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Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
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{"title":"Bearing Disc Spring designed for bearing pre tightening with grooved and","imgUrl":"https:\/\/img.chinax.com\/nimg\/9d\/1e\/ce588c570816ec49e8b6265d004c-200x200-1\/bearing_disc_spring_designed_for_bearing_pre_tightening_with_grooved_and_grooveless_types_featuring_simple_durable_annular_design.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"sunzo","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
{"title":"Bearing Disc Spring constructed from spring steel and stainless steel for","imgUrl":"https:\/\/img.chinax.com\/nimg\/23\/26\/930235021ba16b66b2130966c425-200x200-1\/bearing_disc_spring_constructed_from_spring_steel_and_stainless_steel_for_bearing_preload_and_uniform_load_distribution.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"sunzo","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
{"title":"Bearing Disc Spring with 65Mn Carbon Steel, 50CrVA High-Strength Alloy, and","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/06\/a8f35c4da253cddb7f07a5f17cec-200x200-1\/bearing_disc_spring_with_65mn_carbon_steel_2c_50crva_high_strength_alloy_2c_and_sus304_stainless_steel_for_optimal_preload_perform.jpg","attrs":{"Tensile strength":"980-1180 MPa","Elastic recovery":"\u226585%","Temperature range":"-40\u00b0C to 120\u00b0C","Fatigue resistance":"\u226510\u2077 cycles"}}
{"title":"High Stiffness Bearing Disc Spring Grooveless Series for Heavy Load Bearing","imgUrl":"https:\/\/img.chinax.com\/nimg\/82\/9f\/cb6c8b7021af2d136f5c79647a4a-200x200-1\/high_stiffness_bearing_disc_spring_grooveless_series_for_heavy_load_bearing_preload_and_uniform_load_force_in_multiple_plate_beari.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"SUNZO","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
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)
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2006
Total Annual:
1.2M-1.4M
Employee Number:
160~200
Ecer Certification:
Verified Supplier
Jiangsu Sunzo Spring Elasticity Technology Co., Ltd.
Jiangsu Sunzo Spring Elasticity Technology Co., Ltd. is a mixed-ownership enterprise established with the participation of China National Nuclear Corporation. The R&D center is located in Nanjing, Jiangsu, while the production base is situat...
Jiangsu Sunzo Spring Elasticity Technology Co., Ltd.
Jiangsu Sunzo Spring Elasticity Technology Co., Ltd. is a mixed-ownership enterprise established with the participation of China National Nuclear Corporation. The R&D center is located in Nanjing, Jiangsu, while the production base is situat...