7012 ACD/P4ADFC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7012 ACD/P4ADFC
Basic Information
System of measurement
Metric
Weight
0.81 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14040 lbf
Radial static load rating
15075 lbf
Limiting speed
39 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7012 ACD/P4ADFC Bearing Product Overview & Core Advantages
The 7012 ACD/P4ADFC is a precision duplex angular contact ball bearing arranged in a Face-to-Face (DF) configuration. Engineered for applications demanding exceptional rotational accuracy and rigidity, this matched pair is preloaded to Moderate / Class C specifications, ensuring stable performance under complex loads. Its primary advantage lies in its ability to handle combined radial and axial loads simultaneously, making it an ideal choice for high-precision spindles and machinery where high rigidity and operational reliability are paramount.
7012 ACD/P4ADFC Bearing Model Code Explained, Specifications & Naming Convention
| 7012 | Basic bearing series, with a 60 mm bore diameter. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex (two bearings supplied as a matched set). |
| P4A | Indicates a high-precision tolerance class, exceeding normal ABEC-7 standards for superior running accuracy. |
| DF | Specifies the Face-to-Face mounting arrangement of the duplex pair. |
| C | Denotes the Moderate preload level applied to the matched set. |
7012 ACD/P4ADFC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex DF arrangement and moderate preload work in concert to create an exceptionally rigid bearing system, minimizing axial and radial deflection under load for superior machining accuracy.
- Superior Load Capacity: With a 25° contact angle and robust construction featuring 19 balls, this bearing is optimized to support significant combined radial and axial loads.
- Precision High-Speed Operation: The P4A tolerance class ensures minimal runout and vibration. The lightweight phenolic cage and factory-applied lubrication contribute to stable performance at the high limiting speed of 39,000 rpm.
- Optimized for Precision: Manufactured from chrome steel and held to strict dimensional tolerances, this bearing guarantees consistent, high-accuracy performance in demanding applications.
7012 ACD/P4ADFC Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-Frequency Motors
- Precision Rotary Tables
- Industrial Pumps and Compressors
- Other machinery requiring high-speed, high-rigidity rotational support.
