71819 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71819 CD/P4
Basic Information
System of measurement
Metric
Weight
0.29 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.008mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
32
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4972 lbf
Radial static load rating
6188 lbf
Limiting speed
16 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:
$ 1257.04
/ each
In Stock
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71819 CD/P4 Bearing Product Overview & Core Advantages
The 71819 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, particularly thrust loads in one direction, making it ideal for demanding scenarios. Its compact design, featuring a 95 mm bore and 13 mm width, provides a space-saving solution without compromising performance. The phenolic cage and optimized 15° contact angle contribute to superior high-speed capabilities and smooth operation.
71819 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71819 | Basic bearing designation indicating size series (18) and bore diameter (95 mm). |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and precise operation. |
| P4 | Specifies the ultra-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration for high-accuracy applications. |
71819 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized internal geometry and 15° contact angle enable the bearing to support significant combined radial and axial loads. With a dynamic load rating of 4972 lbf and a static load rating of 6188 lbf, it delivers reliable performance under strenuous conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, minimizes friction, and allows for a high limiting speed of 16,000 rpm. This makes it suitable for high-speed spindles and machinery.
- Precision Engineering: Manufactured to P4 tolerance standards, this bearing guarantees exceptional dimensional accuracy and running precision, which is critical for applications requiring minimal vibration and high positional accuracy.
- Optimized Material Selection: Constructed from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and durability. The open design allows for custom lubrication schemes to match specific operational requirements.
71819 CD/P4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and lathes.
- Precision Rotary Systems: Industrial robots, indexing tables, and rotary actuators.
- High-Frequency Motors & Spindles: Applications demanding low noise, high speed, and minimal vibration.
- Medical and Laboratory Equipment: Centrifuges, scanners, and other precision instruments.
