S7012 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7012 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.34 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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
17 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:
$ 501.25
/ each
In Stock
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S7012 CD/HCP4A Bearing Product Overview & Core Advantages
The S7012 CD/HCP4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a single-row bearing, it is engineered to accommodate combined loads, primarily handling high radial loads and unidirectional axial loads. Its key advantages stem from its P4 (ABEC-7) tolerance class, ceramic ball material, and phenolic cage, making it an ideal choice for high-rigidity, high-RPM applications where reliability is paramount.
S7012 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| S7012 | Basic bearing series and size designation (60mm bore, 95mm OD, 18mm width) | Defines the standard bearing dimensions and internal geometry. |
| C | 15° contact angle | Optimized for high-speed operation and moderate axial load capacity. |
| D | High preload designation | Enhances system rigidity and reduces vibration under operational loads. |
| HC | Hybrid Ceramic (Chrome Steel rings with Ceramic balls) | Reduces friction, increases limiting speed, and provides longer service life. |
| P4 | Tolerance class P4 (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for precision applications. |
S7012 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces and friction, enabling a high limiting speed of 17,000 rpm. This construction also offers superior resistance to wear and operates effectively with less lubrication.
- Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to smooth operation at high speeds, provides excellent dimensional stability, and is suitable for the specified temperature range.
- High Preload (D): This bearing is supplied with a high preload, which maximizes system stiffness, improves rotational accuracy, and dampens vibrations, making it exceptionally stable under combined loads.
- Precision Engineering (P4): Manufactured to P4 tolerance standards, this bearing ensures minimal runout and precise positioning, which is critical for applications requiring high dynamic performance and accuracy.
S7012 CD/HCP4A Bearing Typical Application Areas
The S7012 CD/HCP4A is ideally suited for high-performance machinery where speed, precision, and rigidity are non-negotiable. Key sectors include:
- High-Speed Machine Tool Spindles: For CNC milling, grinding, and drilling centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
