7014 ACD/PA9AQBCC
7000 Series Super Precision Angular Contact Ball Bearings
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7014 ACD/PA9AQBCC Bearing Product Overview & Core Advantages
The 7014 ACD/PA9AQBCC is a precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and load capacity. This matched set arrangement of four bearings in a back-to-back configuration provides superior stability and can accommodate combined radial and axial loads simultaneously. Manufactured to an ultra-precise PA9A tolerance class, it ensures high running accuracy and is pre-lubricated for immediate use, making it ideal for high-performance machinery where reliability is critical.
7014 ACD/PA9AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing designation indicating a 70mm bore, 110mm OD, and 20mm width per single bearing. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Indicates a Moderate Preload (Class C) applied for enhanced rigidity. |
| PA9A | Specifies an ultra-high precision tolerance class for exceptional running accuracy. |
| QBCC | Denotes a Quadruplex Back-to-Back (QBC) matched set of 4 bearings. |
7014 ACD/PA9AQBCC Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates an extremely rigid bearing system, capable of handling high combined loads and resisting moment loads effectively. The 25° contact angle is optimized for significant axial load support in both directions.
High-Speed Capability: The lightweight phenolic cage minimizes centrifugal forces, contributing to the bearing's high limiting speed of 29,000 rpm. This makes it suitable for high-speed spindle applications.
Precision Performance: Manufactured from high-grade chrome steel and held to the stringent PA9A tolerance class, this bearing guarantees minimal runout and vibration for superior operational smoothness and accuracy.
Optimized Design: With 19 precision balls of 12.7mm diameter, the bearing achieves an excellent balance between load rating and high-speed performance.
7014 ACD/PA9AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is engineered for the most demanding industrial applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Where high torque and minimal deflection are required.
- Industrial Pumps and Compressors: For handling significant axial and radial forces.
- Robotic and Automation Systems: Particularly in high-accuracy rotary joints and actuators.
