S71907 CB/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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S71907 CB/HCP4ADGA Bearing Product Overview & Core Advantages
The S71907 CB/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. This sealed bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and bidirectional axial loads. Its compact design, featuring a 35 mm bore and 55 mm outside diameter, makes it ideal for space-constrained, high-reliability machinery. Manufactured to a super-precision P4A tolerance class and preloaded for extra-light conditions, it delivers superior running accuracy and rotational stability.
S71907 CB/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 719 | High-precision angular contact bearing series |
| 07 | Bore diameter code (35 mm) |
| C | 15° contact angle |
| B | 40° contact angle |
| HC | Hybrid ceramic balls (Silicon Nitride) |
| P4A | Super precision tolerance class (ABEC 7 / ISO P4) |
| DGA | Sealed on both sides with high-performance grease |
S71907 CB/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The use of ceramic balls with chrome steel rings significantly reduces rotational mass, lowers friction, and enables higher operating speeds. This construction also provides enhanced resistance to wear and operates effectively across a wide temperature range from -30°C to 110°C.
High Rigidity & Load Capacity: The double row design provides exceptional rigidity, making it capable of withstanding combined radial and axial loads from both directions. With a dynamic load rating of 1872 lbf and a static load rating of 1654 lbf, it offers robust performance in demanding applications.
Optimized High-Speed Performance: The phenolic cage ensures minimal friction and excellent guidance for the ceramic balls, contributing to the bearing's high limiting speed of 56,000 rpm. The universal matchable (SU) design allows for flexible mounting arrangements in pairs without requiring specific orientation.
Maintenance-Free Operation: The integral seals (DGA) effectively retain grease and exclude contaminants, while the pre-applied high-performance grease ensures long-term, maintenance-free operation throughout the bearing's service life.
S71907 CB/HCP4ADGA Bearing Typical Application Areas
The S71907 CB/HCP4ADGA is ideally suited for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Instrumentation: Measuring devices, optical equipment
- High-Speed Motors: CNC spindle motors, dental handpieces
- Aerospace Components: Gyroscopes, navigation systems
- Semiconductor Manufacturing: Wafer handling robots, precision stages
