7012 ACD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7012 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7012 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it offers superior running precision. Its 25° contact angle and universal matchable (SU) design enable it to accommodate combined radial and axial loads simultaneously. The bearing comes pre-lubricated and is characterized by its extra light preload (Class A), making it ideal for high-speed spindles and other precision machinery where minimal deflection and high rotational accuracy are critical.
7012 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7012 | Basic Bearing Series & Size | Indicates a metric series bearing with a 60mm bore, 95mm OD, and 36mm width. |
| AC | Angular Contact | Designed to support combined loads with a defined contact angle (25°). |
| D | High Contact Angle | Denotes a contact angle of 25°, optimized for higher axial load capacity. |
| P4A | Tolerance Class | Signifies a high-precision bearing with extremely tight dimensional and running accuracy tolerances. |
| GA | Universal Matchable (SU) | Indicates the bearing is supplied as one of a universally matchable pair (set of 2), allowing flexible mounting arrangements to achieve preload. |
7012 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance class with an extra light preload, this bearing provides exceptional rotational accuracy and system stiffness, minimizing runout and deflection under load.
Superior Load Capacity: The 25° contact angle design enables the bearing to efficiently handle significant combined radial and axial loads, making it suitable for complex loading conditions.
Optimized High-Speed Performance: The lightweight phenolic cage ensures stability and reduces centrifugal forces, contributing to a high limiting speed of 39,000 rpm. The open design facilitates efficient lubrication management.
Premium Material Construction: Components made from chrome steel for rings and balls ensure high durability, long service life, and consistent performance under the specified temperature range.
7012 ACD/P4ADGA Bearing Typical Application Areas
The 7012 ACD/P4ADGA is engineered for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Speed Precision Spindles for PCB drilling and routing
- Industrial Pumps and Compressors
- Precision Robotics and Automation Equipment
- Medical and Dental Equipment Spindles
