S7005 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7005 ACDGB/P4A Bearing Product Overview & Core Advantages
The S7005 ACDGB/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered with a 25° contact angle and P4A tolerance class, this bearing excels at handling combined loads—simultaneously supporting significant radial and axial forces. Its light preload (Class B) ensures smooth, precise operation with minimal runout, making it ideal for high-speed spindles and other precision machinery where high rigidity and positional accuracy are critical. The phenolic cage and sealed design further enhance its performance in demanding environments.
S7005 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7005: Basic model number denoting a metric series, 25mm bore diameter angular contact ball bearing.
- AC: Angular Contact design.
- D: High contact angle (25° in this specification).
- GB: Indicates a universal matchable bearing designed for Universal Matchable (SU) arrangement in sets of two.
- P4A: Tolerance class exceeding ABEC 7/ISO P4 standards, specifying extremely tight dimensional and running accuracy tolerances.
S7005 ACDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering & High Rigidity: Manufactured to P4A tolerance class with a 25° contact angle, this bearing provides superior high rigidity and stable rotational accuracy, essential for minimizing deflection under load.
Optimized Load Capacity: The design is optimized to handle combined loads effectively. The specified radial dynamic load rating of 2077 lbf and radial static load rating of 1125 lbf demonstrate its robust performance.
High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 83,000 rpm. This makes it a true high-speed bearing.
Sealed & Lubricated for Life: The sealed construction with grease lubrication protects against contamination and retains lubricant, offering long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S7005 ACDGB/P4A Bearing Typical Application Areas
The S7005 ACDGB/P4A is ideally suited for high-performance applications including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Frequency Motors: Spindles for PCB drilling and small motor applications.
- Robotics: Articulated arms and precision joints requiring high accuracy and rigidity.
