7202 CD/HCP4ADBB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7202 CD/HCP4ADBB
Basic Information
System of measurement
Metric
Weight
0.074 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
22 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2722 lbf
Radial static load rating
1474 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 111.17
/ each
In Stock
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7202 CD/HCP4ADBB Bearing Product Overview & Core Advantages
The 7202 CD/HCP4ADBB is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) pair is preloaded to Light / Class B specifications, ensuring minimal axial and radial play for superior system stability. Its construction with a 15° contact angle enables it to efficiently handle combined loads (radial and axial) simultaneously. Featuring a P4A super-precision tolerance class and ceramic balls, this bearing is engineered for high-speed operation and extended service life in demanding environments.
7202 CD/HCP4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7202 CD/HCP4ADBB is decoded as follows:
- 7202: Basic series designation for a 15mm bore, 35mm OD angular contact ball bearing.
- C: Denotes a 15° contact angle.
- D: Indicates the bearing is part of a Duplex (paired) set.
- HC: Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings).
- P4A: Specifies a super-precision tolerance class, exceeding ABEC 7 standards.
- DB: Defines the Duplex Back-to-Back mounting arrangement.
- B: Indicates a Light preload (Class B).
7202 CD/HCP4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The back-to-back duplex arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, making it ideal for precision spindles.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density, hard ceramic (Si3N4) balls reduces centrifugal forces, lowers operating temperatures, and allows for a limiting speed of 95,000 rpm.
- Extended Service Life & Reliability: Hybrid ceramic construction offers excellent wear resistance, reduced electrical arcing, and the ability to operate with minimal lubrication. The P4A precision tolerance ensures smooth, quiet, and vibration-free operation.
- Optimized Load Capacity: The 15° contact angle is optimized to handle significant combined radial and axial loads, with a dynamic load rating of 2722 lbf and a static load rating of 1474 lbf.
7202 CD/HCP4ADBB Bearing Typical Application Areas
This high-performance bearing is specifically designed for advanced applications including:
- High-Frequency Machine Tool Spindles (e.g., CNC milling, grinding, and routing)
- Precision Robotics and automated guidance systems
- High-Speed Motors and Encoder Systems
- Dental and Medical Handpieces
- Aerospace Instrumentation and auxiliary systems
