Stainless Steel Bearings Manufacturers

As a professional Stainless Steel Bearings manufacturer, Jiangsu Yinghong Transmission Technology Co., Ltd. (YHU) supplies corrosion-resistant deep groove ball bearings engineered for moisture, chemical, and washdown environments. Our range covers SUS420, SUS440, SUS304, SUS316 and special stainless steel grades, available open, shielded, or sealed, in metric and inch series. We support OEM and ODM projects across electric motors, food processing, medical devices, marine equipment, semiconductor tools, and robotics.

Our Stainless Steel Bearing Range

We manufacture five stainless steel families under one roof, each matched to a specific balance of hardness, corrosion resistance, and magnetic behavior. The table below summarizes the material grades we offer and where they fit.

Range Highlights

• SUS420 and SUS440 are martensitic grades that can be hardened to HRC 50–58, giving them the load capacity needed for high-speed rotating equipment.
• SUS304 and SUS316 are austenitic, non-magnetic, and offer the best corrosion resistance for food, medical, and marine environments.
• Special stainless steels cover niche requirements such as low-temperature toughness, high-temperature stability, or enhanced chemical resistance.

Engineering and Manufacturing Capabilities

Our factory in Jiangsu, China, spans over 15,000 square meters and runs automated production lines based on Japanese precision manufacturing technology. We control the entire process from raw material inspection to final assembly, ensuring consistent geometry, low noise, and long service life. As a National High-Tech Enterprise, we hold multiple patents and have passed IATF 16949, RoHS, CE, and SGS certifications.

We produce stainless steel bearings with operating noise as low as 20–25 dB and temperature resistance from -253°C to 350°C, depending on material and heat treatment. Our quality system includes high-precision testing equipment for dimensional accuracy, vibration, noise, sealing, and corrosion resistance.

Configuration and Customization

Beyond standard open bearings, we supply shielded (ZZ) and sealed (2RS) versions, with options for flanged outer rings, snap rings, and custom lubrication. We also produce non-standard stainless steel bearings to customer drawings, including special bore sizes, widths, and materials.

• Seals and shields: Choose from metal shields, rubber seals, or Teflon seals based on contamination and speed requirements.
• Flanged versions: Available for axial location without a shoulder, ideal for compact assemblies.
• Custom materials: We can substitute balls, cages, or rings with alternative stainless grades or hybrid ceramic balls.
• Lubrication: Grease type and fill quantity are selected for your operating temperature and speed.

Quality Assurance and Acceptance Testing

Every stainless steel bearing lot undergoes dimensional, noise, and vibration testing before shipment. We follow a closed-loop quality management system from incoming raw material to finished goods. Our certifications—IATF 16949 for automotive, RoHS for hazardous substances, CE for European compliance, and SGS for third-party verification—support your own quality audits and regulatory filings.

We can provide material certificates, test reports, and traceability documentation upon request. For critical applications, we offer additional inspections such as salt spray testing, radial clearance measurement, and high-speed run-in checks.

Integration and Installation Support

We understand that bearing selection affects your assembly line and end-product reliability. Our engineering team works with your drawings to confirm fit, clearance, and preload. We provide installation guidance, recommended shaft and housing tolerances, and lubrication schedules. For volume orders, we offer packaging options including anti-rust oil, individual wrapping, and export-grade cartons.

Our after-sales support includes failure analysis and technical troubleshooting. If a bearing does not perform as expected, we analyze the root cause and recommend corrective actions—whether it is a material change, seal upgrade, or design modification.

Information We Use to Configure Your Solution

To prepare a precise quotation and manufacturing plan, we need the following project details:

• Bearing dimensions (bore, outer diameter, width) or a reference part number
• Operating load (radial, axial, or combined) and speed (RPM)
• Environmental conditions: temperature, humidity, chemical exposure, washdown frequency
• Required precision class (e.g., ABEC-1, ABEC-3, ABEC-5) and clearance (C2, C0, C3)
• Sealing preference: open, shielded, sealed, or flanged
• Lubrication type and any special requirements (food-grade, low-temperature, etc.)
• Expected annual volume and target delivery schedule

Frequently Asked Questions

What is the difference between SUS420 and SUS440 stainless steel bearings?

SUS420 offers good hardness and moderate corrosion resistance, while SUS440 provides higher hardness and wear resistance. Both are martensitic and magnetic. Choose SUS440 for high-load, high-speed applications; choose SUS420 when cost is a factor and corrosion exposure is mild.

Are SUS304 and SUS316 bearings non-magnetic?

Yes, both are austenitic and essentially non-magnetic in the annealed condition. SUS316 offers superior resistance to chlorides and pitting, making it ideal for marine and chemical environments. SUS304 is more economical for general food and washdown applications.

Can you produce custom stainless steel bearings to our drawings?

Absolutely. We specialize in custom non-standard bearings. Send us your drawing or sample, and we will design the bearing, select the appropriate stainless grade, and produce prototypes before mass production. Our engineering team supports material, seal, and cage modifications.

What certifications do your stainless steel bearings meet?

Our factory is IATF 16949 certified, and our products comply with RoHS and CE requirements. We also provide SGS test reports for material and performance verification. These certifications support automotive, medical, and export applications.

What is the minimum order quantity for standard stainless steel bearings?

For standard sizes, we can accommodate small trial orders and scale up based on your volume. For custom designs, we typically require a prototype fee and a minimum quantity for production runs. Contact us with your requirements for a specific MOQ.

Related Products and Categories

Our portfolio also includes Products, Deep Groove Ball Bearings, Bearing Steel Bearings for applications with different operating ranges, interfaces or integration requirements.