7026 ACD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7026 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 7026 ACD/P4ATBTB is a precision angular contact ball bearing configured in a triplex back-to-back (TBT) matched set. Engineered for applications demanding exceptional rotational accuracy and rigidity, this bearing arrangement is preloaded to Light / Class B specifications, ensuring minimal axial and radial deflection under load. Its design is optimized to handle combined loads, particularly high thrust loads in both directions, making it a cornerstone for high-performance spindle systems. Manufactured to the exacting P4A tolerance class, it guarantees superior running accuracy and is pre-lubricated for immediate installation and reliable operation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Basic bearing designation indicating a 130 mm bore, 200 mm OD, and 99 mm width. |
| ACD | Angular Contact design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class superior to ABEC 7, ensuring extremely tight dimensional and running accuracy. |
| TBT | Denotes a Triplex Back-to-Back matched set of three bearings, providing maximum system rigidity and moment load capacity. |
7026 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Load Capacity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system that effectively resists moment loads and complex combined loads. This configuration significantly enhances the overall stiffness of the application, such as a machine tool spindle.
High-Speed Capability: The phenolic resin cage is lightweight and possesses excellent sliding properties, contributing to lower friction, reduced heat generation, and suitability for the specified limiting speed of 11,000 rpm.
Precision Performance: The P4A tolerance class and light preload ensure minimal runout and vibration, which is critical for achieving superior surface finishes and machining accuracy.
Robust Material Construction: Manufactured from chrome steel for both rings and balls, the bearing offers high fatigue life and durability under demanding operating conditions.
7026 ACD/P4ATBTB Bearing Typical Application Areas
The 7026 ACD/P4ATBTB is ideally suited for high-precision, high-rigidity applications, including:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling spindles.
- High-Frequency Motor Spindles: Applications requiring high rotational speed and accuracy.
- Precision Rotary Tables: Indexing and positioning systems.
- Aerospace Test Equipment: High-speed simulators and precision rigs.
