7013 ACE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7013 ACE/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.78 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
36 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7020 lbf
Radial static load rating
6525 lbf
Limiting speed
24 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7013 ACE/HCP4ADBA Bearing Product Overview & Core Advantages
The 7013 ACE/HCP4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set features an Extra Light (Class A) preload, ensuring high system rigidity and minimal runout. Its construction with ceramic balls and a phenolic cage enables superior high-speed capabilities and reduced rotational mass. The bearing is optimized to handle combined loads, particularly thrust loads in both directions, making it ideal for high-precision, high-reliability spindles and machinery.
7013 ACE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7013 ACE/HCP4ADBA provides detailed technical specifications:
- 7013: Basic bearing series, indicating a 65mm bore, 100mm outside diameter, and 36mm width.
- A: Denotes a 25° contact angle, optimized for high axial load capacity.
- C: Indicates the use of Ceramic (Si3N4) balls for higher speed and longer service life.
- E: Specifies an Extra Light preload (Class A) for maximum precision and minimal friction.
- HC: Refers to a Phenolic Resin Cage, suitable for high-speed operation.
- P4A: Identifies the tolerance class P4A, offering extremely tight dimensional and running accuracy.
- DB: Designates the bearings are supplied as a Duplex Back-to-Back matched set of 2 bearings.
- A: Confirms the universal matching is standard (not universal).
7013 ACE/HCP4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The duplex back-to-back (DB) arrangement and Class A preload create a highly rigid bearing system that minimizes deflection under load, ensuring exceptional running accuracy and stability for precision spindle applications.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and allows for a higher limiting speed of 24,000 rpm.
- Enhanced Load Capacity: The 25° contact angle is engineered to efficiently support significant combined radial and axial loads, providing reliable performance in demanding operational conditions.
- Optimized for Precision Applications: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, guaranteeing consistent, high-precision performance.
7013 ACE/HCP4ADBA Bearing Typical Application Areas
The 7013 ACE/HCP4ADBA is ideally suited for high-performance machinery where precision, speed, and rigidity are critical. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-fine surface finishes.
- High-Frequency Motors and Spindles: Where minimal vibration and high rotational accuracy are paramount.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
