7019 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7019 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
1.08 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
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
23 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:
$ 1039.37
/ each
In Stock
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7019 CE/HCP4A Bearing Product Overview & Core Advantages
The 7019 CE/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and reliability. Engineered to accommodate combined loads (radial and axial), this bearing features a 15° contact angle optimized for high-speed operation. Its single-row design with ceramic balls and phenolic cage significantly reduces centrifugal forces and heat generation, enabling superior performance at limiting speeds up to 23,000 rpm. Manufactured to P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-precision, high-rigidity applications.
7019 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CE | Enhanced internal design with ceramic balls | Reduced weight, lower friction, and higher speed capability |
| HC | Phenolic (Hybrid Composite) cage | Excellent strength-to-weight ratio and reduced centrifugal forces at high speeds |
| P4A | P4 tolerance class with specific running accuracy requirements | Ultra-precise operation with minimal vibration for critical applications |
7019 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls (Si3N4) provides superior performance through reduced density, lower thermal expansion, and electrical insulation properties. This results in higher limiting speeds and extended service life.
- High-Speed Phenolic Cage: The lightweight phenolic resin cage offers exceptional dimensional stability and low friction, crucial for maintaining bearing integrity at extreme rotational velocities up to 23,000 rpm.
- Precision Engineering: Manufactured to P4 tolerance standards with tight dimensional control on bore, outside diameter, and width. This ensures precise fitment and optimal load distribution.
- Optimized Load Capacity: With a 15° contact angle, the bearing efficiently handles combined radial (9,945 lbf dynamic) and axial loads, providing high rigidity and stable operation under complex loading conditions.
- Preload Availability: The bearing can be supplied with preload, enabling immediate high-stiffness performance and reduced deflection in the assembled application.
7019 CE/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles: CNC milling, grinding, and machining centers requiring precision and high rotational speeds.
- Precision Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging devices.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and auxiliary power units (APUs).
- Semiconductor Manufacturing: Wafer handling robots, stepper stages, and other precision motion control systems.
- High-Performance Pumps & Compressors: Where reliability, speed, and precision are critical.
