High-precision bearings, safety hardware, and accessories engineered to rigorous export standards.
Within highly corrosive, humid, or chemically aggressive environments, standard chrome steel and carbon steel bearings fail rapidly. AISI 316 Stainless Steel Bearings represent the gold standard of longevity, providing superior durability under chemical washdowns, saline environments, and extreme temperatures.
Commonly referred to as marine-grade stainless steel, 316 alloy contains 16-18% chromium, 10-14% nickel, and crucially, 2-3% molybdenum. The inclusion of molybdenum significantly improves the alloy's resistance to chloride-induced pitting and crevice corrosion compared to 304 or 440C grades. Vetor Group manufactures high-precision 316 bearings to ensure stable rotational speeds and structural integrity under demanding loads.
| Material Property Comparison | AISI 316 Stainless Steel | AISI 440C Stainless Steel | AISI 52100 Chrome Steel |
|---|---|---|---|
| Chemical Composition (Mo / Cr / Ni) | 2.5% Mo / 17% Cr / 12% Ni | 0.75% Mo / 17% Cr / 0.6% Ni | 0.3% Mo / 1.5% Cr / 0.3% Ni |
| Corrosion Resistance (Salt Spray Test) | Excellent (500+ Hours) | Moderate (96 Hours) | Poor (Fails rapidly without oil) |
| Hardness (Rockwell C) | 25 - 35 HRC (Tough, Ductile) | 58 - 62 HRC (Very Hard) | 60 - 64 HRC (Extremely Hard) |
| Load Carrying Capacity | Moderate (Dynamic loads limited) | High | Very High |
| Magnetic Properties | Non-magnetic (Non-sparking) | Magnetic | Magnetic |
Unlocking supply chain efficiency, advanced metallurgy, and cost optimization from China's premier bearing cluster.
Vetor Group is situated in Cixi, the heart of China’s high-precision bearing industrial belt. By collaborating with local material suppliers, heat-treatment facilities, and specialized logistics networks, we offer integrated supply chains that minimize turnaround times and overhead costs.
Maintaining the ideal balance of wear resistance and chemical stability is key to 316 stainless steel performance. Our production floor features vacuum heat treatment furnaces and cryogenic stabilization systems, ensuring precise control over structural phase changes.
Our VETOR brand focuses heavily on EMQ (Electric Motor Quality) standards. By incorporating automatic inspection modules, our bearings boast incredibly low noise levels, low vibration coefficients, and superior sealing properties under strict ISO9001 requirements.
Translating high-performance metallurgy into structural durability across diverse industrial domains.
Marine environments are laden with high-salinity moisture, accelerating oxidation and pitting. Vetor Group’s 316 stainless steel bearings are heavily utilized in marine deck machinery, winches, underwater propulsion systems, and coastal sensor nodes, ensuring minimal failure rates and long service lifetimes.
Industrial sanitation requires aggressive high-pressure washdowns with hot water, nitric acid, and chlorine-based cleaners. Standard bearings will rust, leading to batch contamination. Our 316 bearings are compatible with food-grade greases (H1 certified) or designed for dry-running in low-load applications, complying with stringent health regulations.
Whether in sulfur processing plants, battery manufacturing centers, or electroplating production lines, acids and alkalis easily eat through conventional steels. Our 316 grade bearings are paired with PTFE, PEEK, or PVDF retainers to create high-resistance assemblies capable of surviving direct chemical immersion.
With an increasing consumer demand for quiet, durable home appliances, VETOR EMQ-grade bearings are integrated into washing machines, range hoods, and pumps. Low friction and absence of abnormal noise are critical features that extend appliance lifespans and lower overall energy usage.
Explore our advanced grinding, assembly, inspection, and logistics facilities in Cixi City.
All Vetor Group manufacturing processes adhere to the ISO9001 international standard, guaranteeing material traceability, consistent dimensions, and compliance.
Connecting with worldwide procurement managers at prominent international trade fairs and industrial expos.
Beyond 316 bearings, we provide comprehensive industrial solutions across automotive and mechanical fields.
How we facilitate seamless import experiences, from customized branding to on-time port delivery.
Our dedicated global trade team is available from 8:00 to 17:00 (GMT+8), Monday through Saturday, ensuring fast quotes, shipping updates, and technical consultations.
Provide tailored engineering modifications. Custom logo laser marking, customized packaging solutions, and special internal clearance specifications (C2, C3, C4, C5) are fully supported.
We ensure that all bulk exports are manufactured, tested, packed, and delivered to either Shanghai or Ningbo ports within the contracted timeline to support your inventory planning.
Get answers to the most common technical inquiries regarding design, metallurgy, and procurement.
While AISI 440C is a high-carbon martensitic stainless steel with excellent hardness and load capacity, its corrosion resistance is limited in saltwater, strong acids, or chemical solutions. AISI 316 is an austenitic steel containing molybdenum, offering vastly superior resistance to chloride pitting, acidic vapors, and liquid submersion. However, 316 steel cannot be hardened by heat treatment to the same level as 440C, making it suitable for moderate loads and corrosion-critical environments.
Yes, in their annealed state, austenitic stainless steels like AISI 316 are virtually non-magnetic (magnetic permeability close to 1). Cold working during the manufacturing and grinding processes might induce slight magnetism, but it remains negligible. This makes 316 bearings highly desirable for medical MRI equipment, scientific instrumentation, and sensitive electronics where magnetic fields must not be disrupted.
Lubrication choice depends on the environment. For food-grade and pharmaceutical machinery, USDA H1 food-grade synthetic grease is used. In marine settings, calcium-sulfonate marine grease prevents washouts. For extremely slow-speed, low-load, or chemical tank applications, we can supply dry-running bearings with PTFE or PEEK polymer retainers that do not require grease.
For standard sizes, the MOQ starts at 1,000 units. For fully customized dimensions or special materials (like ceramic hybrid balls or polymer cages), please contact our team to discuss prototyping schedules and specific manufacturing parameters.
Every batch of 316 stainless steel raw material undergoes spectrographic chemical analysis before entering production. We provide official Mill Test Certificates (MTC) indicating exact Cr, Ni, and Mo percentages, ensuring absolute transparency and quality guarantee.
Explore our collection of specialized bearings, lighting, and heavy-duty mechanical elements.
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