7202 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7202 ACDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.037 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
35 mm
Outside diameter tolerance
-0.004mm to 0
Width
11 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1609 lbf
Radial static load rating
720 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
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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In Stock
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7202 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7202 ACDGA/HCP4A is a single-row angular contact ball bearing engineered for ultra-high precision and exceptional performance in demanding applications. Positioned in the P4A super-precision tolerance class, it delivers extreme dimensional accuracy and running quietness. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces simultaneously. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life, making it an ideal choice for high-speed spindles and precision machinery requiring maximum reliability.
7202 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7202 | Basic bearing series, indicating a 15mm bore, 35mm OD, and 11mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Specific internal design and preload designation: Extra light preload (Class A). |
| HCP4A | Indicates the bearing is part of a Universal Matchable (SU) set of 4 bearings, manufactured to P4A super-precision tolerance standards. |
7202 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage enables exceptionally high limiting speeds of up to 95,000 rpm, minimizing heat generation and power loss.
- Precision & Rigidity: Manufactured to P4A tolerance class with tight dimensional controls on bore, OD, and width. The 25° contact angle and extra light preload provide high system rigidity and precise rotational accuracy, critical for minimizing runout.
- Superior Load Capacity: The angular contact design efficiently handles combined radial and axial loads. With a dynamic load rating of 1609 lbf, it offers reliable performance under strenuous operating conditions.
- Universal Matching Design (SU): This bearing is universally matchable, allowing any combination of bearings from a set of 4 to be mounted together in various configurations (back-to-back, face-to-face, or tandem) to achieve the desired preload and stiffness without selective assembly.
7202 ACDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles for CNC milling, grinding, and drilling
- Precision Robotic Drives and Servo Motors
- High-Frequency Dental and Medical Handpieces
- Aerospace Gyroscopes and Instrumentation
- Semiconductor Manufacturing Equipment
