7001 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7001 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.021 kg
Tolerance class
P4 (ABEC-7)
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
-0.005mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1010 lbf
Radial static load rating
428 lbf
Limiting speed
100 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 43.74
/ each
In Stock
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7001 CD/P4A Bearing Product Overview & Core Advantages
The 7001 CD/P4A is a single-row angular contact ball bearing designed for high-precision and high-speed applications. Engineered to a P4 (ABEC-7) tolerance class, it offers exceptional running accuracy. Its key advantage is the ability to accommodate combined loads (radial and axial) simultaneously, with the 15° contact angle optimized for high axial load capacity. The bearing is preloaded and pre-lubricated, ensuring high rigidity
7001 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 7001 | Basic Bearing Number | Defines the standard metric dimensions: 12mm bore, 28mm OD, 8mm width. |
| C | 15° Contact Angle | Optimized design for handling significant axial loads in one direction. |
| D | High Contact Angle | Indicates a contact angle greater than the standard C designation, further enhancing axial load capacity. |
| P4 | Tolerance Class | Corresponds to ABEC-7, denoting very high precision for minimal vibration and superior running accuracy. |
| A | Preload | Specifies that the bearing is supplied with an internal preload, increasing system stiffness and reducing axial/radial play. |
7001 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance class and internal preload work in tandem to deliver exceptional system stiffness and rotational accuracy, critical for applications sensitive to deflection and runout.
- Superior Load Capacity: The angular contact design with a 15° contact angle is engineered to efficiently support combined radial and axial loads. The use of 10 high-grade chrome steel balls ensures robust dynamic performance.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the open design and pre-lubrication facilitate effective heat dissipation, enabling stable operation at the high limiting speed of 100,000 rpm.
- Durability and Reliability: Manufactured from through-hardened chrome steel for both rings and balls, this bearing offers excellent wear resistance and a long service life under demanding conditions.
7001 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery requiring high speed, high rigidity, and exceptional accuracy. Key application fields include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-accuracy actuators)
- High-Frequency Spindles (PCB drilling, dental handpieces)
- Optical and Measuring Instrumentation
- Aerospace Actuation Systems
