71822 CDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71822 CDGB/P4
Basic Information
System of measurement
Metric
Weight
0.51 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7178 lbf
Radial static load rating
9112 lbf
Limiting speed
16 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
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71822 CDGB/P4 Bearing Product Overview & Core Advantages
The 71822 CDGB/P4 is a single row angular contact ball bearing designed for high-precision applications requiring superior rotational accuracy and rigidity. Engineered to a P4 tolerance class, this bearing excels in handling combined loads, primarily thrust loads in one direction, while maintaining exceptional running accuracy. Its light preload (Class B) minimizes deflection under operational stresses, making it ideal for high-speed spindles and other precision machinery where minimal runout and high system rigidity are critical.
71822 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing designation indicating size series and bore diameter (110mm). |
| C | Specifies a 15° contact angle, optimized for high-speed operation and thrust load capacity. |
| DGB | Indicates a Universal Matchable (SU) bearing. This means the bearing is ground to universal matching standards, allowing it to be mounted in any combination (back-to-back, face-to-face, or tandem) with other bearings from the same manufactured set without preload variation. |
| /P4 | Denotes a high precision tolerance class with extremely tight dimensional and running accuracy tolerances, superior to standard ABEC-7. |
71822 CDGB/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance standards with a 15° contact angle and light preload, this bearing delivers exceptional running accuracy and system stiffness, effectively resisting operational deflection.
- Superior High-Speed Capability: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces, reduced friction, and stable operation at the high limiting speed of 16,000 rpm.
- Optimized Load Capacity: The design is optimized to handle significant radial dynamic load (7178 lbf) and static load (9112 lbf), making it suitable for applications with demanding combined load conditions.
- Universal Matching Flexibility: The Universal Matchable (DGB) feature allows for simplified mounting in pre-determined sets (this bearing is part of a set of 3), enabling precise preload control in duplex or triplex arrangements for enhanced machine tool spindle performance.
- Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance within a temperature range of -30°C to 110°C.
71822 CDGB/P4 Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: Applications in PCB drilling, engraving, and high-frequency motors.
- Robotics: High-accuracy joints and arm assemblies.
- Medical Equipment: Dental handpieces and imaging device rotors.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation instruments.
