7012 ACB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7012 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.45 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.747 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
2565 lbf
Limiting speed
26 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 417.23
/ each
In Stock
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7012 ACB/P4A Bearing Product Overview & Core Advantages
The 7012 ACB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it delivers superior running precision. Its key advantage lies in its ability to support combined loads—simultaneously handling significant radial and axial loads in one direction. This makes it an ideal, compact solution for high-speed spindles and other high-precision machinery where space constraints and performance are critical.
7012 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Standard bearing series designation, indicating a 60 mm bore, 95 mm OD, and 18 mm width. |
| ACB | Signifies a specific contact angle of 25° and a specific internal design for optimal load distribution. |
| P4A | Denotes a high-precision tolerance class equivalent to ABEC-7. The "A" suffix indicates specific accuracy requirements for the bore and outside diameter. |
7012 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle provides high rigidity, enabling the bearing to efficiently support combined radial and axial loads.
- Precision Performance: Manufactured to P4 tolerance standards, it ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Optimized for High Speeds: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 26,000 rpm.
- Preload Availability: The bearing is supplied with a preload, which increases system stiffness, reduces deflection under load, and enhances positional accuracy.
- Durable Construction: Made from chrome steel for both rings and balls, it offers excellent wear resistance and long service life.
7012 ACB/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Robotic Drives and Actuators
