7012 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7012 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.4 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
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
19
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9068 lbf
Radial static load rating
7762 lbf
Limiting speed
22 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:
$ 123.38
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7012 CD/P4A Bearing Product Overview & Core Advantages
The 7012 CD/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to primarily accommodate combined loads (radial and axial loads in one direction), its optimized internal geometry and P4 (ABEC-7) super-precision tolerance class ensure smooth, quiet operation at high speeds. The bearing is preloaded, enhancing system stiffness and minimizing axial and radial runout, making it ideal for demanding, high-reliability machinery.
7012 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed applications with moderate axial load capacity. |
| D | High Load Capacity Internal Design | Features optimized raceway geometry and larger ball diameter for increased dynamic and static load ratings. |
| P4 | Tolerance Class (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for superior performance in precision applications. |
| A | Preload Level | Specifies a light preload, which increases bearing rigidity and minimizes deflection under load. |
7012 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The combination of a 15° contact angle, phenolic resin cage, and a defined preload (suffix A) provides high system stiffness and minimizes runout, essential for maintaining accuracy under load.
- Superior Load Capacity: The "D" internal design, featuring a larger ball diameter (11.112 mm) and a full complement of 19 balls, results in high radial dynamic (9068 lbf) and static (7762 lbf) load ratings, enabling it to handle significant combined loads.
- Optimized High-Speed Performance: The lightweight and robust phenolic cage ensures cage stability and low friction, contributing to a high limiting speed of 22,000 rpm. The open design allows for efficient lubrication management.
- Precision-Grade Materials: Manufactured from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and long-term dimensional stability.
7012 CD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-speed, high-precision machinery where rigidity and accuracy are paramount. Key applications include:
- Machine Tool Spindles (milling, grinding)
- High-Frequency Motors
- Precision Gearboxes
- Aerospace Control Systems
- Medical and Laboratory Equipment
