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Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
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{"title":"Bearing Disc Spring with Ultra-High Cycle Durability for High-Speed Continuous","imgUrl":"https:\/\/img.chinax.com\/nimg\/d4\/5a\/78f7d0af00e757eef9ab6f29eef2-200x200-1\/bearing_disc_spring_with_ultra_high_cycle_durability_for_high_speed_continuous_bearing_operation_and_fatigue_resistance.jpg","attrs":{"Material":"50CrVA, 60Si2MnA","Carbon content":"1.05% (50CrVA), 0.6% (60Si2MnA)","Vanadium content":"0.8% (50CrVA)","Molybdenum content":"0.25% (50CrVA)"}}
{"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"}}
Bearing Disc Spring Manufacturer in China - ISO 9001 Certified Global Supplier
As a professional Bearing Preload Disc Spring manufacturer in China with over 15 years of industry expertise, we provide global supply of high-performance grooved and grooveless bearing disc springs to international bearing assembly and mechanical manufacturing clients across 40+ countries.
Quality Certifications & Standards
Our production facilities are ISO 9001:2015 certified and adhere to stringent international industrial standards including ISO 10243, DIN 2092, and ASTM A973. This ensures each spring meets precise dimensional tolerances (±0.01mm) and delivers consistent performance.
Engineering Excellence
The standardized annular design—engineered through FEA simulation and iterative prototyping—guarantees:
Uniform load force distribution (±2% variance) in multi-plate configurations
Load multiplication with the same displacement (3.2-6.8x force output) across all specifications
Product Portfolio & Customization
We offer a comprehensive product portfolio featuring 200+ standard sizes matching international bearing models (SKF, Timken, NSK) and fully customized solutions including CAD/CAM design support and 3D printing prototyping tailored to unique application requirements.
Materials & Surface Treatments
Material Range
Surface Treatments
High-strength alloys (50CrVA, 60Si2MnA)
Phosphating
Stainless steels (SUS304/316)
Dacromet
Superalloys (Inconel 718, Hastelloy C276)
Mechanical zinc plating
PTFE coating
Production Capacity & Global Reach
With an annual production capacity of 5 million units across 12 automated production lines, we ensure 98% on-time delivery and provide 24/7 technical support. Our products are exported to Europe (Germany, Italy), Americas (USA, Mexico), Southeast Asia (Singapore, Malaysia), and Oceania.
Industry Applications
Aerospace (helicopter transmission bearings)
Automotive (EV motor assemblies)
Precision machinery (CNC spindles)
Heavy industry (mining equipment)
Quality Assurance
Each batch undergoes 100% quality inspection including CMM dimensional analysis, fatigue testing (10⁷ cycles), and corrosion resistance verification (ASTM B117 salt spray) to maintain reliability in extreme operating conditions.
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...
