S-90391A141 135 mm ID x 185 mm OD DIN 5406 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial environments
• External tooth configuration provides maximum bite and anti-rotation security on chamfered bearing nut surfaces
• Precision conical spring design maintains consistent tension and locking force under dynamic loads
• Durable steel construction ensures long-term reliability in demanding mechanical applications
• Metric dimensional accuracy guarantees perfect fit with M135 screws and DIN 981 bearing nuts
• Compliant with DIN 5406 and DIN 981 standards delivers certified performance for European mechanical systems
• Environmental compliance meets RoHS 3 and REACH regulations for safe use across global markets

Professional Applications & Engineering Value

This M135 spring lock washer addresses critical vibration-induced fastener failure in heavy machinery, automotive assemblies, and industrial equipment. The external tooth design creates positive locking action on chamfered bearing nut surfaces, eliminating rotational slippage that compromises joint integrity. Manufactured from high-grade steel with precise conical geometry, it maintains constant spring force that compensates for thermal expansion and load variations. The combination of 135mm ID and 185mm OD dimensions ensures optimal surface coverage while the 8mm overall height provides sufficient deflection range for lasting tension. Engineered to DIN 5406 and DIN 981 standards, this metric spring lock washer delivers reliable performance in European-designed mechanical systems where vibration resistance is paramount.

Specification Summary & Compliance

This external tooth spring lock washer features precise metric dimensions (135mm ID × 185mm OD × 8mm height) with 2.0mm thickness and specialized tab geometry (14mm width × 5mm depth). Manufactured to DIN 5406 for spring lock washers and DIN 981 for bearing nut compatibility, it ensures dimensional interoperability within metric fastener systems. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components.