SUS316 Flange Bearings Manufacturers

SUS316 Flange Bearings – Corrosion-Resistant Precision for Demanding Environments

As a professional SUS316 Flange Bearings manufacturer and wholesale factory, Jiangsu Yinghong Transmission Technology Co., Ltd. (YHU) delivers high-precision flanged ball bearings machined from SUS316 austenitic stainless steel. Our range covers SF67, SF68, and SF69 series, engineered for applications where moisture, chemicals, and washdown conditions would compromise standard bearing steel.

Product Range and Positioning

We supply three primary SUS316 flanged bearing series, each designed for specific bore and flange configurations. These bearings combine the axial location benefits of a flanged outer ring with the corrosion resistance of molybdenum-bearing stainless steel.

All series are available with open, shielded (ZZ), or sealed (2RS) configurations. We also produce custom flange patterns and non-standard bore sizes to match existing housings.

Material and Performance Advantages

SUS316 (JIS G4303) is an austenitic stainless steel with 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. The molybdenum addition significantly improves pitting and crevice corrosion resistance compared to SUS304, making it the preferred choice for chloride-rich environments.

• Corrosion resistance: Withstands saltwater, acids, and alkaline washdown chemicals.
• Non-magnetic: Suitable for MRI rooms, electronic sensors, and magnetic-sensitive equipment.
• Temperature range: Operates from -253°C to 350°C with appropriate lubrication.
• Low noise and vibration: Our precision grinding and assembly processes achieve 20–25 dB noise levels.
• Long service life: Reduced wear in humid or corrosive conditions extends maintenance intervals.

We use SUS316 for both rings and balls, ensuring uniform corrosion resistance. For applications requiring even higher hardness, we can hybridize with ceramic balls – contact our engineering team for options.

Application Fit and Industry Use

Our SUS316 flanged bearings are designed for equipment that undergoes frequent washdown, operates in coastal or offshore environments, or processes food and pharmaceuticals. The flange eliminates the need for a separate housing, simplifying installation and reducing assembly cost.

• Food and beverage: Conveyor rollers, filling machines, washdown stations.
• Marine and offshore: Winches, deck equipment, navigation instruments.
• Medical and laboratory: Centrifuges, diagnostic equipment, surgical tools.
• Chemical processing: Pumps, mixers, valves where corrosive media is present.
• Semiconductor and electronics: Wafer handling, cleanroom conveyors.

We also serve the robotics and drone sectors where weight and corrosion resistance are critical. The flange mounting allows direct bolting to thin-wall frames without additional bearing housings.

Engineering and Customization Support

As a National High-Tech Enterprise, we combine Japanese precision manufacturing technology with automated production lines. Our R&D team supports OEM/ODM projects, from drawing review to prototype and mass production.

We can modify the following parameters to match your application:

• Bore diameter, outer diameter, and flange dimensions
• Flange hole pattern (square, triangular, or custom)
• Seal type: contact, non-contact, or special lip designs
• Lubrication: food-grade grease, low-temperature grease, or dry lubricant
• Preload and internal clearance (C2, C0, C3, C4)
• Ball material: SUS316, ceramic, or hybrid

For existing equipment, we offer failure analysis and bearing design optimization. Our goal is to extend service life and reduce downtime, not just supply a replacement part.

Quality Assurance and Testing

Every SUS316 flange bearing undergoes rigorous inspection before shipment. Our quality system is certified to IATF 16949, and we hold RoHS, CE, and SGS test reports for material and performance compliance.

• Dimensional accuracy: ABEC-1 to ABEC-5 tolerance classes available
• Noise and vibration testing: Anderon meter and vibration analyzer
• Sealing effectiveness: dust and water ingress tests
• Material verification: spectrochemical analysis for SUS316 composition
• Corrosion testing: salt spray and humidity chamber tests

We maintain full traceability from raw material batch to finished lot, ensuring consistent quality across high-volume orders.

Information We Use to Configure Your Solution

To prepare an accurate quotation and production plan, please provide the following details:

• Bearing series or reference number (e.g., SF67, SF68, SF69)
• Bore, outer diameter, and flange dimensions (or drawing)
• Operating speed, load, and temperature range
• Environmental conditions: moisture, chemicals, washdown frequency
• Required precision class and internal clearance
• Seal and lubrication preferences
• Annual volume and target delivery schedule

Our engineering team will review your application and recommend the most cost-effective configuration. We provide samples for validation before mass production.

Installation and Maintenance Considerations

Flanged bearings simplify mounting: align the flange holes with the housing, insert bolts, and torque to specification. Ensure the mounting surface is flat and free of burrs to avoid distorting the outer ring.

For sealed bearings, no relubrication is required during service life. For open or shielded versions, use a compatible grease and avoid over-lubrication, which can cause overheating. In washdown environments, consider a food-grade grease with high water resistance.

We provide installation and maintenance documentation with each shipment, including recommended torque values and lubrication intervals.

Packaging and Delivery

Bearings are individually wrapped in anti-corrosion paper and packed in export-grade cartons or wooden crates. We offer standard packaging for small orders and custom packaging for automated assembly lines. Delivery terms include EXW, FOB, CIF, and DDP, with reliable logistics partners for global shipping.

Related Product Lines

Our Stainless Steel Flanged Bearings range also includes SUS304, SUS420, SUS440, and specialty stainless steel options. For non-flanged applications, explore our SUS316 Stainless Steel Bearings. If you need a complete bearing solution, view our full Products catalog.

Frequently Asked Questions