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Phosphating Dacromet Bearing Disc Spring Washer Blackening Bearing Preload Disc Spring

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Phosphating Dacromet Bearing Disc Spring Washer Blackening Bearing Preload Disc Spring

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Place of Origin : Sihong, China

Brand Name : Sunzo

Certification : CE/IATF16949/45001/14001/9001

MOQ : Negotiable

Price : Negotiable

Packaging Details : Carton

Delivery Time : Negotiable

Payment Terms : Negotiable

Surface treatment options : Phosphating, Dacromet, Blackening, Mechanical Zinc Plating, Plain Oiled

Phosphating thickness : 5-15μm

Wear resistance increase : 30%

Salt spray resistance : 48-hour ASTM B117

Dacromet temperature resistance : Up to 300°C

Dacromet corrosion resistance : 1500+ hours ASTM B117

Blackening layer thickness : 1-3μm

Humidity test resistance : 96-hour ISO 6270-2

Mechanical Zinc thickness : 50-80μm

Abrasion resistance : 450HV

Plain Oiled thickness : 5-8μm

Load distribution variance : ±2%

Force multiplication : Up to 5.8x

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Bearing Preload Disc Spring Surface Treatment Options
The surface treatment of Bearing Preload Disc Springs (grooved/grooveless series) directly impacts corrosion resistance, wear performance, and service life in critical bearing assemblies. Our comprehensive surface treatment portfolio is engineered to address diverse operating conditions, with each coating system optimized for specific environmental stresses and performance requirements.
Available Surface Treatment Options
  • Phosphating (iron/manganese/zinc phosphate) forms a crystalline conversion coating (5-15μm thickness) ideal for general industrial bearings operating in hydraulic oil or dust-laden environments. It enhances wear resistance by 30% compared to untreated surfaces and provides excellent adhesion for subsequent lubrication, passing 48-hour salt spray testing per ASTM B117.
  • Dacromet (zinc-aluminum flake coating) delivers superior corrosion protection (1500+ hours ASTM B117 salt spray) for aerospace, automotive, and marine applications, withstanding temperatures up to 300°C and resisting chemical attack from fuels and deicing fluids.
  • Blackening (alkaline oxidation) creates a uniform black oxide layer (1-3μm) for precision machinery bearings, offering moderate rust protection (96-hour humidity test per ISO 6270-2) while maintaining close tolerance control critical for high-precision assemblies.
  • Mechanical Zinc Plating applies a 50-80μm zinc alloy coating via mechanical deposition, ideal for heavy industrial bearings in mining and construction equipment, providing abrasion resistance exceeding 450HV and compatibility with high-load applications.
  • Plain Oiled treatment (mineral oil film, 5-8μm) offers cost-effective rust protection for light-load bearings in household appliances and small motors, facilitating easy installation with minimal friction.
All surface treatments are engineered to preserve the annular spring geometry, ensuring no impact on load distribution (±2% variance) or load multiplication performance (up to 5.8x force output).
Phosphating Dacromet Bearing Disc Spring Washer Blackening Bearing Preload Disc Spring

Product Tags:

Phosphating Bearing Disc Spring

      

Dacromet Bearing Disc Spring

      

Blackening disc spring washer

      
Quality Phosphating Dacromet Bearing Disc Spring Washer Blackening Bearing Preload Disc Spring for sale

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