7013 CE/HCPA9ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7013 CE/HCPA9ADGA
Basic Information
System of measurement
Metric
Weight
0.78 kg
Tolerance class
PA9A
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
15 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7470 lbf
Radial static load rating
6975 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 CE/HCPA9ADGA Bearing Product Overview & Core Advantages
The 7013 CE/HCPA9ADGA is a high-precision angular contact ball bearing engineered for demanding applications. Its core advantage lies in its ability to handle combined loads (radial and axial) simultaneously with exceptional accuracy and stability. Featuring a universal matchable (SU) design, two bearings can be paired in a back-to-back or face-to-face arrangement to optimize performance for specific load conditions. Manufactured to an ultra-PA9A tolerance class and utilizing ceramic balls, this bearing is designed for high-speed operation, superior rigidity, and long service life in precision machinery.
7013 CE/HCPA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series and size designation (65mm bore, 100mm OD). |
| CE | Indicates a 15° contact angle, optimized for high-speed performance and moderate axial load capacity. |
| HCPA9A | Specifies the tolerance class (PA9A) and preload. PA9A denotes extremely high dimensional and running accuracy. The preload is Extra Light (Class A), minimizing friction and heat generation at high speeds. |
| DGA | Signifies a phenolic (polyamide) cage and that the bearing is lubricated. The phenolic cage is lightweight, robust, and ideal for high-speed applications. |
7013 CE/HCPA9ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matchable (SU) pairing capability allow the bearing set to withstand significant combined radial and axial loads, providing a rigid and stable rotational axis.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage, ceramic balls (which reduce centrifugal forces and friction), and an extra light preload enables a very high limiting speed of 31,000 rpm.
- Ultra-Precision: Manufactured to the PA9A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring the highest levels of precision and surface finish.
- Extended Service Life: Ceramic balls offer superior wear resistance, lower thermal expansion, and electrical insulation properties compared to steel, contributing to longer bearing life and reliable performance.
7013 CE/HCPA9ADGA Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace & Defense Systems
- Semiconductor Manufacturing Equipment
