709 CE/HCP4AHDGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
709 CE/HCP4AHDGA
Basic Information
System of measurement
Metric
Weight
0.026 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
24 mm
Outside diameter tolerance
-0.004mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
9
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
952 lbf
Radial static load rating
418 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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709 CE/HCP4AHDGA Bearing Product Overview & Core Advantages
The 709 CE/HCP4AHDGA is a super-precision angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. Operating under a P4A tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its universal matchable (SU) design allows for flexible mounting in pairs to support combined loads (radial and axial) from both directions. The combination of a ceramic ball material and a phenolic cage enables superior high-speed performance and thermal stability, making it an ideal choice for advanced machinery requiring maximum reliability and precision.
709 CE/HCP4AHDGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 709 CE/HCP4AHDGA is decoded as follows:
- 709: Basic bearing series, indicating a metric, light series angular contact bearing with a 9mm bore.
- C: 15° contact angle, optimized for high-speed operation with moderate axial load capacity.
- E: Extra light preload (Class A), which minimizes friction and heat generation for higher limiting speeds.
- HC: Hybrid Ceramic construction, featuring ceramic balls for reduced weight, lower friction, and extended service life.
- P4A: Tolerance class denoting very high precision, with tight controls on bore, outside diameter, and width tolerances.
- HDGA: Designates a Universal Matchable (SU) bearing, supplied as one of a pair that can be mounted in any combination (DB, DF, DT) to handle bidirectional thrust loads.
709 CE/HCP4AHDGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to a P4A tolerance class with stringent dimensional controls, this bearing provides a rigid and precise shaft support system, critical for minimizing runout and vibration.
- Superior High-Speed Capability: The hybrid ceramic design with lightweight silicon nitride (Si3N4) balls and a phenolic resin cage significantly reduces centrifugal forces and inertial heat, allowing for a high limiting speed of 95,000 rpm.
- Optimized Load Capacity: The 15° contact angle and universal matchable (SU) design enable the bearing to efficiently handle combined radial and axial loads in either direction when mounted in pairs.
- Thermal and Operational Stability: The phenolic cage offers excellent dimensional stability under thermal expansion and is self-lubricating, contributing to consistent performance across the specified temperature range (-30°C to 110°C).
709 CE/HCP4AHDGA Bearing Typical Application Areas
This super-precision bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles for high-speed milling, grinding, and turning centers.
- High-Frequency Spindles in PCB drilling and routing equipment.
- Precision components in aerospace and semiconductor manufacturing equipment.
- High-speed rotors in medical and dental handpieces.
- Advanced robotics and motion control systems.
