S7013 ACD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7013 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.87 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
36 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
14332 lbf
Radial static load rating
15975 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
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
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S7013 ACD/P4ADBB Bearing Product Overview & Core Advantages
The S7013 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stiffness and the ability to withstand combined radial and axial loads from both directions. Manufactured to P4A tolerance class and preloaded, it is engineered for high-speed operation and long-term reliability in demanding industrial environments.
S7013 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| P4A | Indicates a high-precision tolerance class exceeding ABEC 7 standards, ensuring minimal runout and vibration. |
| DB | Signifies a Duplex Back-to-Back matched set. This arrangement increases moment rigidity and provides excellent axial stability. |
| Sealed | The bearing is sealed and pre-lubricated with grease, offering protection from contaminants and enabling maintenance-free operation. |
S7013 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) configuration creates a rigid bearing system capable of handling significant combined loads and moment loads, making it ideal for applications requiring high positional accuracy.
- Precision Performance: Manufactured to P4A tolerance class with a light preload (Class B), this bearing ensures smooth, quiet operation with minimal rotational error, essential for high-speed spindles.
- Optimized High-Speed Operation: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and allowing for a limiting speed of 31,000 rpm. The 25° contact angle provides a balanced performance for both radial and axial loads at high speeds.
- Durability & Reliability: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life. The integral seals retain the factory-applied grease, protecting against contamination and ensuring consistent lubrication across its operating temperature range of -30°C to 110°C.
S7013 ACD/P4ADBB Bearing Typical Application Areas
The S7013 ACD/P4ADBB is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Industrial Pumps & Compressors: For handling axial and radial loads with minimal vibration.
- High-Frequency Motors and Spindles: Where superior rotational accuracy and rigidity are required.
- Robotics and Automation Equipment: Particularly in high-accuracy rotary joints and arm assemblies.
