7015 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7015 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.66 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.008mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
30
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4478 lbf
Radial static load rating
3960 lbf
Limiting speed
28 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:
$ 602.97
/ each
In Stock
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7015 CB/HCP4A Bearing Product Overview & Core Advantages
The 7015 CB/HCP4A is a single row angular contact ball bearing engineered for applications demanding high precision and high-speed performance. Its defining feature is the 15° contact angle, optimized to handle significant axial loads in one direction while supporting radial loads. Manufactured to the exacting P4 (ABEC-7) tolerance class, it offers exceptional running accuracy and rotational stability. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life, making it an ideal choice for high-reliability, high-rigidity spindle applications.
7015 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series and size designation (75mm bore, 115mm OD, 20mm width). |
| CB | Specific internal design featuring a 15° contact angle and modified internal clearances/geometry for optimized performance. |
| HC | Indicates the use of Hybrid Ceramic components, specifically ceramic balls. |
| P4A | Specifies the tolerance class P4 (ABEC-7) with additional dimensional and running accuracy requirements for the inner and outer rings. |
7015 CB/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic resin cage and low-friction ceramic balls significantly reduces centrifugal forces and operating temperatures, enabling a high limiting speed of 28,000 rpm.
- Enhanced Rigidity & Load Capacity: The angular contact design and 15° contact angle provide high axial and radial stiffness, effectively handling combined loads.
- Precision Performance: Manufactured to P4 precision class with tight dimensional tolerances, ensuring minimal runout and smooth, quiet operation essential for spindle applications.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance and increases system rigidity for superior positional accuracy.
- Optimized for High Temperatures: The phenolic cage and ceramic balls maintain dimensional stability and performance across the specified temperature range.
7015 CB/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Grinding Equipment
- High-Frequency Motors
- Aerospace & Defense Actuators
- Medical & Dental Handpiece Drives
