S7019 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7019 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
1.14 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
12.7 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9945 lbf
Radial static load rating
8550 lbf
Limiting speed
15 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:
$ 1247.24
/ each
In Stock
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S7019 CE/HCP4A Bearing Product Overview & Core Advantages
The S7019 CE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. Its single-row design, combined with a 15° contact angle, is optimized to handle significant combined loads—simultaneously supporting substantial radial loads and thrust loads in one direction. A key performance feature is its P4 (ABEC-7) tolerance class, ensuring ultra-precise running accuracy and minimal rotational vibration. Pre-loaded and pre-lubricated from the factory, this bearing is ready for installation, offering high reliability and simplified assembly in high-performance systems.
S7019 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Performance Implication |
|---|---|---|
| S7019 | Standard bearing series designation with 95mm bore. | Defines the core bearing dimensions. |
| CE | Designates a 15° contact angle and internal design optimized for high-speed operation. | Enhances high-speed performance and thrust capacity. |
| HC | Indicates the use of Hybrid Ceramic components (ceramic balls). | Reduces weight and friction, increases limiting speed, and provides superior operation in marginal lubrication. |
| P4A | Specifies a P4 (ABEC-7) tolerance class and specific internal running accuracy. | Guarantees the high running accuracy and low vibration essential for precision bearing applications. |
S7019 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of steel rings and ceramic balls significantly reduces centrifugal forces and operating temperature, directly contributing to a higher limiting speed of 15,000 rpm. This also provides improved resistance to electrical erosion and operation in a wider temperature range.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability at high speeds, guiding the ceramic balls effectively for smooth and reliable operation.
- Precision Engineering (P4 Class): Manufactured to P4 tolerance standards, this bearing offers minimal runout and precise rotational characteristics, which is critical for applications requiring high positional accuracy.
- Sealed & Pre-lubricated: The sealed design retains lubrication and excludes contaminants, ensuring long service life and making it a maintenance-free solution for many applications.
S7019 CE/HCP4A Bearing Typical Application Areas
This high-performance angular contact ball bearing is ideally suited for:
- High-Speed Machine Tool Spindles (milling, grinding, and drilling)
- Precision Robotic Drives and Actuators
- High-Frequency Motors and Spindles
- Aerospace and Defense Instrumentation
- Medical and Dental Equipment (e.g., high-speed handpieces)
