7013 ACD/P4ATBTC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7013 ACD/P4ATBTC
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
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7013 ACD/P4ATBTC Bearing Product Overview & Core Advantages
The 7013 ACD/P4ATBTC is a metric precision angular contact ball bearing supplied as a triplex back-to-back (TBT) matched set. Engineered for applications demanding extremely high rigidity and superior running accuracy, this preloaded assembly is designed to handle significant combined loads (radial and axial) simultaneously. Its P4A tolerance class and moderate preload (Class C) make it an ideal choice for high-precision spindles and other critical machinery requiring exceptional stability and performance.
7013 ACD/P4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
The model number 7013 ACD/P4ATBTC is decoded as follows:
- 7013: Basic series number, indicating a medium series angular contact ball bearing with a 65mm bore and 100mm outside diameter.
- A: Signifies a 25° contact angle, optimized for carrying higher axial loads.
- C: Indicates a moderate preload (Class C) applied to the bearing set.
- D: Denotes a triplex back-to-back (TBT) matched set.
- P4A: Specifies a very high tolerance class for exceptional dimensional and running accuracy.
- TB: Indicates the specific matched arrangement is Back-to-Back.
- T: Specifies the cage material is Phenolic (synthetic resin), suitable for high-speed operation.
- BC: Further designation for the specific preload level (Class C) within the matched set.
7013 ACD/P4ATBTC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity & Stability: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise rotational accuracy.
- High Load Capacity: The 25° contact angle and triple-bearing configuration provide a high dynamic load rating (19,170 lbf radial), enabling reliable operation under demanding combined radial and axial loads.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground components contribute to lower centrifugal forces and smooth operation, supporting a high limiting speed of 31,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on bore, outside diameter, and width, guaranteeing consistent, high-precision performance in the most demanding applications.
- Pre-lubricated & Ready-to-Install: The bearings are supplied lubricated and as a pre-matched set, simplifying installation and ensuring immediate, optimal performance.
7013 ACD/P4ATBTC Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where maximum rigidity and precision are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation systems.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
