71807 ACDGC/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71807 ACDGC/P4
Basic Information
System of measurement
Metric
Weight
0.028 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
7 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
981 lbf
Radial static load rating
911 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
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
71807 ACDGC/P4 Bearing Product Overview & Core Advantages
The 71807 ACDGC/P4 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. Engineered to a P4 tolerance class, it delivers superior running accuracy and dimensional stability. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces simultaneously. The phenolic cage and universal matching (SU) designation make it ideal for high-speed spindle arrangements and other high-rigidity, precision machinery.
71807 ACDGC/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71807 | Basic bearing series and size designation (35mm bore, 47mm OD, 7mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Moderate preload (Class C). |
| GC | Internal clearance group. |
| /P4 | High precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
71807 ACDGC/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and 25° contact angle provide excellent resistance to combined loads, making the bearing exceptionally stiff and stable under complex loading conditions.
- High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling a high limiting speed of 56,000 rpm. This is critical for high-speed spindle applications.
- Precision Engineering: Manufactured to P4 tolerance standards with tight bore, outside diameter, and width tolerances, this bearing guarantees minimal runout and vibration for superior operational accuracy.
- Universal Matching (SU): Bearings are universal matchable, allowing for flexible mounting in duplex sets (back-to-back or face-to-face) to accommodate various load and rigidity requirements without selective pairing.
71807 ACDGC/P4 Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Robotic Drives and Servo Motors
- Other high-speed, high-accuracy industrial machinery requiring high rigidity and P4 precision.
