7005 CD/P4ADBG2GMM
7000 Series Super Precision Angular Contact Ball Bearings
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7005 CD/P4ADBG2GMM Bearing Product Overview & Core Advantages
The 7005 CD/P4ADBG2GMM is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement comes pre-loaded, providing superior stiffness and stability to handle combined radial and axial loads simultaneously. Manufactured to the stringent P4A tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed, high-precision machinery where reliability is paramount. Its compact design and optimized internal geometry contribute to outstanding performance in demanding operational conditions.
7005 CD/P4ADBG2GMM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series, indicating a 25 mm bore, 47 mm OD, and 24 mm width. |
| C | Specifies a 15° contact angle, optimized for high-speed applications with significant axial loads. |
| D | Indicates the bearing is part of a duplex pair. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
| DB | Signifies the back-to-back mounting arrangement, which provides high moment rigidity. |
| G | Specifies a preload level (light). |
| MM | Indicates the bearing is grease lubricated with a specific, high-performance grease. |
7005 CD/P4ADBG2GMM Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement with a preload creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning.
- Superior Load Capacity: The angular contact design with a 15° contact angle is engineered to support significant combined loads, handling both radial and axial forces efficiently in high-speed operations.
- Optimized High-Speed Performance: The phenolic resin cage offers low weight and excellent performance at high rotational speeds, contributing to the bearing's high limiting speed of 103,000 rpm. The open design and precision grinding minimize friction and heat generation.
- Precision & Longevity: Manufactured from chrome steel for rings and balls, and built to P4A tolerance class, this bearing guarantees low noise, minimal vibration, and extended service life in precision applications.
7005 CD/P4ADBG2GMM Bearing Typical Application Areas
This high-precision, pre-loaded duplex bearing is ideally suited for applications requiring extreme accuracy and rigidity, such as:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Dental Equipment (e.g., high-speed handpieces)
- Aerospace Actuation Systems
- Robotic Arm Joints and Precision Drives
