7015 ACD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 7015 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 25° contact angle and extra light preload (Class A), making it ideal for high-speed spindles and precision machinery. Its P4A tolerance class ensures superior dimensional and running accuracy, while the phenolic cage enables stable operation at limiting speeds up to 28,000 rpm. This bearing is capable of handling combined loads and is supplied pre-lubricated for immediate use.
7015 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with 25° contact angle |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DGA | Universal Matchable (SU) arrangement designation |
Structural Features and Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: With a radial dynamic load rating of 18,135 lbf and static load rating of 20,925 lbf, this bearing delivers reliable performance under combined radial and axial loads.
Superior High-Speed Performance: The phenolic cage material and optimized internal geometry enable stable operation at high rotational speeds up to 28,000 rpm.
Universal Matching Capability: As an SU universal matchable bearing, it can be paired with identical bearings in various configurations (DB, DF, DT) without selective matching.
Wide Temperature Range: Suitable for operating temperatures from -30°C to 110°C, accommodating various industrial environments.
7015 ACD/P4ADGA Bearing Typical Application Areas
Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and rigidity
Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
High-Speed Motors: Spindle motors, high-frequency motors, and servo drives
Aerospace Components: Gyroscopes, navigation systems, and aircraft control mechanisms
Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
