7201 ACD/P4ADBB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7201 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7201 ACD/P4ADBB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it ensures high running accuracy and is preloaded for optimal performance in high-speed, high-precision machinery. Its compact design and light preload (Class B) make it ideal for applications where space is limited and precise shaft positioning is critical.
7201 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7201 | Basic bearing series and size designation (12mm bore, 32mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex (Two single bearings supplied as a matched set). |
| DB | Back-to-Back mounting arrangement. |
| P4A | High precision tolerance class (superior to ABEC 7). |
| BB | Indicates the specific preload level within the matched set (Light / Class B). |
7201 ACD/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and ensures precise shaft guidance, crucial for maintaining accuracy under combined loads.
Superior Load Capacity: With a 25° contact angle and a dynamic load rating of 2077 lbf, this bearing is engineered to handle significant radial and axial loads from both directions simultaneously.
Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 95,000 rpm. The bearing is pre-lubricated for immediate operation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees high running accuracy, low vibration, and consistent performance.
7201 ACD/P4ADBB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Instrumentation: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Frequency Spindles: PCB drilling and routing machines.
- Robotics: High-accuracy joints and arm linkages.
- Medical Equipment: Dental handpieces and small surgical tools.
