SS 6200 ZZ/2RS Stainless Steel Deep Groove Ball Bearings Suppliers

As an SS 6200 Series Stainless Steel Deep Groove Ball Bearings manufacturer and export-focused supplier, Ningbo Aosen Bearing Co., Ltd. supplies 3Cr13 stainless steel deep groove ball bearings for equipment that must operate reliably in humid, washdown and salt-exposed environments. Production runs through our in-house factory, Ningbo Weijun Bearing Co., Ltd., established in 2016, with more than 8,000 square meters of manufacturing space and an annual output of 13–15 million sets. The SS 6200 range covers compact 626 and 629 sizes through the medium-duty 6200–6207 models most often specified in food processing, pharma, marine and water-treatment machinery.

SS 6200 Series Range and Positioning

The SS 6200 series sits between the lighter stainless 6000 series and the heavier 6300 series. Its deep groove raceway supports radial loads and light axial loads in both directions, making it a practical choice for medium-duty rotating assemblies that need corrosion resistance without taking up excessive envelope space.

This line is part of our broader Stainless Steel Deep Groove Ball Bearings program. Where the application requires a lighter section, we also supply SS 6000 Series Stainless Steel Deep Groove Ball Bearings; for higher radial capacity, SS 6300 Series Stainless Steel Deep Groove Ball Bearings is the usual starting point.

Material, Corrosion Resistance and Surface Protection

Our standard SS 6200 series is manufactured from 3Cr13 stainless steel, selected for its balance of hardness, corrosion resistance and machinability in deep groove bearing production. The material resists rust in humid environments, performs consistently under cleaning conditions and extends service life compared with chrome steel in wet applications.

• Passivation treatment is available to improve surface corrosion resistance.
• Salt spray testing reaches 96 hours on treated parts.
• For higher chemical resistance, our custom stainless program can evaluate AISI 420, 440, 440C, 304 or 316 depending on the geometry and operating load.

Precision Grades and Quality Control

We supply SS 6200 series bearings in P0, P6 and P5 precision grades. Raceways are produced with precision grinding, and seals are fitted with controlled processes to hold dimensional accuracy and dustproof performance. During production we monitor inner and outer diameters plus roundness, and all bearings pass standardized factory inspection before shipment.

Our export team applies a second quality review over the factory output, which gives international buyers a practical dual-check system. This matters for automated assembly lines because consistent bore, OD, width and noise characteristics keep press-fit and feeding processes stable across batches.

Application Fit by Industry

• Food and beverage processing: resistance to moisture, washdown agents and hygienic cleaning cycles.
• Pharmaceutical and biotech equipment: stable, low-noise operation for sensitive instruments and filling lines.
• Marine and shipbuilding: tolerance to high humidity and salt exposure.
• Water treatment: dependable performance in wet and chemically exposed environments.
• Industrial machinery, automotive and motors: medium-duty radial support with low maintenance requirements.

ZZ/2RS Configurations, Lubrication and Customization

Each model is available with ZZ metal shields or 2RS rubber seals. ZZ suits dry, relatively clean environments where low torque is important; 2RS provides better protection against moisture, dust and washdown spray. Lubrication-free versions are available for maintenance-sensitive designs, and long-lasting grease options reduce service intervals and operating cost.

We customize grease type, fill quantity, tolerance class, passivation, packaging and bearing markings to match the final assembly. For OEM projects, we can work directly from customer drawings or reference samples and confirm the configuration before production.

Factory Capacity and Project Support

Our own factory supplies 40 mainstream deep groove ball bearing models with stable availability, while our partner network extends coverage to more than 230 models for non-standard dimensions, special materials and higher precision requirements. This combination supports both high-volume production and customized stainless steel bearing orders.

We export to Europe, the United States, Japan, Southeast Asia and the Middle East, serving industrial machinery, automotive and motor applications. One-stop project support includes customized production, dual quality control, stable supply, after-sales testing and rapid replenishment for repeat orders. Customers are welcome to visit our factory facilities.

Information We Use to Configure Your Solution

To prepare a suitable configuration and quotation, we need the operating conditions around the bearing, not just the part number.

• Model number or shaft/bore size, outer diameter and width.
• Radial, axial or combined loads and expected speed range.
• Duty cycle, operating temperature and required precision grade.
• Environment: humidity, washdown, chemical exposure, salt spray or outdoor service.
• Seal preference: ZZ, 2RS, or no shield for open bearings.
• Lubrication requirement: grease type, fill percentage, food-grade or oil lubrication.
• Housing and shaft fit details if mounting tolerances are already defined.
• Order quantity, delivery schedule and any specific inspection or testing requirements.

Send the model numbers you currently use or your assembly drawings. Our engineering and export teams will confirm the bearing selection, customization details and production plan.

SS 6200 Series FAQ