S7013 ACD/P4ATBTB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7013 ACD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
1.3 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
54 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
19170 lbf
Radial static load rating
23850 lbf
Limiting speed
31 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7013 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The S7013 ACD/P4ATBTB is a high-precision, triple-matched angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This P4A tolerance class bearing is configured in a Back-to-Back (TBT) arrangement, providing superior stability and the ability to withstand significant combined radial and axial loads from both directions. Its sealed design with phenolic cage and grease lubrication ensures reliable, long-term performance in high-speed and high-rigidity environments, making it an ideal choice for precision spindles and machine tools.
S7013 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACD | Angular Contact, 25° Contact Angle | Optimized for handling combined loads, particularly thrust loads. |
| P4A | High Precision Tolerance Class (Superior to ABEC 7) | Ensures minimal runout and vibration for ultra-precise applications. |
| TBT | Triplex Back-to-Back Matched Set | Provides high moment stiffness and excellent operational stability. |
S7013 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The triplex back-to-back arrangement of three bearings creates an extremely rigid bearing system, capable of resisting complex moment loads and maintaining precise shaft positioning under heavy cutting forces.
- High Load Capacity: The 25° contact angle and robust construction enable high radial dynamic load rating of 19,170 lbf and a radial static load rating of 23,850 lbf, suitable for significant combined loads.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the grease lubrication and sealed design contribute to a high limiting speed of 31,000 rpm.
- Pre-Configured & Ready-to-Install: Supplied as a matched set of 3 bearings with a light preload (Class B), ensuring optimal performance and simplifying installation without the need for complex adjustments.
S7013 ACD/P4ATBTB Bearing Typical Application Areas
This precision bearing is engineered for high-performance machinery where accuracy and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-fine surface finishes.
- High-Frequency Machining Centers: For demanding metal cutting operations.
- High-Rigidity Rotary Tables: Indexing and positioning systems.
