71810 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71810 CD/P4
Basic Information
System of measurement
Metric
Weight
0.051 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
65 mm
Outside diameter tolerance
-0.007mm to 0
Width
7 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
30
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1667 lbf
Radial static load rating
1755 lbf
Limiting speed
30 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:
$ 70.03
/ each
In Stock
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71810 CD/P4 Bearing Product Overview & Core Advantages
The 71810 CD/P4 is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Operating under the stringent P4 (ABEC-7) tolerance class, this bearing is designed to handle significant axial loads in one direction while supporting moderate radial loads. Its compact cross-section, with a 7 mm width, makes it an ideal solution for space-constrained, high-speed applications such as precision spindles. The bearing comes pre-lubricated and is available with a preload for enhanced rigidity and reduced vibration.
71810 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71810 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 50 mm bore and 65 mm outside diameter. |
| CD | Indicates a specific contact angle of 15° and is optimized for a matched arrangement (duplex pairing) to achieve high rigidity. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy for high-precision applications. |
71810 CD/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance class with a 15° contact angle, this bearing provides exceptional running accuracy and system stiffness, especially when used in a preloaded, duplex arrangement.
- Optimized for High Speeds: The lightweight phenolic resin cage ensures stable operation and low centrifugal forces, contributing to the high limiting speed of 30,000 rpm.
- Superior Load Capacity: The design is optimized to carry high axial loads in one direction. With a dynamic load rating of 1667 lbf and a static load rating of 1755 lbf, it offers reliable performance under demanding conditions.
- Pre-Lubricated & Ready-to-Use: The bearing is factory-lubricated, ensuring immediate and smooth operation upon installation within a specified temperature range of -30° to 110 °C.
71810 CD/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery requiring high rotational speeds and accuracy, including:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Applications
- High-Speed Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
