7002 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7002 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.03 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
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1170 lbf
Radial static load rating
551 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 28.58
/ each
In Stock
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7002 CD/P4A Bearing Product Overview & Core Advantages
The 7002 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate primarily axial loads in one direction, it features a 15° contact angle for optimal performance. This bearing is supplied with a P4 (ABEC-7) tolerance class, ensuring minimal runout and superior dimensional stability. Its preload availability enhances system rigidity, making it ideal for demanding, high-speed operations where precise shaft positioning is critical.
7002 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series designation, indicating a 15mm bore, 32mm OD, and 9mm width. |
| C | Designates a 15° contact angle. |
| D | Indicates the bearing is part of a matched set for preload (though supplied as a single unit here). |
| P4 | Specifies the high-precision tolerance class (equivalent to ABEC-7). |
| A | Indicates that the bearing has a 30° contact angle (Note: This may seem contradictory to "C"; in some nomenclature, "A" can denote a specific internal design or contact angle variant. For this specific bearing, the primary contact angle is 15° as per specifications). |
7002 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing offers excellent dimensional stability and low vibration, crucial for high-speed, high-precision spindles.
- Optimized Load Capacity: The 15° contact angle is engineered to handle significant axial loads in one direction while supporting moderate radial loads, providing reliable performance under combined loading conditions.
- Superior High-Speed Performance: The lightweight phenolic cage and open design contribute to a high limiting speed of 85,000 rpm, reducing centrifugal forces and enabling smooth operation at extreme velocities.
- Pre-Lubricated & Ready for Use: The bearing is factory-lubricated, ensuring immediate operational readiness and initial protection, suitable for the specified temperature range of -30°C to 110°C.
7002 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines requiring precise bearing accuracy and rigidity.
- Precision Instruments: Measuring devices, optical scanners, and laboratory equipment where minimal runout and high rotational accuracy are paramount.
- High-Speed Motors & Drives: Servo motors, spindle drives, and other applications demanding high limiting speeds and stable performance under axial loads.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other critical components requiring reliable, high-precision angular contact bearings.
