7012 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7012 CE/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.78 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
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
5738 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7012 CE/HCP4ADT Bearing Product Overview & Core Advantages
The 7012 CE/HCP4ADT is a precision angular contact ball bearing supplied as a matched duplex tandem (DT) set. Engineered for exceptional performance in demanding applications, this bearing is preloaded and manufactured to P4A super-precision tolerance. Its defining characteristic is the ability to handle high combined loads, particularly excelling under thrust loads in one direction due to the tandem arrangement. The use of ceramic balls and a phenolic cage enables superior high-speed performance and reduced rotational mass, making it an ideal solution for high-rigidity, high-RPM spindles and machinery.
Model Code Breakdown
| Suffix Code | Technical Meaning |
|---|---|
| CE | Indicates a 15° contact angle, optimized for high-speed applications requiring high rigidity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce friction, heat generation, and allow for higher limiting speeds. |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7 standards, ensuring minimal runout and extreme rotational accuracy. |
| DT | Identifies the Duplex Tandem arrangement. Two bearings are matched to share thrust loads in the same direction, significantly increasing axial load capacity. |
7012 CE/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem arrangement and 15° contact angle provide a very stiff bearing system capable of withstanding heavy combined radial and axial loads. The preload eliminates internal clearance, enhancing system stability.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage minimizes centrifugal forces and ensures stable operation at the high limiting speed of 34,000 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance with tight dimensional control on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy for critical applications.
- Optimized for Performance: The open seal type allows for optimal lubrication management in controlled environments, minimizing torque and friction for peak efficiency.
7012 CE/HCP4ADT Bearing Typical Application Areas
This precision angular contact ball bearing is specifically designed for high-performance machinery where speed, accuracy, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- High-Frequency Spindles: PCB drilling and routing machines.
- Precision Instrumentation: Advanced measuring and testing equipment.
- Turbochargers and other high-RPM automotive/aerospace systems.
