Product Specifications
| Parameter |
Details |
| Model NO. |
Double Row Angular Contact Ball Bearing |
| Separated |
Separated |
| Rows Number |
Double |
| Load Direction |
Radial Bearing |
| Material |
Bearing Steel |
| Precision Rating |
P0, P2, P4, P5, P6 |
| Type |
Ball |
| Structure |
Angular Contact |
| Cage |
Steel Cage, Copper Cage, Nylon Cage |
| Lubrication |
Oil Grease |
| Transport Package |
Carton Pallet |
| Origin |
Jiangsu China |
Application Industries
| Industry |
Typical Equipment |
| Manufacturing |
CNC Machines, Machine Tools, Spindles |
| Automotive |
Transmission Systems, Gearboxes, Drivetrains |
| Industrial Machinery |
Printing Equipment, Reducers, Precision Mechanisms |
Eliminate Production Downtime with 3307 High Precision Angular Contact Ball Bearing
Equipment failure due to substandard bearings costs manufacturers thousands in lost productivity each year. When CNC machine spindles vibrate excessively or automotive transmissions fail prematurely, the root cause often traces back to imprecise bearings that can’t handle combined radial and axial loads. Sourcing reliable double row angular contact bearings with consistent quality and short lead times remains a challenge for maintenance managers and production planners.
Engineered for CNC Machines and Automotive Transmissions
Our Double Row Angular Contact Ball Bearing 3307 is designed to solve these critical issues. With precision ratings from P0 to P4 and noise grades up to Z4, this bearing delivers stable performance in high-speed CNC machining centers and automotive transmission systems. As a professional bearing manufacturer with decades of export experience, we ensure each unit meets ISO industrial standards through strict in-house testing, including dimensional accuracy checks and noise vibration analysis.
Optimized for High-Speed, Heavy-Load Applications
This double row angular contact bearing excels in applications requiring simultaneous radial and axial load handling. In CNC machine spindles operating at high rotational speeds, its angular contact design minimizes friction and heat buildup, while the steel, copper, or nylon cage options allow customization for specific speed and temperature requirements. Automotive transmission systems benefit from its robust construction, which withstands the cyclic loads and torque variations common in powertrain applications.
Key Technical Features That Maximize Performance
The precision rating directly impacts operational stability—P4 grade bearings reduce runout to less than 5μm, critical for maintaining CNC machining accuracy. The double row structure increases radial load capacity by up to 40% compared to single row designs, making it suitable for heavy-duty industrial equipment. Cage material selection plays a vital role: steel cages offer high temperature resistance up to 120°C, while nylon cages reduce noise levels in precision applications. Lubricated with high-performance grease, the bearing maintains optimal friction characteristics across a wide speed range.
Why Genuine Bearings Reduce Total Cost of Ownership
Counterfeit bearings may offer lower upfront prices, but they often fail within 30% of the expected service life, leading to unplanned downtime and costly repairs. Our 3307 High Precision Angular Contact Bearing undergoes rigorous incoming material inspection—using high-grade chrome steel—to ensure fatigue resistance and long service life. With ISO 9001:2015 certification, each bearing is traceable through our quality management system, eliminating the risk of substandard components entering your production line.
Our Commitment to Reliable Supply
With a production capacity of 1,000,000 units annually and flexible order policies, we support both small-batch maintenance needs and large-scale production requirements. Standard bearings are available with a 1-piece MOQ, and sample orders ship within 3-5 working days. Our technical team provides free guidance on bearing selection, installation, and maintenance, helping you avoid costly选型 mistakes. Backed by a 12-month warranty, we offer free replacements for qualified defective products, ensuring your operations run smoothly.
Packaging & Shipping
- Secure packaging in carton pallets to prevent damage during transit
- Sample orders dispatched within 3-5 working days
- Bulk orders delivered in 5-15 working days
- Multiple logistics options including express, air, and sea freight
- 1-piece MOQ for standard bearings, supporting emergency repairs
Get Your 3307 Bearing Shipped Today
Don’t let bearing-related downtime disrupt your production schedule. Whether you need a single replacement for a CNC machine or bulk quantities for automotive transmission assembly, we can fulfill your order quickly. Send us your application details, and our technical team will confirm the optimal configuration for your specific requirements.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our bearings are manufactured in our ISO 9001:2015 certified facility and come with complete traceability documentation.
Q: How do I confirm if the 3307 bearing fits my equipment?
A: Provide your equipment model or dimensional requirements (bore diameter, outer diameter, width), and our technical team will verify compatibility.
Q: What is the warranty period for this bearing?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects.
Q: What is the minimum order quantity?
A: Standard bearings have a 1-piece MOQ, with no MOQ for sample orders.
Q: How long does shipping take?
A: Sample orders ship in 3-5 working days; bulk orders take 5-15 working days depending on quantity.
Q: Can I request a specific cage material?
A: Yes, we offer steel, copper, and nylon cage options to meet your application requirements.
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