7001 ACD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7001 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.042 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1580 lbf
Radial static load rating
821 lbf
Limiting speed
110 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7001 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7001 ACD/P4ADBB is a precision angular contact ball bearing configured as a matched duplex pair in back-to-back (DB) arrangement. Engineered for high-performance applications, this bearing excels at handling combined radial and axial loads simultaneously. Its P4A super-precision tolerance and light preload (Class B) ensure exceptional running accuracy, low noise, and high rigidity, making it ideal for demanding, high-speed machinery requiring superior rotational stability.
7001 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Indicates the bearing is part of a duplex pair. |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7 standards for exceptional dimensional and running accuracy. |
| DB | Specifies the Back-to-Back matched arrangement, which provides high moment rigidity and excellent operational stability. |
7001 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The duplex back-to-back (DB) arrangement creates a wide effective spread between load centers, significantly increasing the bearing set's resistance to moment loads and enhancing overall system stiffness.
- Superior Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring ultra-smooth and precise rotation.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and exhibits excellent performance at high speeds, contributing to a limiting speed of 110,000 rpm. The 25° contact angle provides a balanced capability for both high-speed operation and axial load support.
- Pre-Applied Lubrication: The bearing comes lubricated from the factory, ensuring immediate readiness for operation and reliable performance within its specified temperature range of -30°C to 110°C.
7001 ACD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for advanced machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles for CNC milling and grinding machines
- High-Frequency Spindles in PCB drilling and routing
- Precision Gearboxes and drive systems
- Robotic Arm Joints and precision actuators
- Medical and Dental Equipment handpieces
- Advanced Test and Measurement Instruments
