S7017 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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S7017 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7017 ACE/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Its double row design provides a compact solution capable of supporting combined loads (radial and bidirectional axial loads) simultaneously. Manufactured to a P4A tolerance class and featuring a 25° contact angle, this bearing delivers superior running accuracy, high rigidity, and stable performance under high-speed operation, making it ideal for ultra-precision spindles and machinery.
S7017 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7017 | Basic bearing series and size designation (85mm bore, 130mm OD). |
| ACE | Designates 25° contact angle and specific internal design optimizations. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4A | Specifies the high-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DGA | Signifies a Universal Matchable (SU) bearing in a duplex set with an Extra Light (A) preload. |
S7017 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (17,000 rpm). This construction also offers superior resistance to wear and electrical arcing.
High Rigidity & Load Capacity: The double row angular contact design provides a rigid support system, effectively handling combined radial and axial loads from both directions without the need for complex bearing arrangements.
Optimized for High-Speed: The lightweight phenolic resin cage (TN9 style) ensures excellent dimensional stability and low friction at high speeds, contributing to the bearing's exceptional dynamic performance.
Precision & Preload: Manufactured to P4A tolerances and supplied as a universally matchable set with a defined extra light preload, this bearing guarantees precise shaft positioning, minimal runout, and immediate operational readiness upon installation.
Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range (-30°C to 110°C).
S7017 ACE/HCP4ADGA Bearing Typical Application Areas
The S7017 ACE/HCP4ADGA is specifically designed for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Instrumentation: High-accuracy measuring and testing equipment.
- High-Frequency Motors & Spindles: Electric motor spindles for PCB drilling and routing.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and other critical rotating assemblies.
