7012 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7012 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.39 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
7.938 mm
Ball quantity
25
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3870 lbf
Radial static load rating
2902 lbf
Limiting speed
37 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 173.96
/ each
In Stock
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7012 CE/HCP4A Bearing Product Overview & Core Advantages
The 7012 CE/HCP4A is a single row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional performance. Positioned in the P4 (ABEC-7) tolerance class, it is designed to handle significant combined loads with high accuracy. A key advantage is its ceramic ball construction, which reduces weight and centrifugal forces, enabling superior high-speed capabilities and extended service life. The bearing is supplied pre-lubricated and is available with a preload for enhanced system rigidity and rotational accuracy.
7012 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing designation indicating a metric, single row angular contact bearing with a 60mm bore, 95mm OD, and 18mm width. |
| C | Designates a 15° contact angle, optimized for high-speed applications requiring high rigidity. |
| E | Indicates an optimized internal design and P4 tolerance class. |
| HC | Signifies the use of Hybrid Ceramic balls (silicon nitride). |
| P4A | Confirms the P4 (ABEC-7) precision tolerance and that the bearing is supplied with a specific preload. |
7012 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls results in lower friction, reduced operating temperature, and significantly higher limiting speed (37,000 rpm) compared to all-steel equivalents. This also provides electrical insulation and superior performance in lubricant-starved conditions.
- High Rigidity & Precision: The 15° contact angle and availability of preload ensure high system stiffness and minimal axial/radial runout, which is critical for precision machining and positioning.
- Phenolic Cage: The phenolic resin cage offers excellent strength-to-weight ratio and operates effectively at high speeds with low friction and noise.
- Superior Load Capacity: With a dynamic load rating of 3870 lbf and a static load rating of 2902 lbf, this bearing reliably handles significant combined (radial and axial) loads.
7012 CE/HCP4A Bearing Typical Application Areas
This high-performance angular contact ball bearing is ideally suited for demanding applications, including:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- Robotic Arm Joints and Drives
- High-Frequency Motors and Turbomachinery
- Medical and Dental Equipment Spindles
- Aerospace Actuation Systems
