7002 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7002 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.027 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.006mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1112 lbf
Radial static load rating
522 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 74.8
/ each
In Stock
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7002 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7002 ACD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its key advantage lies in its ability to accommodate significant axial loads in one direction, combined with radial loads, making it ideal for high-rigidity applications. Manufactured to a P4 (ABEC-7) tolerance class and featuring a ceramic ball and phenolic cage construction, this bearing delivers exceptional dimensional stability, reduced friction, and superior performance in demanding environments.
7002 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Standard series designation, defining the basic dimensions: 15mm bore, 32mm OD, 9mm width. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Indicates a high internal design, typically related to enhanced load capacity. |
| HCP4A | Denotes a P4 (ABEC-7) tolerance class for ultra-high precision and running accuracy. The "A" suffix often indicates a specific internal design or preload level. |
7002 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic cage and ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 95,000 rpm.
- Precision & Rigidity: Manufactured to P4 tolerance with a 25° contact angle, this bearing provides high running accuracy and system rigidity, essential for precise positioning.
- Reduced Friction & Heat Generation: Ceramic balls offer lower density and superior smoothness compared to steel, resulting in less friction, lower operating temperatures, and extended service life.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance and increases stiffness for applications requiring minimal deflection.
7002 ACD/HCP4A Bearing Typical Application Areas
This high-precision, high-speed angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Spindles for PCB drilling and routing
- Precision Grinding Spindles
- High-Speed Motors and Robotic Drives
- Medical and Dental Handpieces
- Aerospace Actuators and Instrumentation
