Custom Angular Contact Ball Bearings Manufacturer
Shanghai Yinin Bearing & Transmission Company is a custom angular contact ball bearings 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 enterprise covering design, production, sales, and service. Our range includes single row and double row angular contact ball bearings, available in chrome steel and stainless steel, engineered for applications that demand high precision, stiffness, and reliable operation under combined radial and axial loads.
We supply standard series as well as customized non-standard bearings for machine tool spindles, gearboxes, pumps, automotive components, aerospace actuators, and industrial automation. With a dedicated team of about 80 employees and 12 technicians, we focus on delivering consistent quality through rigorous process control and full inspection according to customer requirements and international standards.
Explore our Angular Contact Ball Bearings range to find the right configuration for your application.
Our Angular Contact Ball Bearing Range
Angular contact ball bearings are designed to support combined radial and axial loads, with the contact angle determining the axial load capacity and stiffness. We offer two main configurations to match different application requirements:
Single Row Angular Contact Ball Bearings
These bearings can accommodate axial loads in one direction and are typically mounted in pairs or sets to handle bidirectional thrust. Our series include 7000, 7200, 7300, and 7900, which are widely used in high-speed and high-precision applications such as machine tool spindles, gearboxes, and pumps.
Single Row Angular Contact Ball Bearings
Double Row Angular Contact Ball Bearings
Double row designs can handle axial loads in both directions and offer higher radial load capacity. Our range includes 3000A, 5200, 5300, and QJ series, often used in gearboxes, electric motors, and industrial machinery where space is limited but load capacity is critical.
Wholesale Double Row Angular Contact Ball Bearings Suppliers
Application Fit and Engineering Considerations
Selecting the correct angular contact ball bearing requires analysis of load direction, speed, stiffness, and operating environment. Our engineers work with you to define the right contact angle, cage type, and internal clearance for your specific working point.
Contact Angle Selection
- 15° (C): Suitable for high-speed applications with lower axial loads, reducing friction and heat generation.
- 25° (AC): Balanced for moderate axial loads and speed, common in general industrial applications.
- 40° (B): Provides higher axial load capacity and stiffness, ideal for heavy-duty applications like machine tool spindles.
We also consider pairing arrangements for single row bearings—DB, DF, or DT—to achieve the required axial load direction and preload. For double row bearings, we offer open, shielded (2Z), or sealed (2RS) variants to suit contamination and lubrication requirements.
Critical Specifications and Performance
Our angular contact ball bearings are manufactured to precise dimensional tolerances and running accuracy, ensuring consistent performance in demanding applications. Key parameters we control include:
- Bore and outside diameter tolerances conforming to ISO and GB standards.
- Radial and axial internal clearance selected based on fit and operating temperature.
- Contact angle accuracy to maintain consistent load distribution.
- Surface finish of raceways for reduced friction and noise.
- Material quality using high-carbon chrome steel (GCr15) or stainless steel (AISI 440C) for corrosion resistance.
For high-speed applications, we offer precision grades such as P5 and P4, with appropriate cage designs like machined brass or polyamide to ensure stability and low inertia.
Quality Assurance and Testing
We implement inspection at each manufacturing stage, from incoming material to finished product. Completed bearings undergo full inspection according to customer requirements and international standards. Our testing includes dimensional measurement, vibration analysis, and noise testing to ensure reliable operation.
Our factory is equipped with modern production machinery and precision measuring instruments, allowing us to maintain tight control over quality. We are committed to delivering bearings that meet or exceed industry expectations.
Customization and Non-Standard Solutions
As a custom angular contact ball bearings manufacturer, we support modifications to standard designs to fit unique application requirements. Customization options include:
- Special bore or outside diameter dimensions
- Modified internal geometry for increased load capacity
- Alternative cage materials (steel, brass, PEEK)
- Custom seals or shields for harsh environments
- Non-standard tolerances and precision grades
- Specific preload or clearance settings
Our technical team works with you to develop a bearing that meets your exact performance and installation requirements.
Integration and Support
We provide engineering support to help integrate our bearings into your assembly. This includes guidance on shaft and housing fits, lubrication selection, and mounting procedures. For large projects, we can coordinate with your design team to ensure the bearing selection aligns with your system requirements.
Our sales and technical staff are available to answer questions and provide documentation, including product drawings and technical datasheets.
Information We Use to Configure Your Solution
To prepare an accurate proposal and configuration, we need the following details from you:
| Parameter |
Description |
| Operating loads |
Radial and axial forces, direction, and magnitude |
| Speed |
Rotational speed (RPM) and duty cycle |
| Shaft and housing dimensions |
Bore size, outside diameter, width, and fits |
| Operating environment |
Temperature, contamination, lubrication type |
| Precision requirement |
Desired tolerance class (e.g., P0, P6, P5) |
| Quantity and packaging |
Annual volume, packaging preference, delivery schedule |
Provide these details via our contact form or email, and we will respond within 12 hours on working days with a tailored solution.
Frequently Asked Questions
What is the difference between single row and double row angular contact ball bearings?
Single row bearings support axial loads in one direction and are often used in pairs for bidirectional loads. Double row bearings can handle axial loads in both directions and provide higher radial load capacity in a more compact design.
Can you manufacture custom angular contact ball bearings to non-standard dimensions?
Yes, we specialize in custom and non-standard bearings. We can modify bore, outside diameter, width, and internal geometry to meet your specific requirements. Provide your drawings or specifications, and we will evaluate feasibility.
What materials are available for angular contact ball bearings?
We offer bearings in chrome steel (GCr15) for general applications and stainless steel (AISI 440C) for corrosion-resistant environments. Other materials can be considered for special applications.
How do you ensure the quality of your bearings?
We conduct inspections after each manufacturing process and perform full inspections on finished products according to customer requirements and international standards. Our testing includes dimensional, vibration, and noise checks.
What is your minimum order quantity?
Our minimum order quantity can be as low as 100 sets for standard products, making it convenient for prototyping and small-batch production.
How quickly can you ship in-stock bearings?
For in-stock products, we can ship within 3 working days. Custom orders require additional time for production and inspection.
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