7013 ACD/P4ATBTG99
7000 Series Super Precision Angular Contact Ball Bearings
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7013 ACD/P4ATBTG99 Bearing Product Overview & Core Advantages
The 7013 ACD/P4ATBTG99 is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex matched set features three bearings arranged in a back-to-back (TBT) configuration, providing superior stability and the ability to withstand combined loads (radial and axial). Manufactured to P4A tolerance class, it ensures high running accuracy and is preloaded for immediate use, making it ideal for high-precision, high-rigidity systems.
7013 ACD/P4ATBTG99 Bearing Model Code Explained, Specifications & Naming Convention
- 7013: Basic bearing series, indicating a 65mm bore, 100mm OD, and 18mm single bearing width.
- ACD: Angular Contact design with a 25° contact angle.
- P4A: High-Precision Tolerance Class, specifying extremely tight dimensional and running accuracy.
- TBT: Triplex Back-to-Back matched set arrangement, consisting of three bearings.
- G99: Indicates a specific preload level applied to the matched set for optimal rigidity.
7013 ACD/P4ATBTG99 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back arrangement creates a highly rigid bearing system capable of supporting significant combined radial and axial loads. The 25° contact angle is optimized for handling substantial thrust loads.
Precision Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures smooth operation, low vibration, and high running accuracy, which is critical for precision applications.
Optimized for High-Speed Operation: The lightweight phenolic cage and precision-ground components contribute to a high limiting speed of 31,000 rpm, making it suitable for high-speed spindles.
Preloaded & Ready-to-Use: The set is supplied preloaded (G99), eliminating the need for complex adjustment during installation and ensuring immediate, optimal performance.
7013 ACD/P4ATBTG99 Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for:
- Machine Tool Spindles (e.g., milling, grinding, and turning centers)
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Other machinery requiring high rigidity and exceptional rotational accuracy.
