7001 CD/P4ADBC
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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7001 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7001 CD/P4ADBC is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This matched back-to-back arrangement (DB) provides superior stability when handling combined loads (radial and axial) from both directions. Manufactured to P4A tolerance class, it ensures minimal runout and consistent performance in high-precision machinery. The phenolic cage and optimized 15° contact angle contribute to smooth operation at high speeds, making it ideal for demanding applications.
7001 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7001 | Basic bearing designation (12mm bore, 28mm OD) |
| C | 15° contact angle design |
| D | Duplex back-to-back (DB) matched arrangement |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DB | Duplex back-to-back mounting configuration |
| C | Moderate preload (Class C) |
7001 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and handles combined radial and axial loads from both directions. With a radial dynamic load rating of 1638 lbf and static load rating of 855 lbf, it provides reliable performance under significant stress.
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls (bore tolerance: -0.004mm to 0), this bearing ensures minimal vibration and precise rotational accuracy. The phenolic cage offers excellent dimensional stability and reduced friction at high speeds.
High-Speed Capability: The optimized design with 10 precision balls (4.762mm diameter) and 15° contact angle enables operation at limiting speeds up to 110,000 rpm. The phenolic cage contributes to lower centrifugal forces and smoother high-speed rotation.
Material Excellence: Constructed from chrome steel for both rings and balls, providing superior hardness, wear resistance, and long service life in demanding operating conditions.
7001 CD/P4ADBC Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding equipment
- Medical equipment such as dental handpieces and surgical tools
- Aerospace components including gyroscopes and navigation systems
- Robotics and automation systems demanding precise motion control
- Test and measurement equipment requiring minimal vibration
