Wholesale Stainless Steel Ball Bearings – Shanghai Yinin Bearing & Transmission Company is a China-based manufacturer and supplier with over 20 years of experience in the bearing industry. Since 1999, we have evolved from an export agent for domestic bearing brands into an integrated group with our own manufacturing facilities, including Jiangsu Dahua Bearing Manufacturing Co., Ltd. Our product range covers ball bearings, roller bearings, automotive bearings, and special bearings in both chrome steel and stainless steel, serving industries such as agriculture, automotive, medical devices, home appliances, automation, construction, food & beverage, aerospace, transportation, mining, and new energy.
Our Product Range
We supply a comprehensive line of bearings to meet diverse application needs. Below is an overview of our main categories and their typical uses.
| Category |
Key Products |
Typical Applications |
| Ball Bearing |
Deep groove, miniature, angular contact, thrust, insert, pillow block, self-aligning, track roller, steel ball |
Electric motors, pumps, gearboxes, conveyors, agricultural machinery, household appliances |
| Roller Bearing |
Tapered, spherical, thrust spherical, needle, cylindrical (NU, NJ, NUP, N, NF), conveyor roller |
Heavy industrial gearboxes, mining equipment, construction machinery, conveyor systems |
| Automatic Transmission Bearings |
Spherical plain, ball joint rod ends, linear ball bearings |
Automotive transmissions, steering systems, robotics, linear motion guides |
| Automotive Bearing |
Hub units, tensioner & idler, wheel, clutch release, U-joint, water pump |
Passenger cars, commercial vehicles, off-highway vehicles |
Stainless Steel Ball Bearings: Application Fit
Stainless steel ball bearings are essential in environments where corrosion resistance, high temperature tolerance, and washdown are critical. Our stainless steel range includes deep groove, miniature, and angular contact types, available in 440C, 304, and 316 grades. These bearings are ideal for:
- Food & Beverage Processing: Resistant to frequent washdowns and cleaning chemicals.
- Marine and Offshore: Withstand saltwater exposure without rusting.
- Chemical and Pharmaceutical: Operate reliably in corrosive atmospheres.
- High-Temperature Equipment: Maintain dimensional stability and load capacity at elevated temperatures.
We also offer chrome steel bearings for general industrial use, ensuring you get the right material for your operating conditions.
Engineering and Customization
Our engineering team, comprising 12 technicians, supports custom bearing solutions. We can modify dimensions, materials, seals, shields, and lubricants to match your specific requirements. Whether you need a thin-wall bearing for a compact assembly or a non-standard bore size, we can design and manufacture accordingly.
For high-volume projects, our factory in Jiangsu Province has an annual production capacity of 8 million sets, with modern equipment and precision testing instruments. We perform inspections after each manufacturing process and conduct full inspections on finished products according to customer specifications and international standards.
Quality Assurance and Testing
Quality is the foundation of our operations. We have established a dedicated QC center and follow rigorous testing procedures. Our testing capabilities include:
- Dimensional accuracy checks using precision instruments.
- Noise and vibration testing for smooth operation.
- Material composition analysis to verify stainless steel grades.
- Load and fatigue testing to ensure durability.
We are committed to delivering bearings that meet or exceed industry standards, and we provide documentation upon request.
Information We Use to Configure Your Solution
To prepare an accurate quotation and configuration, we need the following details from you:
- Bearing type and series (e.g., 6205 deep groove, 6800 miniature).
- Dimensions – bore, outer diameter, width, or reference to an existing part number.
- Material – chrome steel (GCr15) or stainless steel (440C, 304, 316).
- Operating conditions – load, speed, temperature, environment (e.g., corrosive, wet).
- Precision class – ABEC-1, ABEC-3, ABEC-5, or custom.
- Seals/shields – open, metal shields (ZZ), rubber seals (2RS).
- Lubrication – grease type, oil, or dry.
- Quantity – annual or per-order volume.
- Packaging and delivery – export packaging, labeling, destination port.
With this information, we can provide a tailored solution that meets your technical and commercial requirements.
Why Choose Shanghai Yinin?
As a Wholesale Stainless Steel Ball Bearings manufacturer, we combine manufacturing expertise with export experience. Our strengths include:
- One-Stop Sourcing: Full product range from ball to roller bearings, reducing your supplier base.
- Small Batch Flexibility: Minimum order quantity can be as low as 100 sets for standard items.
- Fast Delivery: In-stock products ship within 3 working days.
- Technical Support: Our team assists with bearing selection and application engineering.
Frequently Asked Questions
What is the minimum order quantity for stainless steel ball bearings?
For standard sizes, our MOQ is 100 sets. For custom or non-standard bearings, MOQ may vary based on complexity and material. Contact us with your requirements for a specific quote.
Can you provide bearings with special dimensions or materials?
Yes, we specialize in custom bearings. We can manufacture non-standard sizes, use alternative stainless steel grades, or add special coatings. Provide your drawings or specifications, and our engineers will advise on feasibility.
How do you ensure the quality of your bearings?
We conduct inspections at every production stage and perform final inspection on all finished products. Our QC team uses precision instruments to verify dimensions, noise, and material properties. We can also provide test reports upon request.
What is your typical lead time for bulk orders?
For standard bearings in stock, we ship within 3 working days. For production orders, lead time depends on quantity and customization, typically 2-4 weeks. We will confirm exact delivery dates in our quotation.
Do you offer technical support for bearing selection?
Yes, our technical team can help you select the right bearing type, material, and configuration based on your application. We consider load, speed, temperature, and environmental factors to recommend the most suitable solution.
English
日本語
Français
Español
