706 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
706 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.005 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
17 mm
Outside diameter tolerance
-0.004mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
340 lbf
Radial static load rating
110 lbf
Limiting speed
230 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:
$ 99.81
/ each
In Stock
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706 ACE/HCP4A Bearing Product Overview & Core Advantages
The 706 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing features a 25° contact angle and is supplied with a preload, delivering superior running accuracy and high rigidity. Its compact design, with a 6 mm bore and 17 mm outside diameter, is ideal for high-speed spindles and precision instruments where space is limited and reliability is critical. The combination of a ceramic ball material and P4 (ABEC-7) tolerance class ensures minimal vibration, low heat generation, and extended service life.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 706 | Basic bearing series designation. |
| ACE | Indicates a 25° contact angle and the bearing is supplied with a preload for high rigidity and precise rotational performance. |
| HCP4A | Denotes the P4 (ABEC-7) tolerance class for ultra-precision, along with specific internal design and material enhancements (Hybrid Ceramic with Phenolic cage). |
706 ACE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation, enabling higher limiting speeds (230,000 rpm) and longer lubricant life.
- High Rigidity & Precision: The 25° contact angle and applied preload work in unison to provide exceptional axial and radial stiffness, minimizing deflection under load and ensuring supreme running accuracy.
- Optimized for High Speeds: The lightweight phenolic resin cage is ideal for high-speed operation, offering excellent strength and guidance with minimal friction.
- Superior Lubrication: The bearing comes pre-lubricated with a high-performance grease suitable for the specified temperature range (-30° to 110°C), ensuring immediate operation and long-term reliability.
706 ACE/HCP4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications where high speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- High-Frequency Spindles for PCB drilling and milling
- Precision Machine Tool main shafts and ball screws
- Medical and Dental Handpieces
- High-Speed Automation and robotics
- Optical Scanners and encoders
