S7015 FE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7015 FE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7015 FE/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered with a 15° contact angle and an Extra Light (A) preload, this bearing delivers superior performance in high-speed spindle systems. Its universal matchable (SU) design allows for flexible mounting in duplex pairs (DB or DF) to handle combined loads, including significant radial and bidirectional axial forces. The use of ceramic balls and a phenolic cage significantly reduces centrifugal forces, enabling higher limiting speeds and providing excellent dimensional stability under thermal variations.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Basic bearing series and size designation (75mm bore, 115mm OD). |
| FE | Sealed on both sides, offering superior protection against contamination. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for enhanced speed and life. |
| P4A | Ultra-high precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DGA | Universal Matchable (SU) with Extra Light preload (Class A). |
S7015 FE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized bearing dimensions and 15° contact angle provide a robust structure capable of withstanding high combined loads. The universal matchable design allows for pairing to create a highly rigid, preloaded set.
- Superior High-Speed Performance: The combination of ceramic balls (lower density reduces centrifugal force) and a lightweight phenolic cage enables a high limiting speed of 28,000 rpm. This makes it an ideal high-speed bearing for spindle applications.
- Enhanced Precision and Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The sealed design (FE) protects the high-performance grease from contamination, resulting in a long, maintenance-free service life within its specified temperature range.
S7015 FE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications demanding extreme accuracy and surface finish.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Advanced Medical Equipment: High-speed centrifuges and dental handpieces.
