719/9 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
719/9 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.007 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
20 mm
Outside diameter tolerance
-0.005mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
11
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
439 lbf
Radial static load rating
165 lbf
Limiting speed
180 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:
$ 108.44
/ each
In Stock
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719/9 ACE/HCP4A Bearing Product Overview & Core Advantages
The 719/9 ACE/HCP4A is a single-row angular contact ball bearing designed for applications demanding high precision and high-speed performance. Engineered to accommodate combined loads (radial and axial loads in one direction), this bearing features a P4 (ABEC-7) tolerance class for exceptional running accuracy. Its ceramic ball construction and phenolic cage contribute to superior performance in demanding conditions, offering low friction, high rigidity, and extended service life.
719/9 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 719/9 | Bearing series and bore diameter (9 mm) |
| ACE | Angular Contact design with 25° contact angle |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls) |
| P4A | P4 tolerance class with specific internal clearance and geometric accuracy |
719/9 ACE/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of ceramic balls and phenolic resin cage enables operation at limiting speeds up to 180,000 rpm, reducing centrifugal forces and heat generation.
- Precision Performance: Manufactured to P4 (ABEC-7) tolerance class, this bearing ensures minimal runout and vibration for applications requiring high rotational accuracy.
- Rigidity & Load Capacity: The 25° contact angle provides excellent axial load capacity while maintaining good radial load performance, with a dynamic load rating of 439 lbf and static load rating of 165 lbf.
- Hybrid Advantages: Ceramic balls offer electrical insulation, reduced weight, and superior performance in high-temperature environments compared to all-steel bearings.
- Temperature Resistance: Suitable for operating temperatures from -30°C to 110°C, making it ideal for various industrial applications.
719/9 ACE/HCP4A Bearing Typical Application Areas
- High-speed spindles for precision machining centers and CNC equipment
- Medical equipment including dental handpieces and surgical tools
- Aerospace components requiring high precision and reliability
- Robotics and automation systems where accuracy and speed are critical
- Laboratory and analytical instruments demanding minimal vibration and high rotational accuracy
