7034 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 7034 ACD/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to P4 (ABEC-7) tolerance class, it delivers superior running accuracy for demanding industrial environments. Its key advantage lies in its ability to accommodate combined loads—significant radial loads and substantial axial loads in one direction—thanks to its specific 25° contact angle. The phenolic cage and preload capability contribute to its high-speed performance and operational stability, making it an ideal solution for high-rigidity, precision spindle systems.
7034 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACD | 25° Contact Angle Design | Optimized for handling high axial loads in one direction while maintaining radial load capacity |
| P4A | P4 (ABEC-7) Tolerance Class with Specific Internal Clearance | Ensures ultra-precise running accuracy and dimensional stability for high-performance applications |
Structural Features and Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance class with tight dimensional tolerances (bore: -0.01mm to 0, OD: -0.013mm to 0) ensuring exceptional running accuracy and system stability.
- Optimized Load Capacity: The 25° contact angle enables efficient handling of combined radial and axial loads, with dynamic load rating of 44,775 lbf and static load rating of 52,200 lbf.
- High-Speed Performance: Phenolic cage construction reduces friction and enables operation at limiting speeds up to 7,000 rpm, while the open design facilitates efficient lubrication management.
- Preload Capability: Designed to accommodate preload, enhancing system stiffness and rotational accuracy for precision applications.
- Premium Material Construction: Chrome steel rings and balls provide excellent wear resistance and durability across a temperature range of -30° to 110°C.
7034 ACD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications requiring exceptional accuracy and rigidity
- Precision Industrial Equipment: High-speed machining spindles, precision grinding machines, and specialized manufacturing equipment
- Robotics and Automation: High-precision robotic joints and automation systems demanding accurate positioning and high rigidity
- Aerospace and Defense: Guidance systems, radar equipment, and other precision instruments requiring P4 tolerance performance
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
