7214 CD/P4ADBA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7214 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7214 CD/P4ADBA is a metric precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set delivers superior performance in handling combined loads, including significant radial and axial loads in both directions. Manufactured to P4A tolerance class, it offers extremely tight dimensional control for high-precision spindle arrangements. The phenolic cage and optimized 15° contact angle contribute to its high-speed capability, making it an ideal choice for machine tool spindles and other high-performance machinery.
7214 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7214 | Basic bearing series, 70mm bore, 125mm OD, 48mm width |
| C | 15° contact angle design |
| D | Duplex (two bearings as a set) |
| P4A | High precision tolerance class (exceeds ABEC 7) |
| DB | Back-to-Back arrangement for maximum moment rigidity |
| A | Extra light preload for minimal friction at high speeds |
7214 CD/P4ADBA Bearing Structural Features & Performance Benefits
Superior Rigidity & Load Capacity: The duplex back-to-back configuration creates a highly rigid bearing system capable of withstanding heavy combined radial and axial loads from both directions. This arrangement provides excellent resistance to moment loads, ensuring stable operation under demanding conditions.
High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 28,000 rpm. The 15° contact angle provides an optimal balance between radial and axial load capacity while maintaining high-speed capability.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, this bearing ensures minimal runout and vibration for applications requiring exceptional rotational accuracy.
Material Excellence: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and long service life under demanding operating conditions.
7214 CD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: CNC machining equipment requiring extreme accuracy
- Precision Instrumentation: Measuring devices and laboratory equipment
- High-Performance Motors: Spindle motors and high-speed drives
- Aerospace Components: Guidance systems and precision mechanisms
