7002 CE/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7002 CE/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.056 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
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1609 lbf
Radial static load rating
855 lbf
Limiting speed
127 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
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7002 CE/P4ADBA Bearing Product Overview & Core Advantages
The 7002 CE/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set is preloaded to Extra Light (Class A) specifications, ensuring minimal axial and radial play for superior system stability. Its primary advantage lies in its ability to handle combined loads—significant radial loads alongside thrust loads in both directions—making it an ideal choice for high-precision, high-rigidity spindles and positioning systems.
7002 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7002 CE/P4ADBA is decoded as follows:
- 7002: Basic series designation, indicating a 15mm bore and 32mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial load capacity.
- E: Indicates optimized internal geometry and P4A tolerance class for enhanced running accuracy.
- P4A: The tolerance class, specifying extremely tight dimensional and running accuracy tolerances superior to ABEC 7.
- DB: The matched arrangement code for Duplex Back-to-Back mounting, which provides high moment rigidity.
- A: Specifies the preload level, in this case, Extra Light (Class A).
7002 CE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement and Class A preload create a highly rigid bearing system that effectively resists moment loads and minimizes deflection under operating conditions.
- Precision Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing delivers exceptional running accuracy, low vibration, and low noise, which is critical for high-speed applications.
- Optimized for High Speeds: The 15° contact angle and lightweight phenolic cage are engineered to reduce centrifugal forces and friction, enabling a high limiting speed of 127,000 rpm.
- Superior Load Capacity: The design efficiently supports combined radial and axial loads, with a dynamic load rating of 1609 lbf and a static load rating of 855 lbf.
- Pre-Lubricated: Comes lubricated from the factory, ready for immediate installation and initial operation within the specified temperature range.
7002 CE/P4ADBA Bearing Typical Application Areas
This bearing is specifically engineered for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling spindles and engraving machines.
- High-Frequency Motors: Spindles for routers and small precision motors.
- Medical Equipment: High-speed handpieces and dental drills.
- Test & Measurement Equipment: Precision rotary tables and encoders.
