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 Composition :
50CrVA (1.05%C-0.8%V-0.25%Mo), 60Si2MnA (0.6%C-2.0%Si-1.0%Mn)
Hardness :
HRC 45-50
Tensile Strength :
1800MPa
Elastic Limit :
≥1200MPa
Fatigue Life :
>10⁷ cycles at 40% load
Preload Retention :
>95% after 10⁶ cycles
Load Variance :
±3%
Load Multiplication :
2.5-5.2x
Max RPM :
25,000 RPM
Operation Frequency :
up to 500Hz
Wall Thickness :
±0.005mm
Fillet Radius :
R0.3-R0.8mm
Quenching Temp :
860°C (50CrVA), 870°C (60Si2MnA)
Tempering Temp :
420°C (50CrVA), 480°C (60Si2MnA)
Stack Configuration :
2-8 discs
Continuous Operation :
20,000 hours
Stress Concentration :
Eliminated
Uniform Load :
Yes
High-Speed Operation :
Yes
Extreme Conditions :
Yes
Description
Bearing Disc Spring Fatigue Resistance
Our Bearing Preload Disc Spring (grooved/grooveless series) exhibits exceptional fatigue resistance, engineered to excel in high-speed continuous bearing operation across precision machinery, automotive powertrains, and industrial spindles.
Ultra-High Cycle Durability
Engineered for high-speed continuous bearing operation in extreme conditions, these disc springs deliver reliable performance in demanding applications.
Optimized Geometric Design
  • Annular geometry with stress-relieved fillets (R0.3-R0.8mm)
  • Uniform wall thickness (±0.005mm) eliminates stress concentration points
  • Designed for high-frequency preload cycling up to 500Hz
Premium Material Construction
Material Composition Heat Treatment Properties
50CrVA 1.05%C-0.8%V-0.25%Mo Quenched at 860°C, tempered at 420°C HRC 45-50 hardness, 1800MPa tensile strength
60Si2MnA 0.6%C-2.0%Si-1.0%Mn Quenched at 870°C, tempered at 480°C Superior elastic limit (≥1200MPa)
Performance Specifications
Fatigue Life: Exceeds 10⁷ cycles at 40% of ultimate load
Preload Force Retention: >95% after 10⁶ compression-rebound cycles (per ISO 10243 standards)
Load Distribution: ±3% variance in parallel stacked configurations (2-8 discs)
Load Multiplication: 2.5-5.2x at equivalent displacement
Application Range
Ensures stable preload for high-speed bearings operating at up to 25,000 RPM, including:
  • Automotive transmission bearings
  • CNC spindle angular contact bearings
  • Industrial robot joint bearings
  • Automotive engine timing systems
  • Precision grinding machines
Field Validation
No measurable deformation or performance degradation after 20,000 hours of continuous operation in demanding industrial applications.
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High Cycle Durability Bearing Springs Fatigue Resistant Diaphragm Spring Pressure Plate

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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
Contact Supplier
High Cycle Durability Bearing Springs Fatigue Resistant Diaphragm Spring Pressure Plate
High Cycle Durability Bearing Springs Fatigue Resistant Diaphragm Spring Pressure Plate
High Cycle Durability Bearing Springs Fatigue Resistant Diaphragm Spring Pressure Plate

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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