71807 CDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71807 CDGB/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
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1040 lbf
Radial static load rating
968 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
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
71807 CDGB/P4 Bearing Product Overview & Core Advantages
The 71807 CDGB/P4 is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single bearing with a Universal Matchable (SU) designation, it can be mounted in sets to create a preloaded arrangement, offering superior stiffness and runout control. Its P4 tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-speed spindles and other precision machinery. The bearing is pre-lubricated for immediate use and features a lightweight phenolic cage optimized for high rotational speeds.
71807 CDGB/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). |
| C | 15° contact angle, optimized for combined loads. |
| D | Light preload (Class B). |
| G | Universal Matchable (SU) bearing for set mounting. |
| B | 72° contact angle for higher axial load capacity (Note: This may be a specific manufacturer designation; confirm with datasheet). |
| /P4 | High precision tolerance class for superior running accuracy. |
71807 CDGB/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance standards with a light preload (Class B), this bearing provides exceptional rotational accuracy, minimal runout, and high system rigidity, which is critical for machining precision.
- Superior Load Capacity: The angular contact design with a 15° contact angle enables it to efficiently support combined radial and axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground components contribute to a high limiting speed of 56,000 rpm, making it an excellent high-speed bearing.
- Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be mounted in sets (typically 2 or 3) in a back-to-back, face-to-face, or tandem arrangement to achieve the desired preload and stiffness without selective assembly.
71807 CDGB/P4 Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors
- Medical Equipment (e.g., dental handpieces)
- Aerospace Actuators and Instrumentation
