S7216 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7216 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
1.28 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.009mm to 0
Width
26 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
18428 lbf
Radial static load rating
16200 lbf
Limiting speed
10 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:
$ 1088.33
/ each
In Stock
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S7216 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7216 ACD/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional speed and rigidity. Engineered to accommodate combined loads (radial and axial loads simultaneously), this single-row bearing features a 25° contact angle for optimal axial load capacity. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and reduced rotational mass. Pre-loaded and pre-lubricated, it offers immediate, reliable operation in high-accuracy systems.
S7216 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACD | 25° Contact Angle, High Precision | Optimized for high axial loads and precision applications. |
| HCP4A | Hybrid Ceramic (Balls), P4 (ABEC-7) Tolerance, Pre-loaded | Enables high-speed operation, reduced friction, and exceptional running accuracy with immediate rigidity from preload. |
S7216 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls significantly reduces weight and inertia, minimizes heat generation, and provides superior performance at high rotational speeds. This also enhances durability and resistance to wear.
- Phenolic Resin Cage: This lightweight, robust cage material is ideal for high-speed applications, offering excellent dimensional stability and low friction operation.
- P4 (ABEC-7) Super-Precision: Manufactured to extremely tight dimensional tolerances and running accuracy, ensuring smooth, quiet, and vibration-free operation critical for precision machinery.
- Pre-lubricated & Sealed: Comes pre-lubricated for immediate use and features integral seals to protect against contamination, ensuring long service life and reliability.
- High Load Capacity: The 25° contact angle and robust design provide a high dynamic and static load rating, making it suitable for applications with significant radial and axial forces.
S7216 ACD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where speed, precision, and rigidity are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling and grinding)
- Precision Grinding Spindles
- High-Frequency Motors
- Turbochargers
- Advanced Robotics and Automation
- Aerospace Actuation Systems
