S7002 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7002 CEGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.026 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
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°C to 110 °C
Radial dynamic load rating
994 lbf
Radial static load rating
434 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 62.22
/ each
In Stock
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S7002 CEGA/HCP4A Bearing Product Overview & Core Advantages
The S7002 CEGA/HCP4A is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional speed and rigidity. Engineered to accommodate combined loads (radial and axial loads in one direction), its compact design is ideal for high-speed spindles and precision machinery. Key advantages include its ceramic ball construction for reduced centrifugal force and thermal expansion, a P4A super-precision tolerance for minimal runout, and universal matchability (SU designation), allowing bearings to be paired in any combination for simplified mounting and optimal preload control.
S7002 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7002 | Standard bearing series with 15mm bore, 32mm OD. |
| CE | Hybrid Ceramic Bearing (Ceramic balls, steel rings). |
| GA | Light preload (Class A). |
| HC | High-Capacity phenolic resin cage. |
| P4A | Super precision tolerance class, equivalent to ABEC 7. |
S7002 CEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls significantly reduces weight and centrifugal forces, enabling higher limiting speeds (95,000 rpm) and reduced operating temperatures compared to all-steel bearings.
- High Rigidity & Load Capacity: The 15-degree contact angle and robust construction provide excellent resistance to combined loads, making it suitable for applications with significant axial thrust.
- Optimized High-Speed Performance: The lightweight phenolic cage (HC) ensures stability and low friction at ultra-high speeds, while the pre-applied grease lubrication is formulated for the specified temperature range (-30°C to 110°C).
- Precision Engineering: The P4A tolerance class guarantees extremely tight dimensional and running accuracy, which is critical for applications requiring high rotational precision and system rigidity.
S7002 CEGA/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where speed, precision, and rigidity are paramount. Key sectors include:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Semiconductor Manufacturing Equipment: Wafer handling robots and precision stages.
- High-Speed Motors and Turbines: Where extreme rotational velocities are required.
