71814 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71814 CD/P4
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
31
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3105 lbf
Radial static load rating
3600 lbf
Limiting speed
22 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:
$ 750.91
/ each
In Stock
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71814 CD/P4 Bearing Product Overview & Core Advantages
The 71814 CD/P4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4 (ABEC-7) tolerance class, this bearing is designed to accommodate high combined loads, primarily handling thrust loads in one direction while supporting significant radial loads. Its compact design, featuring a 70 mm bore and a 10 mm width, makes it ideal for space-constrained, high-speed spindles and precision machinery where high rigidity and minimal runout are critical for performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71814 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 70 mm bore and 90 mm outside diameter. |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and precise axial positioning. |
| P4 | Specifies the tolerance class, equivalent to ABEC-7, denoting ultra-precision manufacturing with extremely tight dimensional and running accuracy tolerances. |
71814 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized 15° contact angle and robust internal geometry enable the bearing to support high combined loads, providing excellent axial and radial stiffness for stable operation under demanding conditions.
- Precision & High-Speed Performance: Manufactured to P4 precision class with a phenolic resin cage, this bearing ensures minimal vibration and is capable of achieving a limiting speed of 22,000 rpm, making it suitable for high-speed spindles.
- Superior Material & Construction: Components made from high-grade chrome steel offer high fatigue life and wear resistance. The open design allows for customized lubrication schemes to optimize performance for specific operating conditions.
- Preload Availability: The bearing can be supplied with a preload, which eliminates internal clearance, increases system stiffness, and enhances rotational accuracy for critical applications.
71814 CD/P4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors & Spindles
- Precision Robotics and Automation Equipment
- Medical Equipment (e.g., high-speed dental handpieces, imaging devices)
- Aerospace Actuation Systems and Instrumentation
