7011 ACDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7011 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7011 ACDGA/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, making it ideal for high-speed spindle applications and precision machinery where uncompromising performance is critical.
7011 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Significance |
|---|---|---|
| AC | Angular Contact | Optimized for combined radial and axial loads |
| DGA | Universal Matchable (SU) with 2 bearings in set | Precision matched for optimal preload and stiffness |
| P4A | Super Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
7011 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: The 7011 ACDGA/P4A features phenolic resin cage that ensures smooth operation at high speeds while reducing friction and heat generation. The chrome steel rings and balls provide excellent wear resistance and dimensional stability under demanding conditions.
Superior Load Capacity: With a 25° contact angle, this bearing efficiently handles combined loads - substantial axial loads in one direction alongside radial loads. The extra light preload (Class A) ensures minimal deflection while maintaining optimal stiffness for precision applications.
High-Speed Performance: The phenolic cage and precision-ground components enable operation at limiting speeds up to 34,000 rpm, making it suitable for demanding spindle applications. The open design allows for efficient lubrication management in high-speed environments.
Universal Matching Capability: As a universal matchable bearing supplied in matched sets of 2, the 7011 ACDGA/P4A can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for stiffness and load capacity.
7011 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: Applications requiring extreme rotational accuracy
- Precision Instrumentation: Measuring equipment and laboratory instruments
- Robotic Systems: High-precision robotic arms and automation equipment
- Aerospace Components: Guidance systems and precision actuators
- Medical Equipment: High-speed dental handpieces and surgical tools
