71826 ACD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71826 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
35
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8190 lbf
Radial static load rating
11250 lbf
Limiting speed
9.5 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:
$ 1819.7
/ each
In Stock
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71826 ACD/P4 Bearing Product Overview & Core Advantages
The 71826 ACD/P4 is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Positioned in the P4 (ABEC-7) tolerance class, it delivers exceptional running accuracy. A key advantage is its ability to accommodate combined loads—significant radial loads and axial loads in one direction—thanks to its defined 25° contact angle. The bearing is preloaded and comes lubricated from the factory, ensuring immediate high-stability operation, making it ideal for high-speed spindles and other precision machinery.
71826 ACD/P4 Bearing Model Code Explained, Specifications & Naming Convention
The model number 71826 ACD/P4 provides detailed technical specifications:
- 71826: Basic bearing designation indicating a metric, single-row angular contact bearing with a 130mm bore.
- ACD: Signifies a 25° contact angle and that the bearing is supplied as a preloaded and lubricated matched set (in this case, a single bearing prepared for a specific preload).
- P4: Denotes a very high precision class (equivalent to ABEC-7), ensuring minimal runout and vibration for demanding applications.
71826 ACD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance standards with a phenolic resin cage, this bearing offers excellent dimensional stability and low vibration, which is critical for high-speed operation up to 9,500 rpm.
- Superior Load Capacity: The 25° contact angle and robust construction using chrome steel for rings and balls enable it to handle high dynamic (8,190 lbf) and static (11,250 lbf) loads effectively.
- Optimized for High-Speed Applications: The lightweight phenolic cage reduces centrifugal forces, contributing to a higher limiting speed and smooth operation.
- Ready-to-Install Performance: The bearing is supplied preloaded and lubricated, reducing assembly time and ensuring immediate, optimal performance with a wide operating temperature range of -30°C to 110°C.
71826 ACD/P4 Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
