S7207 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7207 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.25 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
17 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
13
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6908 lbf
Radial static load rating
4680 lbf
Limiting speed
20 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:
$ 242.9
/ each
In Stock
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S7207 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7207 ACD/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered as a single matched arrangement with ceramic balls and P4 (ABEC-7) tolerance class, this bearing delivers superior performance in high-speed and high-rigidity scenarios. Its 25° contact angle is optimized to handle significant combined loads, including radial and axial loads, making it an ideal solution for compact, high-performance machinery where space and precision are critical.
S7207 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for combined radial and axial loads. |
| HC | Hybrid Ceramic construction, featuring ceramic balls for reduced weight, lower friction, and enhanced high-speed capability. |
| P4A | Precision class P4 (ABEC-7) with specific internal geometry and tolerance enhancements for superior running accuracy. |
S7207 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle and preload availability provides high axial and radial stiffness, enabling stable operation under combined loads.
- High-Speed Performance: The hybrid ceramic construction (ceramic balls with steel rings) reduces centrifugal forces and friction, while the phenolic cage ensures minimal weight and excellent guidance at limiting speeds up to 20,000 rpm.
- Precision & Longevity: Manufactured to P4 (ABEC-7) tolerance class, this bearing offers exceptional running accuracy. The sealed design with factory-applied lubrication protects against contamination, ensuring consistent performance and extended service life within a temperature range of -30°C to 110°C.
- Optimized Design: With a compact bearing size (35mm bore, 72mm OD, 17mm width) and a low weight of 0.25 kg, it is engineered for applications where space and weight savings are crucial.
S7207 ACD/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding & Milling Applications
- High-Performance Electric Motors
- Aerospace Actuation Systems
- Medical & Dental Equipment Spindles
- Advanced Robotics & Automation
