Wholesale Deep Groove Ball Bearing Manufacturer
Shanghai Yinin Bearing & Transmission Company is a wholesale Deep Groove Ball Bearing manufacturer and supplier based in China. Since 1999, we have evolved from exporting domestic brand bearings into an integrated group with our own manufacturing facilities, including Jiangsu Dahua Bearing Manufacturing Co., Ltd. Our deep groove ball bearing range covers the most widely used series in industrial machinery, electric motors, automotive components, and precision equipment.
We supply in chrome steel and stainless steel, with open, shielded, or sealed configurations. Our engineering team works directly with you to match bearing series, internal clearance, cage type, and lubrication to your specific load, speed, and environmental conditions. With over 10,000 varieties and an annual production capacity of 8 million sets, we support both large-volume programs and small-batch custom requirements.
Our Deep Groove Ball Bearing Range
The following series are available as standard products. Each series is defined by its bore diameter range and load capacity, making it easier to select the correct bearing for your application.
| Series |
Typical Bore Range |
Application Fit |
| 6000 Series |
10–100 mm |
General machinery, electric motors, pumps |
| 6200 Series |
10–110 mm |
Higher radial load capacity, gearboxes, conveyors |
| 6300 Series |
10–130 mm |
Heavy-duty applications, larger shafts |
| 6400 Series |
20–100 mm |
Very heavy radial loads, industrial gearboxes |
| 6700, 6800, 6900 Series |
10–60 mm |
Compact designs, small motors, medical devices |
| 1600 Series |
10–50 mm |
Low friction, high-speed applications |
| R Series |
1.984–12.7 mm |
Miniature and instrument bearings |
Application Fit and Material Selection
Deep groove ball bearings are the most common rolling bearing type because they handle radial loads well and can accommodate moderate axial loads in both directions. Our range is used across agriculture, automotive, medical devices, home appliances, automation, construction, food and beverage, aerospace, transportation, mining, and new energy sectors.
Material choice is critical for service life. We supply bearings in high-carbon chrome steel (GCr15) for general use and stainless steel (AISI 440C or equivalent) for corrosive or washdown environments. For high-temperature or special applications, we can discuss alternative materials and heat treatments.
Critical Specifications and Configuration Options
Each bearing is defined by bore diameter, outer diameter, width, and internal design. We can supply in metric and inch sizes, with the following options:
- Seals and shields: open (no shield), metal shield (ZZ), rubber seal (2RS), or contact/non-contact seals depending on contamination and speed requirements.
- Cage type: pressed steel cage for standard applications, machined brass cage for higher speeds and temperatures, or polyamide cage for quiet running.
- Internal clearance: C0 (standard), C2, C3, or C4 to suit interference fits and thermal expansion.
- Precision grade: P0, P6, P5, or higher for applications requiring low vibration and accurate rotation.
- Lubrication: grease-filled for maintenance-free operation or oil lubrication for high-speed or high-temperature conditions.
Quality Assurance and Testing
We operate our own QC center and conduct inspections after each manufacturing process. Finished bearings are tested for dimensional accuracy, radial clearance, vibration, and noise according to international standards. For large orders, we can provide full inspection reports and, if required, third-party testing.
Our manufacturing facility is equipped with modern production lines and precision measuring instruments. We follow a strict quality management system to ensure consistency across batches, which is essential for OEM and aftermarket programs.
Engineering Support and Customization
We understand that standard catalogs do not always cover every requirement. Our technical team can assist with bearing selection, including calculating equivalent loads and verifying speed ratings. We also produce customized non-standard bearings for specific applications, such as special bore sizes, flanged outer rings, or modified internal geometry.
For prototype or low-volume needs, our minimum order quantity is as low as 100 sets. For production runs, we offer scheduled deliveries to match your assembly line. We also provide packaging options, including individual boxes, tubes, or bulk packing, with export-grade protection.
Information We Use to Configure Your Solution
To prepare an accurate quotation and technical proposal, we need the following details:
- Bearing series and dimensions (or a drawing/part number).
- Operating load (radial and axial) and speed (RPM).
- Ambient temperature, contamination level, and lubrication method.
- Required precision grade, internal clearance, and cage type.
- Material (chrome steel or stainless steel) and any special coating.
- Annual quantity and delivery schedule.
With this information, we can recommend the most cost-effective bearing configuration and provide a formal quotation. For standard series, we often have stock available and can ship within 3 working days.
Frequently Asked Questions
What is the difference between 6000 and 6200 series deep groove ball bearings?
The 6000 series is lighter and designed for moderate radial loads, while the 6200 series has a larger cross-section and can carry higher loads. For example, a 6205 bearing has a larger outer diameter and width than a 6005, providing greater load capacity at the same bore size.
Can you supply stainless steel deep groove ball bearings?
Yes, we offer stainless steel bearings in most series, including 6000, 6200, 6300, and miniature sizes. These are suitable for corrosive environments, food processing, and medical equipment where rust resistance is critical.
What is your minimum order quantity for deep groove ball bearings?
Our standard MOQ is 100 sets for many series, which is ideal for prototyping or small-batch production. For less common sizes or custom specifications, we can discuss flexible quantities based on the manufacturing process.
Do you provide test reports or certifications with shipments?
Yes, we can provide material certificates, dimensional inspection reports, and vibration testing data. If your project requires third-party inspection, we can arrange that as well.
How do you ensure consistent quality across large orders?
We follow a strict QC system with inspections after each process, and finished bearings are tested according to international standards. Our manufacturing facility is equipped with precision measuring tools, and we maintain traceability from raw material to final product.
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