7001 CD/P4ADBG8
7000 Series Super Precision Angular Contact Ball Bearings
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7001 CD/P4ADBG8 Bearing Product Overview & Core Advantages
The 7001 CD/P4ADBG8 is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set features a P4A tolerance class, ensuring ultra-precise dimensions and runout control. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously while providing high stiffness and stable operation at high speeds, making it ideal for high-precision, high-reliability machinery.
7001 CD/P4ADBG8 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7001 | Basic bearing series, indicating a 12mm bore, 28mm OD, and 16mm width. |
| C | Specifies a 15° contact angle, optimized for high-speed applications with significant axial loads. |
| D | Indicates the bearing is part of a duplex pair. |
| P4A | Denotes an ultra-precision tolerance class with enhanced dimensional and running accuracy. |
| DB | Specifies the Back-to-Back arrangement of the matched set, providing high moment rigidity. |
| G8 | Indicates a specific preload level applied to the matched set for optimal stiffness and running accuracy. |
7001 CD/P4ADBG8 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and tilting. This configuration, combined with the 15° contact angle, provides excellent capacity for combined radial and axial loads.
Precision & High-Speed Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The phenolic resin cage offers low weight and excellent performance at the limiting speed of 110,000 rpm, making it a true high-speed bearing.
Optimized for Precision Applications: The bearings are supplied as a pre-loaded matched set, eliminating the need for complex axial adjustment during installation and ensuring immediate, optimal performance with minimal axial and radial play.
7001 CD/P4ADBG8 Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Robotic Drives: In joints and actuators where high positional accuracy and responsiveness are critical.
- High-Frequency Spindles: Used in PCB drilling, dental handpieces, and other applications demanding very high rotational speeds.
- Optical and Measuring Instrumentation: Where minimal runout and smooth operation are paramount for accuracy.
