7214 ACD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7214 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7214 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-lubricated set of two, it is engineered to accommodate combined loads—simultaneously handling significant radial loads and axial loads in one direction. Its P4A tolerance class and extra light preload (Class A) ensure superior running accuracy and smooth operation, making it ideal for high-precision, high-rigidity systems. The open design, combined with a phenolic cage, supports high-speed performance up to 28,000 rpm.
7214 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| P4A | Indicates high precision tolerance class (P4A), ensuring minimal runout and superior dimensional stability. |
| DGA | Universal Matchable (SU) designation; supplied as a set of two bearings (matched set) for simplified mounting and optimal preload. |
7214 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design provides enhanced rigidity, enabling the bearing to support substantial combined radial and axial loads. With a dynamic load rating of 24,300 lbf and static load rating of 24,750 lbf, it delivers reliable performance under demanding conditions.
High-Speed Capability: The phenolic cage reduces centrifugal forces and friction, contributing to a high limiting speed of 28,000 rpm. The optimized internal geometry and 25° contact angle further enhance high-speed stability.
Precision & Durability: Manufactured from chrome steel for both rings and balls, the bearing offers high wear resistance and long service life. The P4A tolerance and tight dimensional controls (bore and OD tolerance: -0.004mm to 0) ensure consistent, precise operation in critical applications.
Universal Matchable Design: As an SU universal matchable bearing set, it simplifies installation and maintains preload accuracy when mounted in a back-to-back or face-to-face arrangement, reducing assembly time and cost.
7214 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: For high-precision milling, grinding, and turning centers requiring rigidity and accuracy.
- High-Speed Machining Centers: Where combined loads and high rotational speeds are critical.
- Precision Instrumentation: Used in measuring devices and optical equipment demanding minimal runout.
- Industrial Pumps & Compressors: For handling axial and radial loads in fluid and air movement systems.
- Robotic Actuators & Automation Systems: Providing precise motion control and high load capacity in compact designs.
