S7003 ACE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The S7003 ACE/P4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This duplex back-to-back (DB) arrangement provides superior stiffness and the ability to withstand combined loads, including significant radial and bidirectional axial loads. Manufactured to P4A tolerance class and featuring a phenolic cage, it is engineered for high-speed operation and reliable performance in high-precision machinery.
S7003 ACE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7003 | Bearing series and size designation (17mm bore, 35mm OD) |
| ACE | 25° contact angle, phenolic cage, extra light preload (Class A) |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DB | Duplex Back-to-Back mounting arrangement |
Structural Features and Performance Benefits
High Rigidity and Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and handles combined radial and axial loads from both directions. The 25° contact angle is optimized for axial load support.
Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation at limiting speeds up to 103,000 rpm. The precision P4A tolerance ensures minimal vibration and heat generation.
Sealed and Lubricated Design: As a sealed bearing, it is protected from contamination and comes pre-lubricated with grease, making it ready for immediate installation and long-term operation within its specified temperature range.
S7003 ACE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles for high-precision machining centers
- High-Speed Spindles in PCB drilling and routing equipment
- Precision Instrumentation and measuring devices
- Medical Equipment requiring quiet, precise rotation
- Robotic Arm Joints and automation systems
