7011 ACD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7011 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7011 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-lubricated pair, it excels at handling combined radial and axial loads simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure smooth, quiet operation with minimal runout, making it ideal for high-speed, high-precision machinery where reliability is paramount.
7011 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high axial load capacity. |
| P4A | Indicates high precision tolerance class (superior to ABEC 7), ensuring minimal dimensional variation for precise shaft positioning. |
| DGA | Specifies universal matchable (SU) pairing with extra light preload (Class A), allowing flexible mounting configurations without performance loss. |
7011 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides excellent resistance to combined loads. The universal matchable pairing enables back-to-back (DB) or face-to-face (DF) mounting, creating a rigid bearing system that effectively manages complex load conditions.
Precision & High-Speed Performance: Manufactured to P4A tolerance standards with a phenolic cage, this bearing ensures stable operation at high rotational speeds (up to 34,000 rpm). The extra light preload minimizes friction and heat generation, contributing to superior high-speed capability.
Optimized Material & Lubrication: Constructed from chrome steel for both rings and balls, the bearing offers high durability and wear resistance. The pre-applied lubrication ensures immediate operational readiness and reliable performance within a temperature range of -30°C to 110°C.
7011 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring minimal deflection.
- High-Speed Motors & Spindles: Electric motors, CNC router spindles, and other high-RPM applications.
- Precision Instrumentation: Medical devices, optical scanners, and measuring equipment.
- Robotics & Automation: Joint and arm mechanisms where accuracy and rigidity are critical.
