S7002 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7002 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.027 kg
Tolerance class
P4 (ABEC-7)
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
-0.006mm 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
67 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 90.76
/ each
In Stock
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S7002 CD/HCP4A Bearing Product Overview & Core Advantages
The S7002 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and reliability. This single-row bearing features a 15° contact angle and is supplied with a factory-applied preload, ensuring high system rigidity and minimal axial/radial runout from the moment of installation. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capability, reduced weight, and excellent performance under challenging conditions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7002 | Basic bearing designation, indicating a metric, 15mm bore, 32mm OD, 9mm width angular contact bearing. |
| C | Specifies a 15° contact angle, optimized for high-speed applications requiring high rigidity. |
| D | Indicates the bearing is supplied with a preload for enhanced stiffness and precise rotational performance. |
| HC | Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| P4A | Denotes a P4 tolerance class (equivalent to ABEC-7), representing very high precision. |
S7002 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and factory-applied preload work in tandem to provide high axial and radial stiffness, minimizing deflection under load and ensuring precise shaft positioning. The P4 tolerance guarantees exceptional running accuracy.
- Superior High-Speed Performance: The hybrid ceramic design with silicon nitride balls significantly reduces centrifugal forces, lowers operating temperatures, and allows for a higher limiting speed of 67,000 rpm. The lightweight phenolic cage further enhances high-speed stability.
- Extended Service Life and Reliability: Ceramic balls are harder, smoother, and electrically resistant, leading to reduced wear, longer bearing life, and protection against electrical erosion. The bearing is pre-lubricated for immediate operation.
- Optimized Load Capacity: Designed to support combined loads, it efficiently handles substantial radial loads and simultaneous axial loads in one direction, with a dynamic load rating of 1170 lbf.
S7002 CD/HCP4A Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for:
- High-Speed Spindles in CNC machining centers, routers, and grinding machines
- Precision Instrumentation and medical devices
- High-Performance Electric Motors and servo drives
- Aerospace and Defense systems requiring high reliability
- Semiconductor Manufacturing Equipment
