7013 CD/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7013 CD/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.72 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
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
15210 lbf
Radial static load rating
16875 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7013 CD/HCP4ADT Bearing Product Overview & Core Advantages
The 7013 CD/HCP4ADT is a precision angular contact ball bearing supplied as a matched duplex tandem (DT) set. Engineered for applications demanding exceptional accuracy and rigidity, this bearing is designed to primarily accommodate high axial loads in one direction. Its duplex tandem arrangement significantly increases axial load capacity and system stiffness compared to a single bearing. Manufactured to the exacting P4A tolerance class, it guarantees superior running accuracy, making it an ideal choice for high-speed and high-precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series and size designation (65mm bore, 100mm OD, 36mm width). |
| C | 15° contact angle, optimized for high axial load capacity. |
| D | Indicates the bearing is part of a matched duplex set. |
| HC | Hybrid Ceramic: Features ceramic balls and steel rings for enhanced performance. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DT | Duplex Tandem arrangement. Two bearings are mounted together to share the load and increase axial rigidity. |
7013 CD/HCP4ADT Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls reduces weight, minimizes friction, and allows for higher operating speeds. It also provides superior resistance to wear and operates effectively with less lubrication.
- Duplex Tandem (DT) Preload: The set is preloaded at the factory in a tandem configuration. This arrangement is specifically designed to handle very high unidirectional axial loads, providing maximum axial rigidity and minimizing axial deflection under load.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, offering excellent strength and guidance with minimal friction.
- High-Speed Capability: The hybrid design, precision tolerances (P4A), and phenolic cage collectively contribute to a high limiting speed of 31,000 rpm, making it suitable for demanding high-speed applications.
- Pre-Lubricated: The bearing is supplied with grease, ready for immediate installation and initial operation.
7013 CD/HCP4ADT Bearing Typical Application Areas
The 7013 CD/HCP4ADT is engineered for the most demanding precision applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision mechanisms.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
