7207 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7207 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.24 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
17 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
13
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7178 lbf
Radial static load rating
4860 lbf
Limiting speed
38 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:
$ 202.23
/ each
In Stock
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7207 CD/HCP4A Bearing Product Overview & Core Advantages
The 7207 CD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Its defining feature is the ability to accommodate combined loads—significant radial loads alongside substantial axial loads in one direction. Manufactured to the exacting P4 (ABEC-7) tolerance class, it guarantees exceptional running accuracy. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capabilities, low friction, and extended service life, making it an ideal choice for high-reliability, high-rigidity applications.
Model Code In-Depth Analysis
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle and optimized internal design for high-speed operation and high rigidity. |
| HC | Signifies the use of Hybrid Ceramic balls, offering advantages in high-speed performance, reduced heat generation, and longer life. |
| P4A | Denotes a P4 (ABEC-7) tolerance class with specific running accuracy requirements, ensuring minimal vibration and precise operation. |
7207 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and P4 tolerance class provide excellent dimensional stability and rotational accuracy, which is critical for maintaining precision under load.
- Superior High-Speed Performance: The hybrid ceramic balls are lighter and harder than steel, reducing centrifugal force and wear. Combined with the lightweight, self-lubricating phenolic cage, this enables a high limiting speed of 38,000 rpm.
- Optimized Load Capacity: Engineered to handle combined radial and axial loads efficiently. The radial dynamic load rating of 7178 lbf and static load rating of 4860 lbf ensure reliable performance in demanding conditions.
- Preloaded Configuration: The availability of preload enhances system stiffness, reduces deflection under load, and improves positional accuracy.
7207 CD/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery where precision, speed, and reliability are paramount. Key application fields include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Actuators and Control Systems
- High-Speed Pumps and Compressors
