7012 FE/HCPA9ADBAGMM3
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7012 FE/HCPA9ADBAGMM3
Basic Information
System of measurement
Metric
Weight
0.78 kg
Tolerance class
PA9A
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
18 °
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
35 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
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
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7012 FE/HCPA9ADBAGMM3 Bearing Product Overview & Core Advantages
The 7012 FE/HCPA9ADBAGMM3 is a precision duplex pair of Angular Contact Ball Bearings configured in a Back-to-Back (DB) arrangement. This high-performance set is engineered to handle combined loads, providing exceptional support for complex radial and axial forces. Its defining characteristics include an Extra Light (Class A) preload for minimal runout and high rotational accuracy, a ceramic ball and phenolic cage construction optimized for high-speed operation, and a PA9A tolerance class ensuring superior dimensional and running accuracy. This combination delivers outstanding high rigidity and operational stability, making it ideal for demanding, high-precision applications.
7012 FE/HCPA9ADBAGMM3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing series, with a 60 mm bore and 95 mm outside diameter. |
| FE | Indicates a duplex pair of bearings. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for reduced friction and higher speed capability. |
| PA9A | The tolerance class, denoting very high precision for both dimensional and running accuracy. |
| DB | Duplex Back-to-Back arrangement. This configuration provides high moment rigidity. |
| AGMM3 | Specifies the grease lubrication type and fill quantity. |
7012 FE/HCPA9ADBAGMM3 Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The Back-to-Back (DB) duplex arrangement creates a wide, stable support base, significantly increasing the bearing set's resistance to moment loads and providing high rigidity for precise shaft positioning.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic cage reduces centrifugal forces and friction, enabling a high limiting speed of 35,000 rpm. This makes it an exceptional high-speed bearing.
- Precision & Accuracy: Manufactured to PA9A tolerance class with an Extra Light preload, this bearing set guarantees minimal axial and radial runout, which is critical for applications requiring extreme rotational accuracy.
- Optimized Load Handling: With a 15° contact angle, the bearing is designed to support substantial combined loads, effectively managing both radial and axial forces simultaneously.
- Reduced Maintenance: The bearings are pre-lubricated with a specific grease (AGMM3) suitable for the specified temperature range, ensuring long-term, reliable performance.
7012 FE/HCPA9ADBAGMM3 Bearing Typical Application Areas
This precision angular contact ball bearing set is ideally suited for high-performance machinery where speed, accuracy, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Spindles: In PCB drilling, semiconductor manufacturing, and other high-accuracy processes.
- High-Frequency Motors: Where low friction and high rotational speeds are required.
- Advanced Robotics: For joint and arm articulation requiring high moment stiffness.
- Aerospace & Defense Systems: In gyroscopes, radar systems, and other critical rotating assemblies.
