7013 CD/P4ATBTD
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7013 CD/P4ATBTD
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
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
20340 lbf
Radial static load rating
25200 lbf
Limiting speed
24 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
Heavy / Class D
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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7013 CD/P4ATBTD Bearing Product Overview & Core Advantages
The 7013 CD/P4ATBTD is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set delivers superior performance under combined loads, handling significant radial and axial forces simultaneously. Manufactured to P4A tolerance class and featuring a heavy preload (Class D), it ensures minimal deflection and outstanding operational stability in high-precision machinery. Its optimized design is ideal for applications where high rigidity and precise rotational accuracy are paramount.
7013 CD/P4ATBTD Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series, defining the standard dimensions: 65 mm bore, 100 mm OD, 54 mm width. |
| CD | Indicates a duplex bearing in a back-to-back arrangement. In this context, it is part of the specification for the triplex set (TBT). |
| P4A | Specifies the tolerance class, denoting very high precision levels for both dimensional and running accuracy. |
| TBT | Denotes the Triplex Back-to-Back matched arrangement of three bearings. |
| Heavy Preload (Class D) | A significant internal preload applied to maximize system rigidity and minimize axial/radial play. |
7013 CD/P4ATBTD Bearing Structural Features & Performance Benefits
- Triplex Back-to-Back Design: The arrangement of three bearings provides an extremely high rigidity support system, effectively resisting complex moment loads and preventing shaft misalignment.
- Superior Load Capacity: With a 15° contact angle and robust construction, this bearing set is engineered to handle substantial combined radial and axial loads simultaneously, ensuring reliable performance in strenuous conditions.
- Precision & Stability: The P4A tolerance class and heavy preload guarantee exceptional running accuracy, low noise, and minimal thermal growth, which is critical for high-speed applications.
- Optimized Components: The phenolic cage offers reduced weight and excellent performance at high speeds, while the chrome steel rings and balls ensure high durability and long service life.
- Pre-lubricated: Comes lubricated from the factory, ready for immediate installation and initial operation within the specified temperature range.
7013 CD/P4ATBTD Bearing Typical Application Areas
This precision bearing set is ideally suited for high-performance machinery where maximum rigidity and accuracy are non-negotiable. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in robotics and high-torque transmission systems.
- Industrial Pumps and Compressors: For handling axial and radial loads in demanding fluid-handling equipment.
- Aerospace Actuation Systems: Where reliability and precision under load are critical.
