S7005 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7005 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.068 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1872 lbf
Radial static load rating
934 lbf
Limiting speed
56 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:
$ 146.69
/ each
In Stock
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S7005 CE/HCP4A Bearing Product Overview & Core Advantages
The S7005 CE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing features a 15° 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, with a limiting speed of 56,000 rpm. Pre-lubricated and sealed, it is designed for reliable, long-term operation in precision machinery.
S7005 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Indicates the use of Hybrid Ceramic balls (Silicon Nitride), which reduce weight and centrifugal force, enhancing high-speed capability and reducing friction. |
| HCP4A | Denotes a P4 (ABEC-7) tolerance class for ultra-precision. The "A" suffix typically indicates a specific contact angle (15° in this case) and a preload grade for optimal stiffness and rotational accuracy. |
S7005 CE/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Running Accuracy: The combination of a 15° contact angle and an applied preload significantly increases system stiffness, minimizes axial and radial play, and ensures exceptional running accuracy, which is critical for precision spindles.
- Superior High-Speed Performance: The hybrid ceramic balls are lighter and harder than steel, reducing centrifugal forces and wear. Coupled with the lightweight, high-strength phenolic cage, this design allows the bearing to achieve a very high limiting speed of 56,000 rpm.
- Extended Service Life & Reliability: The sealed design protects against contamination, while the factory-applied lubrication is suitable for the specified temperature range. The inherent properties of ceramic balls also contribute to longer life, especially in high-speed or marginally lubricated conditions.
- Precision Engineering: Manufactured to P4 (ABEC-7) tolerance standards, this bearing guarantees tight dimensional control and consistent, high-performance operation.
S7005 CE/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and PCB drilling machines.
- Precision Medical Equipment: Dental handpieces and laboratory centrifuges.
- High-Frequency Motors & Spindles: Servo motors, turbo-molecular pumps, and small turbine applications.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and radar systems.
