7000 ACE/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7000 ACE/P4A Bearing Product Overview & Core Advantages
The 7000 ACE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior running accuracy. Designed to accommodate combined loads, it efficiently supports both radial loads and substantial axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures exceptional dimensional precision and rotational accuracy, making it ideal for high-speed spindles and other precision machinery. The phenolic resin cage and optimized internal geometry contribute to its high-speed capabilities and smooth operation.
7000 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 | Basic bearing series designation, indicating a metric, single-row angular contact ball bearing with a 10mm bore. |
| ACE | Internal design suffix, indicating a 25° contact angle and optimized internal geometry for high-speed performance. |
| P4A | Tolerance class suffix, denoting a P4 (ABEC-7) precision grade with specific running accuracy requirements. |
7000 ACE/P4A Bearing Structural Features & Performance Benefits
- High-Speed Performance: The lightweight phenolic resin cage and optimized internal design enable a high limiting speed of 127,000 rpm, reducing centrifugal forces and ensuring stable operation.
- High Rigidity & Load Capacity: The 25° contact angle is optimized to handle significant one-direction axial loads in addition to radial loads, providing excellent rigidity for precise shaft positioning.
- Precision Engineering: Manufactured to P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Pre-lubricated & Ready-to-Use: The bearing comes pre-lubricated, simplifying installation and providing immediate, reliable performance within its specified temperature range.
7000 ACE/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for demanding applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Robotics (Arm joints, precision actuators)
- Medical Equipment (Dental handpieces, laboratory centrifuges)
