches

Professional Applications & Engineering Value

This M145 Spring Lock Washer engineered to DIN 5406 standards addresses critical vibration-induced fastener failure in heavy machinery, automotive assemblies, and industrial equipment. The conical spring lock washer design creates continuous spring pressure that compensates for material relaxation and thermal cycling, maintaining clamp force where standard flat washers fail. The external teeth location bites into both bearing surfaces, providing positive locking action that prevents rotational slippage under torsional loads. Manufactured from high-quality metric steel with precise 145mm ID and 202mm OD dimensions, this washer ensures perfect compatibility with M145 screw sizes and chamfered bearing nut face styles, reducing installation errors and improving assembly efficiency in production environments.

Specification Summary & Compliance

This spring lock washer meets DIN 5406 specifications with precise dimensional tolerances including 145mm internal diameter, 202mm outer diameter, and 2.0mm thickness. The conical washer design features external tooth location and is compatible with DIN 981 bearing nut standards. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring certified components.