S7002 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7002 CE/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.058 kg
Tolerance class
P4A
Seal type
Sealed
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
95 X 1000 rpm
Lubrication
Grease
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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S7002 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7002 CE/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This duplex back-to-back (DB) matched set provides superior stiffness and can accommodate combined loads (radial and axial loads from both directions) simultaneously. Manufactured to the stringent P4A tolerance class and featuring a phenolic cage, it is engineered for high-speed operation and reliable performance in demanding industrial environments.
Model Code Breakdown
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| S7002 | Bearing Series & Size | Denotes the specific bearing series with a 15mm bore, 32mm OD, and 18mm width. |
| CE | Contact Angle & Design | Indicates a 15° contact angle, optimized for high-speed performance and axial load capacity. |
| P4A | Tolerance Class | Signifies a high-precision bearing with extremely tight dimensional and running accuracy tolerances. |
| DB | Matched Arrangement | "Duplex Back-to-Back" – Two bearings are universally matched and preloaded in a back-to-back configuration to maximize system rigidity and moment load capacity. |
S7002 CE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The duplex back-to-back (DB) arrangement creates a wide effective spread, significantly increasing the bearing system's rigidity and its ability to withstand moment loads, making it ideal for precision spindles.
- Superior Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Optimized High-Speed Performance: The lightweight phenolic cage and 15° contact angle are designed to reduce centrifugal forces and friction, enabling a high limiting speed of 95,000 rpm.
- Robust Load Capacity: The angular contact design efficiently handles combined radial and axial loads. The dynamic and static load ratings ensure long service life under demanding operating conditions.
- Pre-lubricated & Sealed: The bearing is pre-lubricated with grease and sealed, protecting against contamination and providing maintenance-free operation within the specified temperature range.
S7002 CE/P4ADBA Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for advanced machinery and equipment, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, dental handpieces, and other small, high-speed spindles.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Robotics: Joints and actuators requiring high precision and rigidity.
- Medical and Laboratory Equipment: Centrifuges and other precision instruments.
