S7005 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Ball & Washer Dimensions
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S7005 ACE/P4ADGA Bearing Product Overview & Core Advantages
The S7005 ACE/P4ADGA is a precision angular contact ball bearing designed for high-performance applications requiring exceptional rigidity and accuracy. This sealed bearing features a universal matchable (SU) design, allowing two bearings to be mounted in any arrangement (back-to-back, face-to-face, or tandem) to optimize performance for specific load conditions. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for applications demanding minimal vibration and high rotational stability. The combination of a 25° contact angle and extra light preload (Class A) provides superior handling of combined loads (radial and axial) simultaneously, delivering high reliability in compact installations.
S7005 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Advantage |
|---|---|---|
| ACE | 25° contact angle, phenolic cage, universal matchable design | Optimized for high-speed operation and versatile mounting configurations |
| P4A | High-precision tolerance class (equivalent to ABEC 7) | Ensures exceptional running accuracy and smooth operation |
| DGA | Sealed on both sides, pre-lubricated with grease | Provides maintenance-free operation and superior contamination protection |
S7005 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design and universal matching capability create a highly rigid bearing system capable of handling significant combined radial and axial loads from any direction. The optimized bearing dimensions (25mm bore, 47mm OD, 24mm width) provide maximum load capacity in a compact footprint.
High-Speed Performance: The phenolic cage and precision-ground chrome steel components enable a limiting speed of 83,000 rpm, making it suitable for demanding high-speed applications. The 25° contact angle optimally balances axial and radial load capacity for superior high-speed stability.
Maintenance-Free Operation: Factory-sealed and pre-lubricated with high-quality grease, the bearing offers reliable performance across a wide temperature range (-30°C to 110°C) without requiring relubrication. This sealed construction protects against contamination while maintaining optimal lubrication throughout the bearing's service life.
S7005 ACE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring P4A accuracy
- High-Speed Electric Motors: Spindle motors and servo motors demanding minimal vibration
- Precision Instrumentation: Medical equipment, optical instruments, and measuring devices
- Industrial Pumps & Compressors: Applications requiring reliable performance under combined loads
- Robotics & Automation: Precision joints and positioning systems needing high rigidity and accuracy
