S7001 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7001 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.019 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 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
3.969 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
691 lbf
Radial static load rating
286 lbf
Limiting speed
88 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:
$ 81.1
/ each
In Stock
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S7001 ACE/HCP4A Bearing Product Overview & Core Advantages
The S7001 ACE/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a 25° contact angle for optimal axial load capacity. Its ceramic balls and P4 (ABEC-7) tolerance class ensure superior running accuracy, low heat generation, and extended service life, making it ideal for high-speed and high-rigidity applications.
S7001 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7001 | Basic bearing series and size designation (12mm bore, 28mm OD, 8mm width). |
| ACE | Indicates a 25° contact angle and preload condition for enhanced rigidity. |
| HC | Refers to the hybrid ceramic construction (ceramic balls with steel rings). |
| P4A | Denotes ABEC-7 / P4 precision tolerance class for ultra-high running accuracy. |
S7001 ACE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic (Si3N4) balls significantly reduces friction, heat generation, and wear. This enables higher limiting speeds (88,000 rpm) and provides electrical insulation properties.
- Precision & Rigidity: Manufactured to P4 tolerance class and featuring a 25° contact angle with preload, this bearing delivers exceptional running accuracy and system stiffness, minimizing deflection under load.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, offering excellent strength and guidance for the ceramic balls.
- Sealed & Lubricated for Life: The sealed design with factory-applied lubrication protects against contamination and ensures consistent performance within the specified temperature range (-30°C to 110°C), making it a maintenance-free solution.
S7001 ACE/HCP4A Bearing Typical Application Areas
The S7001 ACE/HCP4A is engineered for high-performance applications, including:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Electric Motors
- Robotic Arm Joints and Drives
- Medical and Dental Equipment Spindles
- Aerospace Instrumentation
