SUS316 Stainless Steel Bearings Manufacturers

Jiangsu Yinghong Transmission Technology Co., Ltd. (YHU) is a professional Wholesale SUS316 Stainless Steel Bearings Factory and manufacturer in China. We produce high-precision deep groove ball bearings under the registered YHU brand, leveraging Japanese precision manufacturing technology and fully automated production lines. Our SUS316 bearing range is designed for applications where corrosion resistance, non-magnetic properties, and chemical inertness are critical.

Product Range and Series

Our SUS316 stainless steel bearings are available in three primary series, each engineered for specific load and speed requirements:

• S67 Series – Extra-thin section bearings for space-constrained assemblies, ideal for instruments and small motors.
• S68 Series – Standard thin-section deep groove bearings, balancing load capacity and compactness.
• S69 Series – Slightly wider section for higher radial load capacity, suitable for pumps and agitators.

All series are available with open, shielded (ZZ), or sealed (2RS) configurations. We also offer flanged versions and custom non-standard sizes upon request.

Material Properties and Why SUS316

SUS316 is an austenitic stainless steel with molybdenum (Mo) addition, providing superior pitting and crevice corrosion resistance compared to SUS304. It retains non-magnetic characteristics even after cold working, making it essential for sensitive electronic and medical equipment. The material composition per JIS G4303 includes approximately 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, with a maximum carbon content of 0.07%.

Our SUS316 bearings are manufactured from vacuum-degassed bars, precision ground raceways, and SUS316 balls. The result is a bearing that operates reliably in seawater, chemical processing, food and beverage production, and pharmaceutical environments where standard bearing steel would fail.

Application Fit

These bearings are specified by plant engineers and project managers in industries that demand both corrosion resistance and precision rotation:

• Marine and offshore equipment – rudder systems, winches, deck machinery
• Chemical and petrochemical pumps, valves, and mixers
• Food and beverage processing – conveyors, filling machines, washdown areas
• Medical devices – surgical instruments, diagnostic equipment, dental handpieces
• Semiconductor manufacturing – wafer handling, cleanroom robotics
• Precision instruments and aerospace actuators

Engineering and Customization Support

As a National High-Tech Enterprise, we hold multiple patents and have a dedicated R&D team. We support OEM/ODM projects from drawing to mass production. If your application requires a non-standard bore, width, flange, or special seal material, we can design and manufacture a custom bearing. Our engineers work with you to optimize internal clearance, cage type, and lubrication for your specific operating conditions.

Quality Assurance and Compliance

Our factory operates under IATF 16949, RoHS, CE, and SGS certifications. Every batch undergoes dimensional, noise, vibration, and corrosion resistance testing. We use high-precision inspection equipment to verify radial runout, axial runout, and surface finish. Traceability is maintained from raw material to finished product, ensuring consistent quality for critical applications.

Information We Use to Configure Your Solution

To prepare an accurate quotation and engineering proposal, we need the following from your project team:

• Bearing dimensions: bore, outer diameter, width (or reference series)
• Operating loads: radial, axial, and combined
• Speed range and duty cycle
• Environmental conditions: temperature, humidity, chemical exposure, washdown frequency
• Required precision class (ABEC-1, ABEC-3, ABEC-5, etc.)
• Sealing and lubrication preferences
• Any applicable industry standards or customer-specific test requirements

With this data, we can recommend the correct series, internal clearance, cage material, and seal type. For custom projects, we provide prototype samples and full test reports before mass production.

Frequently Asked Questions

What is the difference between SUS316 and SUS304 bearings?

SUS316 contains molybdenum, which significantly improves resistance to chlorides and acids. It is also more non-magnetic after cold working. For marine or chemical exposure, SUS316 is the preferred choice; SUS304 is adequate for general humidity and mild corrosive conditions.

Can you supply non-standard sizes or custom flanges?

Yes. We specialize in custom non-standard bearings. Provide your drawing or dimensions, and our R&D team will design and manufacture the bearing, including flanged versions, special seals, and unique bore shapes.

What is the typical lead time for SUS316 bearing orders?

Standard sizes are often in stock and ship within 7–15 days. Custom bearings typically require 20–30 days for tooling and production, depending on complexity. We confirm exact lead times with each quotation.

Do you provide test reports or material certifications?

Yes. We provide material certificates, dimensional inspection reports, and noise/vibration test data. SGS test reports are available for specific batches upon request.

Are these bearings suitable for food processing washdown environments?

Absolutely. SUS316 bearings with food-grade seals and grease are ideal for washdown zones. They withstand high-pressure cleaning and common sanitizing chemicals without corrosion.