S71910 ACE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S71910 ACE/HCP4ADT Bearing Product Overview & Core Advantages
The S71910 ACE/HCP4ADT is a super-precision angular contact ball bearing designed for the most demanding high-performance applications. This duplex tandem (DT) matched set delivers exceptional high-speed capability and high rigidity, making it ideal for machine tool spindles and other precision machinery. Its configuration allows it to accommodate combined loads (radial and axial) efficiently, while the P4A tolerance class ensures superior running accuracy and system stability. The combination of a ceramic ball material and phenolic cage contributes to lower friction, reduced heat generation, and extended service life.
S71910 ACE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71910 | Basic bearing designation, indicating a 50 mm bore, 72 mm OD, and 24 mm width. |
| ACE | Signifies a 25° contact angle and specific internal design optimized for high-speed operation. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride), offering advantages in speed, stiffness, and lifespan. |
| P4A | Denotes an ultra-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
| DT | Specifies the Duplex Tandem arrangement of the two bearings in the set, designed to handle high unidirectional thrust loads. |
S71910 ACE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex tandem arrangement stacks two bearings to provide maximum axial rigidity and support for heavy thrust loads in one direction. The 25° contact angle is optimized for a balance of radial and axial load capacity.
Superior High-Speed Performance: The hybrid ceramic balls significantly reduce centrifugal forces and friction, while the lightweight phenolic resin cage ensures stability and low inertia at the limiting speed of 34,000 rpm.
Precision and Longevity: Manufactured to P4A tolerance standards, this bearing guarantees exceptional running accuracy. The combination of premium materials and precision grinding results in low noise, low torque, and a long operational life under demanding conditions.
S71910 ACE/HCP4ADT Bearing Typical Application Areas
The S71910 ACE/HCP4ADT is engineered for high-performance applications where speed, precision, and rigidity are paramount. Key industries and machinery include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: High-accuracy robot arm joints and rotary units.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units.
- High-Frequency Motors & Spindles: PCB drilling spindles, dental handpieces.
