7015 CD/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7015 CD/P4ADBA
Basic Information
System of measurement
Metric
Weight
1.26 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
40 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
19170 lbf
Radial static load rating
22050 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7015 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7015 CD/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement bearing set is preloaded to Extra Light (Class A) specifications, providing superior system stiffness and minimal runout. Engineered to handle combined loads, it efficiently supports significant radial loads and axial loads in both directions simultaneously. Manufactured to P4A tolerance class, it guarantees high-precision performance ideal for high-speed spindles and other critical machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series, defining the boundary dimensions: 75 mm bore, 115 mm OD, 40 mm width. |
| C | Designates a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| D | Indicates the bearing is supplied as a duplex pair in a specific preloaded set. |
| P4A | Specifies the high-precision tolerance class, exceeding standard ABEC 7/ISO P4 levels for enhanced running accuracy. |
| DB | Denotes the Back-to-Back mounting arrangement, which provides high moment rigidity. |
| A | Specifies the Extra Light preload (Class A) for minimal friction and optimal high-speed performance. |
7015 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning under heavy combined loads.
- Superior Precision: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing minimizes vibration and ensures exceptional running accuracy.
- Optimized High-Speed Performance: The 15° contact angle and phenolic resin cage reduce centrifugal forces and friction, enabling a high limiting speed of 22,000 rpm. The Extra Light preload further minimizes heat generation at high speeds.
- High Load Capacity: With a dynamic load rating of 19,170 lbf and a static load rating of 22,050 lbf, the bearing is built to handle demanding radial and bidirectional axial loads.
- Premium Material Construction: Components made from chrome steel for rings and balls ensure high durability, long service life, and consistent performance under the specified temperature range of -30°C to 110°C.
7015 CD/P4ADBA Bearing Typical Application Areas
This precision bearing set is ideally suited for high-performance applications where accuracy, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving machines, and high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arm actuators.
- Medical Equipment: Dental handpieces, centrifuges, and imaging scanner rotors.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation instruments.
