7015 CD/HCP4ATGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7015 CD/HCP4ATGA
Basic Information
System of measurement
Metric
Weight
1.58 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
60 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
25650 lbf
Radial static load rating
32850 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7015 CD/HCP4ATGA Bearing Product Overview & Core Advantages
The 7015 CD/HCP4ATGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a 15° contact angle and is supplied as part of a universally matchable (SU) set of three. Its core advantages include ultra-high precision (P4A tolerance class), the use of ceramic balls for reduced friction and high-speed capability, and a phenolic cage optimized for smooth operation at the limiting speed of 22,000 rpm. This configuration delivers superior rotational accuracy and high rigidity, making it ideal for the most critical spindle applications.
7015 CD/HCP4ATGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7015 CD/HCP4ATGA is decoded as follows:
- 7015: Basic series designation, indicating a light series angular contact bearing with a 75 mm bore and 115 mm outside diameter.
- C: Denotes a 15° contact angle.
- D: Indicates the bearing is part of a universally matchable (SU) set.
- HC: Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings).
- P4A: Specifies an ultra-high precision tolerance class, exceeding ABEC 7/ISO P4 standards.
- T: Designates the cage material as Phenolic (fiberglass reinforced).
- GA: Indicates a specific preload category - Extra Light (Class A).
7015 CD/HCP4ATGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces friction, heat generation, and wear. This allows for higher limiting speeds (22,000 rpm), extended service life, and the ability to run with minimal lubrication.
- Ultra-Precision P4A Tolerance: Manufactured to the tightest dimensional and running accuracy standards, ensuring minimal runout and vibration for superior rotational precision in high-speed spindles.
- Phenolic Resin Cage: This cage material offers excellent strength-to-weight ratio, low friction, and smooth operation at high speeds, contributing to the bearing's overall high-speed performance and stability.
- Universal Matchable Design (SU): Bearings in this set can be mounted in any combination (face-to-face, back-to-back, or tandem) to accommodate various load and rigidity requirements, providing exceptional application flexibility.
- High Load Capacity: With a dynamic load rating of 25,650 lbf and a static load rating of 32,850 lbf, this bearing is capable of handling significant combined loads.
7015 CD/HCP4ATGA Bearing Typical Application Areas
The 7015 CD/HCP4ATGA is specifically engineered for high-performance machinery where speed, precision, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling spindles, semiconductor manufacturing equipment.
- High-Frequency Motors: Motors for CNC machinery and robotics.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other critical rotating assemblies.
