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Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Specifications
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
Material :
50CrVA alloy steel
Tensile strength :
1250-1400 MPa
Hardness :
HRc 45-50
Coating type :
Dacromet (zinc-aluminum flake)
Coating thickness :
8-12μm
Corrosion resistance :
1000 hours (ASTM B117)
Temperature range :
-40°C to 120°C
Load tolerance :
±2%
Force multiplication :
4.5x
Friction reduction :
30%
Preload stability :
±5% variation
Cycle durability :
10⁷ load cycles
Bearing life extension :
40%
Maintenance cost reduction :
25%
Configuration options :
Grooved/grooveless
Load distribution :
Uniform
Stacking compatibility :
Multi-plate parallel
Environmental resistance :
Chlorides, sulfides, pollutants
Coating performance :
Superior to phosphate treatments
Application :
Wheel hub, crankshaft, transmission
Description
Dacromet Bearing Preload Disc Spring
Advanced Corrosion Protection for Automotive Bearing Assemblies

Automotive bearing assemblies operate in extremely harsh environments characterized by cyclic humidity, road salt exposure, abrasive dust, and temperature fluctuations (-40°C to 120°C). Our Dacromet Bearing Preload Disc Spring is engineered to deliver exceptional anti-corrosion performance specifically optimized for automotive bearing pre-tightening applications.

Key Performance Advantages
  • Available in both grooved and grooveless configurations with precision-machined annular geometry
  • Ensures uniform load distribution (±2% tolerance) during multi-plate parallel stacking
  • Superior load multiplication with the same displacement, achieving up to 4.5x force output compared to single-disc configurations
  • Maintains stable preload force (±5% variation) over 10⁷ load cycles
  • 40% extension in bearing service life and 25% reduction in maintenance costs
Technical Specifications
Surface Treatment: Proprietary Dacromet (zinc-aluminum flake coating)
Coating Thickness: 8-12μm
Corrosion Resistance: Exceeds 1000 hours neutral salt spray testing (ASTM B117)
Base Material: 50CrVA alloy steel
Tensile Strength: 1250-1400 MPa
Hardness: HRc 45-50
Friction Reduction: 30% compared to traditional phosphate treatments

This advanced coating provides industry-leading corrosion resistance in aggressive environments containing chlorides, sulfides, and industrial pollutants, while minimizing wear during dynamic operation.

Application Areas

Effectively prevents bearing looseness in critical automotive systems including wheel hub assemblies, engine crankshaft bearings, and transmission gear sets, directly enhancing vehicle safety and reliability under extreme driving conditions.

Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
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Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant

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Product Detail
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Contact Supplier
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant
Dacromet Coated Bearing Disc Spring Automotive Preload High Fatigue Resistant

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
DIN 2093 Disc Spring, Single Turn Wave Spring, DIN 6796 Washer
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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