DIN137 304 Stainless Steel Wave Spring Washer

description

1. Compact, Vibration-Dampening Spring Performance
   • Formed to DIN 137 Type A/B in work-hardened 304 stainless steel, each wave washer provides a progressive load–deflection curve that maintains clamp force despite thermal expansion, joint relaxation, or dynamic shock.
   • Three to six sinusoidal waves distribute stress uniformly, delivering repeatable spring rates from 100 N to 5 000 N while keeping height ≤ 0.6 × nominal thickness—ideal where coil springs or bellevilles will not fit.
   • Austenitic stainless chemistry (≥ 18 % Cr, 8 % Ni) offers intrinsic corrosion resistance in chlorides, humidity, and mild acids from −200 °C to +300 °C with no red-rust formation or galvanic staining.
   • Shot-peened surfaces introduce compressive residual stress, extending fatigue endurance beyond 2 × 10⁶ cycles at 60 % of maximum deflection, ensuring long-term preload retention in vibrating assemblies.
2. Broad, Cross-Industry Application Spectrum
   • Electronics & Instrumentation: Cushions PC-boards, sensors, and display modules against thermal cycling and resonance while keeping fastening torque low.
   • Automotive, Rail & Off-Highway Vehicles: Maintains tension in trim panels, drivetrain covers, and exhaust brackets exposed to road shock, engine vibration, and corrosive spray.
   • Medical & Laboratory Equipment: Provides smooth, low-profile compliance in pump heads, microscope stages, and imaging housings where sterilisable stainless components are mandatory.
   • Renewable Energy & HVAC Systems: Compensates for gasket creep in solar-panel clamps, wind-turbine nacelle doors, and air-handler flanges that undergo daily temperature swings.
3. Installer-Friendly, Space-Saving Handling
   • One-piece design slips beneath a standard bolt or screw head—no special tooling or preload gauges required; simply torque to the catalog value and the wave form self-adjusts.
   • Low solid height allows use of original fastener lengths, eliminating spacer blocks and reducing overall stack weight in compact assemblies.
   • Deburred edges and mirror-lapped faces prevent galling on polished shafts or anodised surfaces, while the symmetric profile removes orientation errors during rapid assembly.
   • Available loose, on tape-and-reel, or in carrier strips for automated pick-and-place systems; size and thickness are laser-etched for instant visual identification on the line.
4. Verified Quality & Long-Term Durability
   • 100 % dimensional inspection confirms thickness ±0.02 mm, outer/inner diameter ±0.05 mm, wave height ±0.03 mm, and parallelism ≤ 0.05 mm; Cp/Cpk ≥ 1.67 data are archived for ISO 9001, IATF 16949, and AS 9100 records.
   • Passivated finish (per ASTM A967) removes free iron and enhances pitting resistance; optional vibratory polishing achieves Ra ≤ 0.4 µm for clean-room or aesthetic applications.
   • Salt-spray, humidity, and 1 000-hour UV ageing tests show no loss of spring force or discoloration, verifying suitability for outdoor and marine environments.
   • Each production lot carries a QR code linking melt chemistry, hardness profile, load-deflection curve, and fatigue data, giving engineers full traceability and confidence in safety-critical assemblies across industries.