71924 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71924 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 71924 CDGA/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. As a single bearing with a 15° contact angle and Extra light preload (Class A), it is optimized to handle combined radial and axial loads simultaneously. Its construction using ceramic balls and a phenolic cage contributes to superior high-speed performance and reduced rotational mass. Manufactured to a P4A tolerance class, this bearing guarantees ultra-precise running accuracy, making it ideal for the most demanding high-precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71924 | Basic bearing series and size designation (120mm bore, 165mm OD, 22mm width). |
| CDGA | Indicates a Universal Matchable (SU) bearing designed to be supplied in a matched set of 3 for precise preload and rigidity control. |
| HCP4A | Specifies the P4A tolerance class for ultra-high dimensional and running accuracy, along with hybrid ceramic balls for enhanced performance. |
71924 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls significantly reduces weight and inertia, lowers operating temperature, and provides superior high-speed capability compared to all-steel designs. It also offers improved resistance to wear and electrical arcing.
- Phenolic Resin Cage: The phenolic cage is lightweight and possesses excellent slip characteristics, contributing to lower friction, higher limiting speeds, and smooth operation under high acceleration.
- Precision & Rigidity: Manufactured to ABEC 7 / P4A precision standards with an Extra light preload, this bearing provides maximum running accuracy and system rigidity with minimal friction and heat generation.
- Universal Matching Design: The Universal Matchable (SU) feature allows bearings to be mounted in any combination (back-to-back, face-to-face, or tandem) without a loss in preload, offering exceptional flexibility in spindle design.
71924 CDGA/HCP4A Bearing Typical Application Areas
The 71924 CDGA/HCP4A is specifically designed for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes.
- High-Frequency Motors & Spindles: Applications requiring very high rotational speeds.
- Precision Instrumentation: Medical devices, semiconductor manufacturing equipment, and coordinate measuring machines.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
