S7000 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7000 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.017 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
26 mm
Outside diameter tolerance
-0.005mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
9
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
893 lbf
Radial static load rating
360 lbf
Limiting speed
80 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:
$ 78.25
/ each
In Stock
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S7000 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7000 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This sealed, single bearing features a P4 (ABEC-7) tolerance class and is preloaded, delivering superior running accuracy and system rigidity. Its ceramic ball construction and optimized 25° contact angle enable outstanding high-speed capabilities and extended service life, making it an ideal solution for high-reliability, high-RPM machinery.
S7000 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACD | Angular Contact Design (25° contact angle) | Optimized for handling combined radial and axial loads. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduced weight, lower friction, and superior performance at high speeds. |
| P4 | Precision Tolerance Class (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for precision applications. |
| Sealed | Integrated Seals | Protects against contamination and retains lubricant, enhancing reliability and enabling maintenance-free operation. |
S7000 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of silicon nitride (Si3N4) ceramic balls with a chrome steel ring significantly reduces centrifugal forces, lowers operating temperature, and increases the limiting speed (80,000 rpm). This combination also provides excellent electrical resistance and longer life under poor lubrication conditions.
- Precision & Preload: Manufactured to P4/ABEC-7 tolerance standards and supplied with preload, this bearing ensures minimal runout and high system stiffness, which is critical for applications requiring precise rotational accuracy.
- Optimized Contact Angle & Cage: The 25° contact angle is ideal for sustaining significant axial loads in one direction. The phenolic resin cage is lightweight and robust, contributing to smooth operation at high speeds and effective lubrication management.
- Sealed & Lubricated for Life: The integral seals effectively shield the bearing from contaminants like dust and moisture while retaining the factory-applied high-performance lubricant. This design offers a maintenance-free solution with consistent performance across its operating temperature range of -30°C to 110°C.
S7000 ACD/HCP4A Bearing Typical Application Areas
The S7000 ACD/HCP4A is designed for high-performance machinery where speed, precision, and reliability are paramount. Key application areas include:
- High-Speed Spindles for CNC machining centers and precision grinding machines
- High-Frequency Motors and servo drives
- Turbochargers and auxiliary units in aerospace and automotive sectors
- Precision Instrumentation and medical devices
- High-RPM Pumps and compressors
