71804 CDGC/P4
71800 Series Super Precision Angular Contact Ball 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
71804 CDGC/P4 Bearing Product Overview & Core Advantages
The 71804 CDGC/P4 is a single-row angular contact ball bearing designed for applications demanding high precision and superior running accuracy. Operating under the stringent P4 tolerance class, this bearing is engineered to handle combined loads (simultaneous radial and axial loads) efficiently. Its 15° contact angle provides excellent axial load capacity in one direction. The universal matching (SU) designation allows for flexible mounting arrangements in sets, enabling the creation of highly rigid and precise bearing systems. Pre-lubricated and featuring a phenolic resin cage, it is ready for immediate installation in demanding, high-speed environments.
71804 CDGC/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71804 | Basic bearing series and size designation (20mm bore, 32mm OD, 7mm width). |
| C | Specifies a 15° contact angle. |
| DG | Indicates the bearing is part of a Universal Matchable (SU) pair. "C" and "DG" together define the universal pairing configuration. |
| P4 | Denotes a high-precision tolerance class per ISO standards, ensuring extremely tight dimensional and running accuracy. |
71804 CDGC/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance with a moderate preload (Class C), this bearing delivers exceptional running accuracy and system stiffness, minimizing deflection under load.
- Optimized for Combined Loads: The angular contact design with a 15° contact angle is specifically engineered to support significant axial loads in one direction in addition to radial loads.
- High-Speed Capability: The lightweight and robust phenolic resin cage is ideal for high-speed applications, contributing to a high limiting speed of 100,500 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Universal Matching (SU): This feature allows two bearings to be mounted in a face-to-face or back-to-back arrangement to share loads, creating a compact and highly rigid bearing set capable of handling complex load conditions, including moment loads.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and long service life.
71804 CDGC/P4 Bearing Typical Application Areas
The 71804 CDGC/P4 is ideally suited for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Machines
- High-Speed Pumps and Compressors
- Robotic Arms and Precision Gearboxes
