S7009 ACE/P4ATBTB
Sealed Super Precision Angular Contact Ball Bearings
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S7009 ACE/P4ATBTB Bearing Product Overview & Core Advantages
The S7009 ACE/P4ATBTB is a precision angular contact ball bearing supplied as a Triplex Back-to-Back (TBT) matched set. Engineered to the exacting P4A tolerance class, this configuration delivers exceptional system rigidity and stability, making it ideal for applications requiring high running accuracy and the capacity to handle combined radial and axial loads. The pre-greased and sealed design ensures long-term, maintenance-free operation in demanding environments.
S7009 ACE/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
- S7009: Basic series designation for a 45mm bore, 75mm OD angular contact ball bearing.
- ACE: Internal design suffix, indicating specific internal geometry and a 25° contact angle optimized for axial load capacity.
- P4A: Denotes a high-precision tolerance class with even tighter specifications than standard P4, ensuring minimal runout and superior rotational accuracy.
- TBT: Specifies the bearing arrangement as a Triplex Back-to-Back (3 bearings). This matched set provides maximum rigidity against moment loads.
- Sealed / Greased: The bearing comes with integral seals and is pre-lubricated with grease, offering protection from contamination and ready-to-install convenience.
S7009 ACE/P4ATBTB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back arrangement of three bearings creates an extremely rigid support system, capable of withstanding heavy combined loads and significant moment loads. The 25° contact angle further enhances the axial load carrying capability.
Precision Performance: Manufactured to P4A tolerance standards and featuring a lightweight, robust phenolic cage, this bearing set guarantees smooth operation, high limiting speed (46,000 rpm), and minimal vibration for critical spindles and machinery.
Durability & Maintenance-Free Operation: Constructed from chrome steel for both rings and balls, the bearing ensures long service life. The integral seals retain the factory-applied grease, shielding the precision internals from contaminants and providing reliable, long-term lubrication within the specified temperature range (-30°C to 110°C).
S7009 ACE/P4ATBTB Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for the most demanding applications, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision High-Frequency Spindles
- Robotic Arm Rotary Joints
- Advanced Pumps and Compressors
