71826 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71826 CD/P4
Basic Information
System of measurement
Metric
Weight
0.77 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
130 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
165 mm
Outside diameter tolerance
-0.01mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
35
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
11925 lbf
Limiting speed
11 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:
$ 1819.13
/ each
In Stock
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71826 CD/P4 Bearing Product Overview & Core Advantages
The 71826 CD/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is optimized to accommodate combined loads, primarily handling thrust loads in one direction while supporting significant radial loads. Its compact design, featuring a phenolic cage and a 15° contact angle, makes it an ideal solution for high-speed spindles and other machinery demanding superior running accuracy and high rigidity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71826 | Basic bearing designation, indicating the bearing dimensions (130mm bore, 165mm OD, 18mm width). |
| CD | Indicates a specific internal design with a 15° contact angle and optimized internal geometry for high performance. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy tolerances for precision applications. |
71826 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 super-precision standards, this bearing ensures minimal runout and vibration, providing the high rigidity necessary for applications like machine tool spindles.
- Optimized Load Capacity: The 15° contact angle is engineered to efficiently handle combined loads, offering excellent performance under primarily one-directional thrust and significant radial loads.
- Superior High-Speed Performance: The lightweight and robust phenolic resin cage ensures stability and reduced centrifugal forces, contributing to a high limiting speed of 11,000 rpm. The open design facilitates efficient lubrication management.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ready for installation and initial operation, simplifying the assembly process.
- Durable Material Construction: Components made from chrome steel provide high hardness, wear resistance, and a long operational life under demanding conditions.
71826 CD/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery where accuracy and speed are critical. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Gearboxes
- High-Frequency Motors
- Medical and Dental Equipment Spindles
- Aerospace Instrumentation
