7007 ACE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7007 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 7007 ACE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As part of the Universal Matchable (SU) series, it is engineered to be paired with an identical bearing to form a preloaded duplex set, delivering superior high rigidity and rotational precision. Its P4A tolerance class and Extra light preload (Class A) make it ideal for high-speed spindles and other precision machinery where minimal runout and high dynamic performance are critical.
7007 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 28mm width) |
| ACE | Contact angle of 25° and specific internal design for high axial load capacity |
| P4A | High precision tolerance class for superior running accuracy |
| DGA | Universal Matchable (SU) designation, indicating the bearing is supplied lubricated and ready for pairing |
7007 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The 25° contact angle and Universal Matchable (SU) design allow two bearings to be mounted in a preloaded arrangement, significantly increasing system stiffness and reducing axial and radial play. This is essential for applications requiring high positional accuracy.
Optimized for Combined Loads: The angular contact design efficiently supports combined radial and axial loads simultaneously. The high dynamic load rating of 4005 lbf ensures long service life under demanding operating conditions.
High-Speed Capability: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 56,000 rpm, making it suitable for high-speed applications like machine tool spindles.
Pre-Lubricated & Ready for Use: The bearing is supplied with lubrication, simplifying installation and ensuring immediate, reliable operation within its specified temperature range of -30°C to 110°C.
7007 ACE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Where superior rigidity and speed are paramount.
- Precision Instrumentation: Medical devices, optical scanners, and measuring equipment.
- Robotics: High-accuracy joints and rotary actuators.
