7012 ACE/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7012 ACE/HCP4AH1
Basic Information
System of measurement
Metric
Weight
0.39 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
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3668 lbf
Radial static load rating
2745 lbf
Limiting speed
33 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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 ACE/HCP4AH1 Bearing Product Overview & Core Advantages
The 7012 ACE/HCP4AH1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single bearing features a 25° contact angle and is supplied with a preload, delivering superior running accuracy and high rigidity. Its construction with a phenolic cage and ceramic balls enables outstanding high-speed performance, making it ideal for machine tool spindles and other precision equipment.
7012 ACE/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | 25° contact angle and preloaded |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| H1 | Identifies a specific preload grouping within the matched set |
7012 ACE/HCP4AH1 Bearing Structural Features & Performance Benefits
- High Rigidity & Running Accuracy: The applied preload eliminates internal clearance, resulting in significantly increased stiffness and precise shaft positioning, which is critical for high-precision machining.
- Superior High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, allowing for a very high limiting speed of 33,000 rpm.
- Extended Service Life & Reliability: Hybrid ceramic construction offers excellent wear resistance and reduced operating temperature. The bearing is pre-lubricated for immediate operation within a wide temperature range.
- Optimal Load Capacity: The 25° contact angle is engineered to efficiently handle combined radial and axial loads simultaneously.
7012 ACE/HCP4AH1 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Systems
- High-Frequency Spindles for PCB Drilling
- Medical and Dental Equipment
- Advanced Aerospace Instrumentation
