7214 ACDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7214 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7214 ACDGA/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior running accuracy. Manufactured to P4A tolerance class, this bearing is designed to accommodate high axial loads in one direction while simultaneously handling significant radial loads. Its extra light preload (Class A) ensures minimal deflection and smooth operation, making it ideal for high-speed spindles and precision machinery where rigidity and positional accuracy are critical. The bearing comes pre-lubricated and is part of a universally matchable (SU) set, allowing for flexible mounting configurations in complex arrangements.
7214 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loading |
| DGA | Contact Angle 25° | Enhanced axial load capacity and stiffness |
| P4A | High Precision Tolerance Class | Superior running accuracy and dimensional stability |
| Open | No Seal/Shield | Maximum speed capability with proper lubrication |
7214 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
Optimized Load Capacity: With a 25° contact angle and 16 chrome steel balls of 15.875mm diameter, this bearing delivers excellent axial load capacity (radial dynamic load rating: 14,918 lbf) while maintaining substantial radial load handling capability.
High-Speed Performance: The phenolic cage construction enables operation at limiting speeds up to 28,000 rpm, making it suitable for high-speed spindle applications where centrifugal forces are significant.
Thermal Stability: Operating temperature range of -30°C to 110°C ensures reliable performance across various environmental conditions, while the phenolic cage provides excellent dimensional stability under thermal variations.
Universal Matching Capability: As part of a universally matchable set (SU designation), these bearings can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for stiffness and load distribution.
7214 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring precision and rigidity
- Precision Robotics: Joint and arm applications demanding high positional accuracy
- Medical Equipment: High-speed dental handpieces and surgical tools
- Aerospace Systems: Guidance systems and flight control mechanisms
- High-Speed Motors: Spindle motors and precision electric drives
- Test & Measurement Equipment: Coordinate measuring machines and optical instruments
