71814 ACD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71814 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
31
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2925 lbf
Radial static load rating
3375 lbf
Limiting speed
19 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:
$ 751.5
/ each
In Stock
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71814 ACD/P4 Bearing Product Overview & Core Advantages
The 71814 ACD/P4 is a single-row angular contact ball bearing designed for applications demanding high precision and superior rigidity. Engineered to P4 (ABEC-7) tolerance class, it excels in handling combined loads, particularly thrust loads in one direction, while maintaining exceptional running accuracy. Its compact design, featuring a 10mm width, makes it ideal for space-constrained, high-performance assemblies. The bearing comes prelubricated and is optimized for high-speed operation up to 19,000 rpm, offering reliable performance in demanding environments.
71814 ACD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71814 | Basic bearing series and size designation (70mm bore, 90mm OD, 10mm width) |
| AC | Angular Contact design with a 25° contact angle |
| D | High preload level for maximum rigidity |
| P4 | Precision tolerance class equivalent to ABEC-7 |
71814 ACD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The 25° contact angle and high preload (D) configuration provide exceptional stiffness and minimal deflection under load, ensuring precise shaft positioning and reduced vibration.
- Optimized Load Capacity: Engineered to support significant combined radial and axial loads (Dynamic: 2925 lbf, Static: 3375 lbf), making it suitable for applications with complex loading conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the optimized internal geometry and lubrication enable a limiting speed of 19,000 rpm.
- Premium Material Construction: Manufactured from chrome steel for rings and balls, ensuring high durability, wear resistance, and consistent performance within a temperature range of -30°C to 110°C.
71814 ACD/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles (high-speed milling, grinding)
- Precision Gearboxes and Robotic Drives
- High-Frequency Motors and Spindle Drives
- Medical Equipment and Optical Instrumentation
- Aerospace Actuation Systems
