S7026 ACD/P4ATBTC
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7026 ACD/P4ATBTC
Basic Information
System of measurement
Metric
Weight
9.77 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
130 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
200 mm
Outside diameter tolerance
-0.004mm to 0
Width
99 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
22.225 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
69075 lbf
Radial static load rating
101250 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Grease
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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S7026 ACD/P4ATBTC Bearing Product Overview & Core Advantages
The S7026 ACD/P4ATBTC is a metric system, P4A super-precision angular contact ball bearing designed for triplex back-to-back (TBT) mounting. Engineered for applications demanding extremely high rigidity and exceptional running accuracy, this bearing is capable of supporting combined radial and axial loads simultaneously. Its sealed design and pre-lubrication ensure long-term operational reliability in demanding environments, making it ideal for high-performance spindles and precision machinery.
S7026 ACD/P4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACD | 25° Contact Angle | Optimized for high axial load capacity and rigidity. |
| P4A | Super Precision Tolerance Class | Guarantees extremely tight running accuracy and minimal vibration for high-speed applications. |
| TBT | Triplex Back-to-Back Matched Set | Three bearings supplied as a pre-matched set for maximum system rigidity and moment load capacity. |
| Sealed | Integrated Seals | Provides superior contamination exclusion, protecting the bearing and its lubrication. |
S7026 ACD/P4ATBTC Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Stiffness: The triplex back-to-back arrangement creates an extremely rigid bearing system, capable of withstanding significant moment loads, which is critical for maintaining precision under heavy cutting forces or misalignment.
- Superior Load Capacity: The 25° contact angle and robust construction provide an excellent balance between high radial and axial load ratings, making it suitable for combined loading conditions.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the P4A precision grade ensures smooth operation, contributing to a high limiting speed of 11,000 rpm.
- Long Service Life & Reduced Maintenance: The integrated seals prevent the ingress of contaminants, and the bearing is pre-lubricated with grease, offering a wide operating temperature range (-30°C to 110°C) for a long, maintenance-free service life.
S7026 ACD/P4ATBTC Bearing Typical Application Areas
This high-precision, high-rigidity bearing is specifically designed for the most demanding applications, including:
- High-Speed Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Industrial High-Speed Pumps and Compressors
