7014 CE/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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7014 CE/P4AQBCA Bearing Product Overview & Core Advantages
The 7014 CE/P4AQBCA is a super-precision angular contact ball bearing designed for the most demanding applications. This bearing is supplied as a Quadruplex Back-to-Back (QBC) matched set, delivering exceptional system rigidity and the ability to handle complex combined loads from multiple directions. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy, making it ideal for high-speed spindles and other precision machinery requiring maximum performance and reliability.
7014 CE/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7014 CE/P4AQBCA provides detailed technical specifications:
- 7014: Basic bearing series, with a 70 mm bore and 110 mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high-speed operation.
- E: Indicates optimized internal geometry (e.g., ball size and quantity) for enhanced performance.
- P4A: Specifies the tolerance class, representing ultra-high precision for both dimensional and running accuracy.
- QBCA: Defines the matched arrangement.
- Q: Quadruplex (set of 4 bearings).
- BC: Back-to-Back mounting arrangement.
- A: Extra light preload applied to the set.
7014 CE/P4AQBCA Bearing Structural Features & Performance Benefits
The design of the 7014 CE/P4AQBCA delivers distinct performance advantages:
- Exceptional Rigidity & Load Capacity: The Quadruplex Back-to-Back (QBC) arrangement creates an extremely rigid bearing system, capable of withstanding heavy combined radial and axial loads and resisting moment loads effectively.
- Super-Precision Operation: Compliance with the P4A tolerance class ensures minimal runout and vibration, which is critical for achieving high surface finish quality and positioning accuracy.
- High-Speed Capability: The 15° contact angle and lightweight phenolic resin cage are engineered for stable operation at high rotational speeds, with a limiting speed of 27,000 rpm.
- Optimized Internal Design: The specified ball diameter and quantity (25 balls) are calculated to maximize the dynamic load rating (14,040 lbf) and service life.
7014 CE/P4AQBCA Bearing Typical Application Areas
This high-precision bearing set is engineered for advanced machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation systems.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
