S7017 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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S7017 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S7017 ACDGA/HCP4A is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered as a single bearing with a Universal Matchable (SU) designation, it can be precisely paired with other bearings to form a matched set of three, ensuring optimal preload and rigidity in the final assembly. Its core advantages include the ability to handle combined loads (radial and axial) efficiently, facilitated by a 25° contact angle. The use of ceramic balls and a phenolic cage contributes to superior high-speed performance, lower operating temperatures, and extended service life, making it an ideal choice for high-reliability, high-precision machinery.
Model Code In-Depth Explanation
- S7017: Basic bearing series, indicating a 85 mm bore, 130 mm outside diameter, and 22 mm width.
- AC: Angular Contact design.
- D: High-Grade Ceramic Ball material (Silicon Nitride).
- GA: Universal Matchable bearing, ground for specific axial clearance when mounted in a matched set.
- /HC: Hybrid Ceramic bearing designation.
- P4A: Denotes an ultra-precision tolerance class (superior to ABEC 7 / ISO P4), ensuring extremely tight dimensional and running accuracy.
S7017 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance class with a bore and OD tolerance of -0.004mm to 0, this bearing provides exceptional running accuracy and system stability. The Extra light preload (Class A) minimizes deflection under load.
Enhanced Speed and Durability: The combination of ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces, enabling a high limiting speed of 17,000 rpm. This hybrid construction also offers increased stiffness and reduced heat generation.
Superior Load Capacity: With a dynamic load rating of 14,332 lbf and a static load rating of 13,950 lbf, the bearing is robust enough to handle significant combined loads.
Sealed and Lubricated for Life: As a sealed unit pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
S7017 ACDGA/HCP4A Bearing Typical Application Areas
The S7017 ACDGA/HCP4A is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and rotary actuators requiring high positional accuracy.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace and Defense Systems: In gyroscopes, radar systems, and other critical instrumentation.
