7005 CE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7005 CE/HCP4BVG275
Basic Information
System of measurement
Metric
Weight
0.065 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
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:
$ 122.26
/ each
In Stock
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7005 CE/HCP4BVG275 Bearing Product Overview & Core Advantages
The 7005 CE/HCP4BVG275 is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and superior dimensional stability. Its core advantage lies in its ability to accommodate high combined loads, particularly thrust loads in one direction, making it ideal for high-rigidity spindles and precision machinery. The combination of a ceramic ball material and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life.
7005 CE/HCP4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series, indicating a 25mm bore, 47mm OD, and 12mm width. |
| CE | Internal design code, typically indicating a 15° contact angle and optimized internal geometry for high-speed operation. |
| HC | Hybrid Ceramic, signifying the use of ceramic balls with steel rings. |
| P4 | The tolerance class, equivalent to ABEC-7, denoting ultra-precision manufacturing standards. |
| BVG275 | A manufacturer-specific code, often related to preload level and internal clearance selection. |
7005 CE/HCP4BVG275 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and low friction, while the ceramic balls reduce centrifugal forces and prevent adhesive wear. This combination enables the bearing to achieve a high limiting speed of 56,000 rpm.
- Precision and Rigidity: Manufactured to a P4 tolerance class with a 15° contact angle, this bearing provides high running accuracy and stiffness, which is critical for minimizing deflection under load in precision spindles.
- Superior Load Capacity: The optimized internal geometry and high-grade materials provide a dynamic load rating of 1872 lbf and a static load rating of 934 lbf, ensuring reliable performance under demanding combined radial and axial loads.
- Temperature and Longevity: The hybrid ceramic construction and pre-lubrication allow for stable operation within a temperature range of -30°C to 110°C, reducing thermal expansion concerns and extending service intervals.
7005 CE/HCP4BVG275 Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Frequency Motors and Spindles: PCB drilling spindles and dental handpieces.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
