7005 FE/HCP4ADGAGMM0
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7005 FE/HCP4ADGAGMM0 Bearing Product Overview & Core Advantages
The 7005 FE/HCP4ADGAGMM0 is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Its core advantages stem from its P4A super-precision tolerance class and ceramic ball construction, enabling superior high-speed capability and extended service life. This bearing is designed as a universally matchable (SU) set, allowing for flexible mounting configurations to achieve optimal rigidity and handle combined loads effectively. It is pre-lubricated with grease for immediate operation across a wide temperature range.
7005 FE/HCP4ADGAGMM0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic series and size designation (Bore Diameter: 25 mm, Outside Diameter: 47 mm, Width: 24 mm). |
| FE | Hydrocarbon grease lubrication, optimized for high-speed operation. |
| HC | Hybrid Ceramic construction, indicating ceramic balls for reduced friction and heat generation. |
| P4A | Super-precision tolerance class, defining extremely tight dimensional and running accuracy. |
| DG | Universal matchable (SU) designation. Two bearings can be paired in a Duplex arrangement (e.g., DB, DF, DT) to support combined loads. |
| A | Extra light preload (Class A), minimizing friction for maximum high-speed performance while ensuring sufficient rigidity. |
| GMM | Designation for the glass fiber reinforced phenolic resin cage material. |
7005 FE/HCP4ADGAGMM0 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of ceramic balls significantly reduces rotational mass and friction, leading to lower operating temperatures and a higher limiting speed of 85,000 rpm. This construction also enhances resistance to wear and electrical erosion.
Precision & Rigidity: Manufactured to P4A super-precision standards, this bearing ensures minimal runout and vibration. The 18° contact angle and universal matchable (SU) design allow for the creation of highly rigid bearing sets that can accommodate significant combined radial and axial loads.
High-Speed Cage: The phenolic cage is lightweight and possesses excellent slip characteristics, which is critical for maintaining stability and integrity at ultra-high speeds.
Optimized Lubrication: Pre-lubricated with a high-performance hydrocarbon grease, the bearing is ready for immediate use and operates reliably within a temperature range of -30°C to 110°C.
7005 FE/HCP4ADGAGMM0 Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-speed Robotic Drives and Servo Motors
- Aerospace Instrumentation and Control Systems
- Medical and Dental Drill Handpieces
- Semiconductor Manufacturing Equipment
