S7011 ACE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7011 ACE/P4ADBB Bearing Product Overview & Core Advantages
The S7011 ACE/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class with a light preload (Class B), it ensures smooth, high-precision operation in demanding environments. Its compact design and high load capacity make it an ideal solution for high-performance machinery.
S7011 ACE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing series and size designation. |
| ACE | Specific internal design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class for superior running accuracy. |
| DBB | Specifies a Duplex Back-to-Back matched arrangement for high rigidity. |
S7011 ACE/P4ADBB Bearing Structural Features & Performance Benefits
This bearing's performance is derived from its meticulous construction:
- High Rigidity & Stability: The back-to-back (DB) duplex arrangement creates a wide effective spread, significantly increasing system rigidity and moment load capacity, which is critical for maintaining precision under heavy loads.
- Superior Load Capacity: The 25° contact angle and optimized internal geometry enable it to handle significant combined radial and axial loads simultaneously.
- Precision & High-Speed Capability: Built to P4A tolerance class with a phenolic resin cage, it ensures smooth operation, low vibration, and is suitable for high-speed applications up to 34,000 rpm.
- Ready-to-Install & Sealed: The bearing is pre-lubricated with grease and sealed, protecting it from contamination and providing long-term, maintenance-free service within a temperature range of -30°C to 110°C.
S7011 ACE/P4ADBB Bearing Typical Application Areas
The S7011 ACE/P4ADBB is engineered for high-precision and high-rigidity applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
