S7012 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7012 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S7012 ACD/P4ADGA is a precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it is ideally suited for high-speed spindles and other precision machinery. Its double row design enables it to support substantial combined loads—simultaneously handling radial loads and bidirectional axial loads. The extra light preload (Class A) ensures smooth, quiet operation with minimal running torque, while the sealed construction with pre-applied grease offers long-term, maintenance-free performance.
S7012 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Series designation for a high-precision angular contact ball bearing. |
| ACD | Angular Contact, Double Row design. |
| P4A | Indicates a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards for runout and dimensional accuracy. |
| DGA | Signifies the bearing is sealed on both sides and comes pre-lubricated with grease. |
S7012 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact configuration and 25° contact angle provide superior rigidity and enable the bearing to handle significant combined radial and axial loads from both directions.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and is optimized for high-speed operation up to 32,500 rpm.
- Long Service Life & Maintenance-Free Operation: The integral seals protect against contamination, and the factory-applied grease lubrication is suitable for a wide temperature range of -30°C to 110°C, ensuring reliable, long-term performance without re-lubrication.
- Universal Matchable (SU): This bearing is universally matchable, allowing two bearings to be paired in a back-to-back (DB) or face-to-face (DF) arrangement without the need for selective mounting, simplifying installation and optimizing system performance.
S7012 ACD/P4ADGA Bearing Typical Application Areas
The S7012 ACD/P4ADGA is engineered for the most demanding applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
