Wholesale Double Row Angular Contact Ball Bearings

Double Row Angular Contact Ball Bearings – Factory-Direct Supply

Shanghai Yinin Bearing & Transmission Company is a China-based manufacturer and exporter of double row angular contact ball bearings, with over two decades of experience in the bearing industry. Our range covers 3000A, 5200, 5300, and QJ series, designed for applications that demand high radial and axial load capacity, rigidity, and compactness. We supply wholesale quantities to distributors, OEMs, and plant maintenance teams, backed by in-house manufacturing and quality control.

Our double row angular contact ball bearings are produced in chrome steel and stainless steel variants, with options for seals (2RS), shields (2Z), and custom non-standard sizes. We support projects from prototype to mass production, ensuring that each bearing meets the required performance and dimensional tolerances.

Product Range and Applications

We offer a comprehensive selection of double row angular contact ball bearings, each tailored for specific load and speed conditions. The table below outlines our main series and their typical uses.

Engineering and Customization

We understand that each application has unique requirements. Our engineering team can adjust internal clearance, cage material, and preload to suit your operating conditions. We also produce non-standard double row angular contact ball bearings based on drawings or samples, with short lead times for prototypes.

For high-speed or high-precision applications, we offer bearings with machined brass cages or polyamide cages, and we can supply with special tolerances (P5, P4) upon request. Our factory uses precision grinding and lapping processes to achieve consistent geometry and low noise levels.

Quality Assurance and Testing

Quality is embedded in every step of our production. We conduct inspections after each process, and finished bearings undergo 100% inspection for dimensions, noise, and vibration according to international standards. Our in-house laboratory is equipped with precision testing instruments to verify radial runout, axial runout, and contact angle.

We also perform life tests on sample bearings to ensure durability under load. Our quality management system aligns with ISO 9001 principles, and we can provide material certificates and inspection reports with each shipment.

Wholesale Supply and Logistics

As a wholesale double row angular contact ball bearings supplier, we support volume orders with competitive pricing and reliable delivery. Our warehouse in Jiangsu Province maintains stock for popular sizes, enabling quick dispatch within 3 working days for in-stock items. For custom orders, we provide clear production schedules and keep you informed throughout the manufacturing process.

We export to the United States, Europe, Asia, and other regions, with packaging designed to protect bearings during transit. We can also arrange drop-shipping to your customers or consolidate shipments with other bearing types from our range.

Information We Use to Configure Your Solution

To prepare an accurate quotation and technical proposal, we need the following details:

• Bearing series and size (e.g., 3200A, 5305, QJ204)
• Operating loads (radial, axial, and combined)
• Speed range and required accuracy class
• Lubrication type and method (grease, oil, etc.)
• Sealing/shielding preference (open, 2RS, 2Z)
• Operating temperature and environmental conditions
• Mounting arrangement and shaft/housing fits
• Required certifications or inspection documents
• Order quantity and target delivery date

With this information, we can recommend the most suitable bearing configuration and provide a detailed proposal, including drawings if needed.

Frequently Asked Questions

What is the difference between 5200 and 5300 series double row angular contact ball bearings?

The 5200 series has a contact angle of 30°, while the 5300 series has a 35° contact angle. The larger contact angle in the 5300 series provides higher axial load capacity but slightly lower speed capability. We can help you select the right series based on your load and speed requirements.

Can you supply double row angular contact ball bearings with stainless steel material?

Yes, we offer stainless steel (AISI 440C) double row angular contact ball bearings for corrosive environments. These are available in most standard series and can be customized with seals or shields.

What is the minimum order quantity for wholesale purchases?

Our minimum order quantity is typically 100 sets for standard sizes, but we can accommodate smaller trial orders for evaluation. For custom designs, we may require a higher MOQ depending on the complexity.

Do you provide technical support for bearing selection?

Absolutely. Our engineers can assist with bearing selection, calculation of bearing life, and fit recommendations. We can also provide installation and maintenance guidance to ensure optimal performance.

How do you ensure the quality of wholesale double row angular contact ball bearings?

We perform 100% inspection on finished bearings for key dimensions and noise, and we conduct sample testing for load and life. Our manufacturing processes are monitored, and we provide inspection reports with each shipment.