71814 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71814 ACDGB/P4
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm 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°C to 110 °C
Radial dynamic load rating
2925 lbf
Radial static load rating
3375 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71814 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71814 ACDGB/P4 is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single bearing with a 25° contact angle and Universal Matchable (SU) designation, it is engineered to accommodate combined loads—high radial loads and axial loads in one direction. Its P4 tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other precision machinery where minimal runout and high system rigidity are critical.
71814 ACDGB/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, optimized for combined loads. |
| D | High contact angle (25°) for superior axial load capacity. |
| GB | Universal Matchable (SU) bearing. Can be mounted in pairs (back-to-back, face-to-face, or tandem) without selective shimming to achieve preload. |
| /P4 | High-Precision Tolerance Class. Exceeds ABEC-7 standards, ensuring extremely tight dimensional and running accuracy. |
71814 ACDGB/P4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction using chrome steel rings and balls enable the bearing to support significant combined radial and axial loads. The phenolic cage contributes to the overall stability and smooth operation.
- Precision & High-Speed Performance: Manufactured to P4 tolerance class, this bearing guarantees minimal vibration and precise rotation. The optimized internal geometry and phenolic cage allow for a high limiting speed of 28,000 rpm, making it suitable for demanding high-speed applications.
- Universal Matching & Simplified Assembly: The Universal Matchable (SU/GB) feature allows for direct pairing with another identical bearing to form a preloaded set, simplifying installation and reducing assembly time and cost in complex spindle arrangements.
- Pre-Lubricated & Ready-to-Use: The bearing comes pre-lubricated, ensuring immediate operation and protection during the initial run-in period within its specified temperature range of -30°C to 110°C.
71814 ACDGB/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy joints and arm assemblies.
- Medical Equipment: Dental handpieces, imaging device rotors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation instruments.
