7013 ACB/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7013 ACB/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.89 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
7.144 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5355 lbf
Radial static load rating
5512 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7013 ACB/HCP4ADGA Bearing Product Overview & Core Advantages
The 7013 ACB/HCP4ADGA is a precision angular contact ball bearing designed for high-performance applications. This universally matchable (SU) bearing is part of a matched set of 2, enabling it to handle combined radial and axial loads efficiently. Manufactured to P4A tolerance class, it offers exceptional dimensional accuracy and rotational precision. The combination of a ceramic ball material and phenolic cage contributes to its status as a high-speed bearing, capable of operating at limiting speeds up to 31,000 rpm. Its compact design and high rigidity make it ideal for demanding, high-reliability machinery.
7013 ACB/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Standard bearing series number, defining the basic bearing dimensions (65mm bore, 100mm OD, 36mm width). |
| ACB | Angular Contact Bearing with a 25° contact angle. |
| HCP4A | Indicates a P4A tolerance class for ultra-high precision and a phenolic (resin) cage. |
| DGA | Universal Matchable (SU) designation, meaning two bearings are pre-matched for optimal performance in a duplex set. |
7013 ACB/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matching (SU) of two bearings create a highly rigid assembly capable of supporting significant combined loads.
- Superior High-Speed Performance: The lightweight phenolic cage and low-density ceramic balls reduce centrifugal forces, enabling stable operation at the high limiting speed of 31,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore, outside diameter, and width, ensuring minimal runout and vibration.
- Optimized for Matched Sets: Being part of a universally matchable pair (DGA suffix) ensures pre-determined axial play or preload when mounted, simplifying installation and guaranteeing performance.
7013 ACB/HCP4ADGA Bearing Typical Application Areas
This bearing is engineered for high-precision, high-speed rotational systems. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Aerospace & Defense Actuators
- Medical & Laboratory Centrifuges
