71822 CDGA/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71822 CDGA/HCP4
Basic Information
System of measurement
Metric
Weight
0.45 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
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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71822 CDGA/HCP4 Bearing Product Overview & Core Advantages
The 71822 CDGA/HCP4 is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its defining feature is the ceramic ball and phenolic cage construction, which enables superior performance under demanding conditions. This bearing is designed to handle significant combined loads (radial and axial) simultaneously, offering exceptional operational reliability and a high limiting speed. Its P4 tolerance class ensures ultra-precision, making it ideal for applications where minimal runout and high rotational accuracy are critical.
71822 CDGA/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing designation, indicating the bearing size (110mm bore, 140mm OD, 16mm width). |
| CDGA | Signifies a universally matchable bearing with a 15° contact angle and extra light preload (Class A). This allows for precise axial play adjustment when mounted with other bearings. |
| HCP4 | Indicates the use of Hybrid Ceramic balls (H) and a Phenolic Resin cage (C), combined with a P4 super-precision tolerance class. |
71822 CDGA/HCP4 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The ceramic balls (Silicon Nitride) significantly reduce centrifugal forces and friction, enabling higher limiting speeds (16,000 rpm), generating less heat, and providing excellent electrical insulation and corrosion resistance.
- High Rigidity & Load Capacity: The 15° contact angle and robust design provide excellent high rigidity and the ability to handle substantial combined loads.
- Optimized High-Speed Performance: The lightweight, self-lubricating phenolic cage ensures stable operation at high rotational speeds, contributing directly to the high limiting speed.
- Precision Engineering: Manufactured to P4 tolerance class, this bearing guarantees minimal dimensional variation and superior running accuracy for the most demanding high-precision applications.
- Universal Matchability (SU): Designed to be mounted in sets (typically 3 bearings) to create a preloaded arrangement, optimizing system stiffness and accuracy.
71822 CDGA/HCP4 Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery requiring speed, precision, and reliability. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: High-speed measuring and testing equipment.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
- High-Frequency Motors and Spindles: Where electrical insulation and high-speed capability are paramount.
