7004 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7004 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7004 ACD/P4ADGB is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 25° contact angle and light preload (Class B), enabling it to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and precision machinery where minimal runout and vibration are critical.
7004 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | High precision tolerance class (exceeds ABEC 7 standards) |
| DGB | Universal Matchable (SU) arrangement - bearings can be paired in any combination |
7004 ACD/P4ADGB Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
High-Speed Capability: The phenolic resin cage and optimized internal design enable operation at 103,000 rpm limiting speed, making it suitable for demanding spindle applications.
Superior Load Capacity: With a 25° contact angle and light preload, the bearing effectively handles combined radial and axial loads (dynamic rating: 3038 lbf, static rating: 1834 lbf).
Universal Matching: The SU designation allows flexible bearing arrangements without selective matching, simplifying installation and maintenance.
Premium Materials: Constructed from chrome steel for rings and balls, providing excellent wear resistance and durability in precision applications.
7004 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and optical devices requiring minimal runout
- High-Speed Motors - Servo motors and spindle drives demanding precision and reliability
- Medical Equipment - Dental handpieces and laboratory automation systems
- Aerospace Components - Guidance systems and precision actuators
