7013 ACD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7013 ACD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
1.29 kg
Tolerance class
P4A
Seal type
Open
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
Lubricated
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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7013 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 7013 ACD/P4ATBTB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This bearing features a triplex back-to-back (TBT) matched arrangement with a light preload (Class B), enabling it to handle significant combined loads—simultaneous radial and axial forces. Manufactured to the stringent P4A tolerance class, it delivers superior running accuracy and is ideally suited for high-speed, high-precision machinery where uncompromising performance and high rigidity are critical.
7013 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class exceeding ABEC-7 standards, ensuring minimal runout and vibration. |
| TBT | Signifies a Triplex Back-to-Back matched set of three bearings, providing maximum rigidity and moment load capacity. |
7013 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The triplex back-to-back arrangement creates a highly rigid bearing system capable of withstanding heavy combined loads and moment loads, making it exceptionally stable under complex operating conditions.
- Precision Performance: The P4A tolerance class guarantees ultra-precise dimensions and running accuracy, which is essential for applications requiring minimal vibration and high positional accuracy.
- Optimized High-Speed Operation: The phenolic cage is lightweight and robust, contributing to lower centrifugal forces and enabling smooth operation at the high limiting speed of 31,000 rpm. The 25° contact angle provides an excellent balance between radial and axial load capacity for high-speed applications.
- Superior Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers high fatigue life and durability under demanding loads.
7013 ACD/P4ATBTB Bearing Typical Application Areas
This precision angular contact ball bearing is engineered for the most demanding applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers where accuracy and rigidity are paramount.
- Precision Gearboxes: In applications requiring high torque transmission and minimal deflection.
- High-Frequency Spindles: Used in PCB drilling and other high-RPM machining processes.
- Robotic Arm Joints: Providing precise and rigid rotational movement in advanced automation.
