S71901 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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S71901 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S71901 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This sealed metric bearing features a single, universal-match design with an extra light preload (Class A), making it ideal for configurations requiring high rigidity and minimal operational deflection. Its ability to accommodate combined radial and axial loads simultaneously, coupled with its compact 12mm bore design, positions it as a superior solution for high-speed spindles and precision instruments where space and performance are critical.
S71901 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact bearings |
| 1901 | Size designation (12mm bore, 24mm OD, 6mm width) |
| AC | 25° contact angle |
| DGA | Duplex arrangement, ground preload (Universal Matchable - SU) |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) |
| P4A | High precision tolerance class (superior to ABEC 7) |
S71901 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling higher operating speeds and extended service life compared to all-steel bearings.
Phenolic Cage: The lightweight and robust phenolic resin cage contributes to excellent high-speed performance, providing stability and reduced centrifugal forces at elevated rotational speeds.
Sealed & Grease-Lubricated: The integrated seals retain grease and effectively exclude contaminants, resulting in a maintenance-free design suitable for the specified temperature range of -30°C to 110°C.
High Precision & Rigidity: Manufactured to P4A tolerance class with an extra light preload, this bearing delivers exceptional running accuracy, minimizes system vibration, and provides the high rigidity necessary for precise positioning applications.
S71901 ACDGA/HCP4A Bearing Typical Application Areas
- High-Frequency CNC Spindles for milling and grinding
- Precision Instrumentation and measuring equipment
- High-Speed Automation robots and actuators
- Medical Device motors and dental handpieces
- Aerospace auxiliary systems and instrumentation
