S-5909K297 40.05 mm ID x 60 mm OD DIN 5405-3, ISO 303 Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Precision dimensional control ensures perfect fit and alignment on 40mm shafts, reducing assembly time and preventing equipment misalignment.
• Durable steel construction provides excellent load distribution and long-term reliability in high-stress mechanical applications.
• Compliance with DIN 5405-3 and ISO 303 standards guarantees consistent quality and interchangeability for global engineering projects.
• Tight tolerance specifications (ID: 0 to +0.25mm, OD: -0.3 to -0.05mm) enable precise positioning and secure fastening in critical assemblies.
• RoHS 3 and REACH environmental compliance ensures safe use in regulated industries and supports corporate sustainability initiatives.
• 1mm thickness with minimal variation offers reliable spacing and shimming capabilities without adding excessive bulk.
• 60mm outer diameter provides a broad bearing surface, enhancing stability and protecting components from surface damage.

Professional Applications & Engineering Value

This metric steel washer is engineered to solve critical challenges in precision shaft applications, where even minor misalignments can lead to equipment failure or performance degradation. Its 40.05mm internal diameter with controlled positive tolerance ensures a secure, slip-free fit on standard 40mm shafts, eliminating play and vibration. The DIN 5405-3 and ISO 303 compliance certifies its manufacturing consistency, making it a trusted component in industrial machinery, automotive assemblies, and precision mechanical systems. The robust steel material withstands high cyclic loads and harsh operating environments, while the precise 1mm thickness acts as an effective spacer or shim, maintaining exact component clearances. This combination of dimensional accuracy and material strength directly addresses engineering pain points related to assembly efficiency, component protection, and long-term operational reliability.

Specification Summary & Compliance

This precision washer meets exacting dimensional standards with an ID of 40.05mm (tolerance: 0mm to +0.25mm), OD of 60mm (tolerance: -0.3mm to -0.05mm), and thickness of 1mm (tolerance: -0.05mm to +0.05mm). It is manufactured in accordance with DIN 5405-3 and ISO 303 specifications, ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to the latest environmental and safety regulations for industrial components.