71801 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71801 CD/P4
Basic Information
System of measurement
Metric
Weight
0.006 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
21 mm
Outside diameter tolerance
-0.005mm to 0
Width
5 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
2.381 mm
Ball quantity
14
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
468 lbf
Radial static load rating
266 lbf
Limiting speed
110 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:
$ 145.26
/ each
In Stock
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71801 CD/P4 Bearing Product Overview & Core Advantages
The 71801 CD/P4 is a single-row angular contact ball bearing designed for applications demanding high precision and superior rotational accuracy. Manufactured to P4 (ABEC-7) tolerance class, it excels in handling combined radial and axial loads simultaneously. Its compact design, with a 15° contact angle, provides excellent high-speed performance and operational stability, making it ideal for high-reliability, precision machinery.
71801 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71801 | Basic bearing designation indicating a metric, single-row angular contact ball bearing with a 12 mm bore, 21 mm OD, and 5 mm width. |
| CD | Indicates a specific contact angle of 15° and optimized internal geometry for high-speed operation and high rigidity. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy for precision applications. |
71801 CD/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The P4 tolerance class ensures minimal runout and vibration, while the optimized internal geometry and 15° contact angle provide high axial and radial rigidity for stable performance under load.
- Optimized for High Speeds: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to the high limiting speed of 110,000 rpm. The bearing is pre-lubricated for immediate high-speed operation.
- Superior Load Capacity: Engineered to handle combined loads effectively, with a dynamic load rating of 468 lbf and a static load rating of 266 lbf.
- Preload Availability: The design allows for preload, which eliminates internal clearance, increases system stiffness, and further enhances rotational accuracy.
- High-Quality Materials: Constructed from chrome steel for rings and balls, ensuring high durability, wear resistance, and a long service life within a temperature range of -30°C to 110°C.
71801 CD/P4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Grinding Spindles
- Precision Robotics and Automation Equipment
- High-Frequency Motors and Spindles
- Medical and Dental Handpieces
- Aerospace Instrumentation
