7005 ACE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7005 ACE/HCP4BVG275 Bearing Product Overview & Core Advantages
The 7005 ACE/HCP4BVG275 is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Its design is optimized to simultaneously handle combined radial and axial loads. A key advantage is its ceramic ball construction, which contributes to lower friction, higher speed capability, and extended service life. Manufactured to a P4 (ABEC-7) tolerance class, this bearing ensures superior running accuracy and is preloaded for immediate high-rigidity operation, making it ideal for high-reliability, high-speed machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Standard bearing series designation, indicating a 25mm bore, 47mm OD, and 12mm width. |
| ACE | Indicates a 25° contact angle and specific internal design optimized for high-speed operation. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4 | Denotes the P4 tolerance class (ABEC-7), ensuring ultra-precise dimensions and runout. |
| BVG275 | Specifies a preload level and the use of a specific, high-performance lubricant suitable for the stated temperature range. |
7005 ACE/HCP4BVG275 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation, enabling higher limiting speeds and longer life.
High Rigidity & Precision: The bearing is supplied with a preload, which eliminates internal clearance. This results in superior shaft positioning accuracy, high system stiffness, and reduced noise and vibration levels.
Optimized for High Speeds: The phenolic resin cage is lightweight and exhibits excellent performance at high rotational speeds, contributing to the bearing's impressive 50,000 rpm speed limit.
Superior Load Capacity: With a 25° contact angle, this bearing is expertly designed to handle significant axial loads in one direction in combination with radial loads.
7005 ACE/HCP4BVG275 Bearing Typical Application Areas
The 7005 ACE/HCP4BVG275 is ideally suited for high-performance applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring maximum precision and rigidity.
- High-Frequency Motors & Spindles: Used in PCB drilling, dental handpieces, and other applications where extreme rotational speeds are critical.
- Precision Robotics: In robot arm joints and actuators where accuracy, responsiveness, and durability are paramount.
- Aerospace & Defense Systems: For gyroscopes, instrumentation, and other critical components requiring high reliability.
