Double Row Angular Contact Ball Bearing 3307-a for CNC Machines & Automotive Transmissions

Product Specifications

Application Industries

Minimize Downtime with 3307-a Double Row Angular Contact Ball Bearing for CNC & Automotive Applications

Nothing halts production faster than unexpected bearing failure in critical equipment. CNC machine operators know the cost of spindle downtime—missed deadlines, idle labor, and rushed repairs. Automotive transmission manufacturers face similar risks when component reliability wavers. Sourcing bearings that balance precision, durability, and quick availability is a constant challenge in these high-stakes industries.

Precision Engineered 3307-a Bearings for Demanding Operations

Our Double Row Angular Contact Ball Bearing 3307-a addresses these pain points directly. Designed for the rigorous demands of CNC machines and automotive transmissions, this bearing combines high precision (available from P0 to P4 grades) with robust construction. As a professional bearing manufacturer with decades of export experience, we ensure each unit meets strict ISO standards, supporting both standard requirements and custom specifications to match your exact application needs.

Optimal Performance in High-Speed, Heavy-Load Environments

This Angular Contact Bearing excels in scenarios where both radial and axial loads are present—common in CNC spindle assemblies and automotive transmission systems. Its double row design provides enhanced rigidity and load-carrying capacity, while the separated structure allows for easy mounting and maintenance. Whether operating at high rotational speeds or under fluctuating loads, the 3307-a maintains stability, reducing vibration and extending equipment service life.

Key Technical Features That Drive Reliability

The performance of the 3307-a Angular Contact Ball Bearing stems from its critical technical attributes. Precision rating options (P0 to P4) ensure tight tolerances for minimal runout, crucial for CNC machining accuracy. Multiple cage materials—steel, copper, and nylon—offer flexibility: steel cages for high-temperature resilience, copper for superior heat dissipation, and nylon for reduced noise in quiet operation. Lubricated with high-quality oil grease, the bearing minimizes friction, supporting efficient power transmission in automotive transmissions and CNC drives.

Why Genuine Bearings Matter for Long-Term Cost Efficiency

Choosing genuine bearings over counterfeit alternatives avoids hidden costs. Inferior bearings often fail prematurely, leading to unplanned shutdowns and expensive repairs. Our 3307-a bearings, certified under ISO 9001:2015 and ISO 14001 standards, undergo rigorous testing—including dimensional inspection and performance validation—to ensure reliability. The result is lower total cost of ownership, as fewer replacements and less downtime offset the initial investment in quality.

Your Trusted Partner for Bearing Solutions

Packaging & Shipping

• Secure carton pallet packaging to prevent damage during transit
• Sample orders shipped within 3-5 working days; bulk orders within 5-15 working days
• Multiple logistics options including express, air, and sea freight
• Real-time tracking provided for all shipments
• Flexible order quantities: 1 piece MOQ for standard bearings, customized orders negotiable

Get Your 3307-a Bearing Shipped Today

Don’t let equipment downtime impact your productivity. Whether you need a single sample for testing or bulk orders for production, we’re ready to fulfill your requirements. Send us your specifications, and our team will confirm compatibility and provide a prompt quote—keeping your operations running smoothly.

Frequently Asked Questions