S7215 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7215 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
1.06 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
25 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
13162 lbf
Limiting speed
11 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:
$ 1005.32
/ each
In Stock
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S7215 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7215 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. This sealed bearing is designed to accommodate combined loads (radial and axial) simultaneously, with a 25° contact angle optimized for high axial load capacity. Its construction with a phenolic cage and ceramic balls enables superior high-speed performance and reduced rotational mass. As a P4 (ABEC-7) tolerance class component, it guarantees ultra-precise running accuracy, making it ideal for high-reliability and high-rigidity spindle systems.
S7215 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact Design, 25° contact angle | Optimized for high axial and combined load capacity. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Enables higher speeds, reduced friction, and longer service life. |
| P4A | P4 (ABEC-7) Tolerance Class with specific running accuracy enhancements. | Ensures ultra-precise rotation for critical applications. |
S7215 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and robust construction provide high rigidity, effectively supporting combined loads and moment loads in high-performance spindles.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, allowing for a high limiting speed of 11,000 rpm.
- Precision Engineering: Manufactured to P4 tolerance with tight bore and outside diameter tolerances, this bearing ensures minimal runout and vibration for exceptional rotational accuracy.
- Pre-Lubricated & Sealed: Comes lubricated and sealed from the factory, protecting against contamination and providing long-term, maintenance-free operation within the specified temperature range.
S7215 ACD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are critical. Key applications include:
- Machine Tool Spindles: High-speed CNC machining centers, grinding spindles.
- Precision Instrumentation: High-speed measuring and testing equipment.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Advanced Robotic Systems: High-precision robotic arm joints and drives.
