7012 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7012 CDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.34 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
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:
$ 417.11
/ each
In Stock
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7012 CDTP/HCP4B Bearing Product Overview & Core Advantages
The 7012 CDTP/HCP4B is a high-precision single row angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Its defining feature is the ceramic ball material (Silicon Nitride) combined with a P4 (ABEC-7) super-precision tolerance class, making it an ideal solution for high-speed operation. The bearing is preloaded and pre-lubricated, ensuring immediate high rigidity and smooth, quiet running from the first rotation. It is designed to handle combined loads, with a 15° contact angle optimizing axial load capacity.
7012 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| CD | High Contact Angle & High Rigidity | Optimized internal geometry for enhanced stiffness and axial load capacity. |
| T | Phenolic (Textolite) Cage | Provides excellent strength-to-weight ratio, low friction, and superior performance in high-speed applications. |
| P | Preload | Eliminates internal clearance, resulting in greater shaft positioning accuracy and system rigidity. |
| HC | Hybrid Ceramic | Silicon Nitride (Si3N4) balls reduce centrifugal forces, lower operating temperature, and extend service life, especially at high speeds. |
| P4B | Enhanced P4 Tolerance | Tighter dimensional and running accuracy tolerances beyond standard ABEC-7/P4 for the most demanding precision applications. |
7012 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of steel rings and ceramic balls significantly reduces weight and inertia, enabling higher limiting speeds (17,000 rpm) and providing electrical insulation. This construction also offers superior resistance to wear and a longer operational lifespan.
- High Rigidity and Precision: The P4B tolerance class and application of preload ensure minimal runout and exceptional rotational accuracy. This results in superior system stability and positioning precision.
- Optimized for High Speeds: The lightweight phenolic cage and low-density ceramic balls work in tandem to minimize centrifugal forces and frictional heat, making this bearing a top choice for high-speed spindles.
- Robust Load Capacity: With a dynamic load rating of 9068 lbf and a static load rating of 7762 lbf, this bearing reliably handles significant combined (radial and axial) loads.
7012 CDTP/HCP4B Bearing Typical Application Areas
This high-performance precision bearing is ideally suited for advanced machinery where speed, accuracy, and reliability are critical. Key application areas include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- High-Frequency Motors and Spindles: Electric motor spindles for PCB drilling and precision engraving.
- Precision Instrumentation: Medical and laboratory equipment, optical scanners, and coordinate measuring machines.
- Aerospace and Robotics: Actuators, gimbal systems, and other applications requiring high rigidity and low inertia.
