S7022 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7022 ACB/HCP4A
Basic Information
System of measurement
Metric
Weight
2.09 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.01mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
31
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7898 lbf
Radial static load rating
7650 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:
$ 1676.74
/ each
In Stock
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S7022 ACB/HCP4A Bearing Product Overview & Core Advantages
The S7022 ACB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This sealed bearing features a single, preloaded design with a 25° contact angle, enabling it to handle combined loads (radial and axial) simultaneously and efficiently. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees superior running accuracy. The use of ceramic balls and a phenolic cage contributes to its high-speed capability, low heat generation, and extended service life, making it ideal for high-reliability and high-performance systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7022 | Basic bearing designation, indicating a 110 mm bore, 170 mm OD, and 28 mm width. |
| AC | Angular Contact design, optimized for combined loads. |
| B | Denotes a 40° contact angle (Note: This is a standard designation; the provided spec indicates a 25° angle. The "B" suffix typically signifies a higher contact angle. Please verify the specific bearing configuration). |
| HC | Hybrid Ceramic, indicating the use of ceramic balls with steel rings. |
| P4A | Specifies the P4 tolerance class (ABEC-7), ensuring ultra-precision. |
S7022 ACB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Preload: The bearing is supplied with a preload, which eliminates internal clearance. This results in high rigidity, precise shaft positioning, and reduced vibration and noise under operational loads.
- Superior Load Capacity: The 25° contact angle and robust construction provide excellent capacity for combined radial and axial loads.
- Enhanced High-Speed Performance: The combination of ceramic balls (lighter and harder than steel) and a phenolic resin cage reduces centrifugal forces, friction, and heat generation. This allows for a high limiting speed of 11,000 rpm.
- Long-Term Reliability: The integral seals protect against contamination, and the factory-applied lubrication is suitable for the specified temperature range, offering a maintenance-free, long service life.
- Precision Engineering: Manufactured to P4 tolerance with tight dimensional controls on the bearing bore, outside diameter, and width, ensuring consistent, high-performance integration into precision assemblies.
S7022 ACB/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where speed, precision, and reliability are critical. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and minimal runout are required.
- High-Frequency Motors and Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Aerospace and Defense Systems: Including gyroscopes, navigation systems, and other critical rotating assemblies.
- Medical Equipment: Such as high-speed dental handpieces and laboratory centrifuges.
