7002 CD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7002 CD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.06 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
1872 lbf
Radial static load rating
1102 lbf
Limiting speed
100 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 110.57
/ each
In Stock
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7002 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7002 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a pre-matched duplex set, it delivers superior rigidity and can accommodate combined radial and axial loads. Manufactured to the stringent P4A tolerance class and featuring a light preload (Class B), this bearing is engineered for high-precision spindles and other critical machinery where reliability and precision are paramount.
7002 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series and size designation (15mm bore, 32mm OD). |
| C | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial loads. |
| D | Indicates the bearing is part of a universal matchable (SU) duplex set. |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7 standards for minimal runout and vibration. |
| DGB | Signifies a back-to-back (DB) mounting arrangement of the pre-matched set, providing high moment rigidity. |
7002 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex set configuration (DGB) creates a highly rigid bearing system capable of supporting significant combined loads and moment loads, making it ideal for precision spindles.
- Superior High-Speed Performance: The 15° contact angle and lightweight phenolic cage minimize centrifugal forces and friction, enabling stable operation at the high limiting speed of 100,000 rpm.
- Exceptional Precision: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width, ensuring minimal runout for superior application accuracy.
- Optimized for Matched Performance: As Universal Matchable (SU) bearings, they can be universally paired in any combination to achieve the desired preload and rigidity without selective matching, simplifying inventory and assembly.
- Durable Construction: Components made from chrome steel offer high hardness and wear resistance, contributing to a long service life under demanding conditions.
7002 CD/P4ADGB Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Systems: CNC rotary tables, indexing heads, and robotic arm joints.
- High-Frequency Motors: Spindles for PCB drilling and small precision motors.
- Medical and Laboratory Equipment: Centrifuges and high-speed scanners.
- Aerospace Instrumentation: Gyroscopes and navigation system components.
