S7019 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7019 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
1.23 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
145 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
10.319 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6660 lbf
Radial static load rating
5850 lbf
Limiting speed
14 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:
$ 1247.48
/ each
In Stock
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S7019 CB/HCP4A Bearing Product Overview & Core Advantages
The S7019 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and superior rotational precision. A key feature is its preload availability, which eliminates internal clearance to provide high system rigidity and precise shaft positioning. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capability, reduced weight, and excellent performance under challenging conditions. It is pre-lubricated and sealed for long-term, maintenance-free operation.
S7019 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CB | Specific internal clearance and preload designation. | Optimized for high rigidity and precise rotational accuracy. |
| HC | Hybrid Ceramic (Silicon Nitride balls). | Enables higher speeds, reduced friction, and longer service life, especially in lubricant-starved conditions. |
| P4 | Dimensional and running accuracy per ISO P4 / ABEC-7. | Guarantees ultra-precision bearing performance for applications with stringent accuracy requirements. |
S7019 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and available preload (CB designation) work in concert to provide high axial and radial stiffness, ensuring minimal deflection under load and superior positional accuracy.
- Enhanced Speed Performance: The hybrid ceramic balls offer lower density and superior smoothness compared to steel, while the lightweight phenolic cage is optimized for high-speed operation, collectively contributing to the high limiting speed of 14,000 rpm.
- Superior Load Capacity: With a dynamic load rating of 6660 lbf and a static load rating of 5850 lbf, this bearing is designed to handle significant combined loads (simultaneous radial and axial forces) reliably.
- Maintenance-Free Operation: The sealed design retains the factory-applied lubricant and effectively excludes contaminants, ensuring long service life and reliability without the need for re-lubrication.
S7019 CB/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key sectors include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and high-accuracy positioning systems.
- High-Frequency Motors and Spindles: Applications requiring low inertia and high rotational accuracy.
- Aerospace and Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
