706 CE/P4A
Miniature Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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706 CE/P4A Bearing Product Overview & Core Advantages
The 706 CE/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4 (ABEC-7) tolerance class, this single-row bearing is preloaded to ensure high system rigidity and minimal runout. Its optimized 15° contact angle provides superior performance under combined loads, making it an ideal choice for high-precision spindles and other critical machinery where reliability and precision are paramount.
706 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and handling combined (radial and axial) loads. |
| E | Reinforced Design | Increased load capacity through optimized internal geometry and more/bigger balls. |
| P4 | Tolerance Class (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for high-precision applications. |
| A | Preload Level | Specific light preload applied to eliminate internal clearance, enhancing rigidity and positioning accuracy. |
706 CE/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic resin cage, a 15° contact angle, and factory-applied lubrication enables a high limiting speed of 220,000 rpm (grease), making it a true high-speed bearing.
- High Rigidity & Precision: The bearing is supplied with a specific preload (A), which eliminates internal clearance. This results in significantly increased system stiffness, precise shaft positioning, and reduced vibration and noise.
- Superior Load Capacity: The reinforced "E" design incorporates a larger ball complement (8 balls of 3.175 mm diameter), providing enhanced dynamic and static load ratings (351 lbf / 112 lbf) for its compact bearing dimensions (6mm bore, 17mm OD).
- Optimized Material Selection: Constructed from high-grade chrome steel for both rings and balls, ensuring long service life and consistent performance under demanding operating conditions.
706 CE/P4A Bearing Typical Application Areas
The 706 CE/P4A is engineered for high-performance applications where precision and speed are critical. Its primary uses include:
- High-Frequency Spindles: PCB drilling and milling spindles, small precision grinding spindles.
- Precision Instrumentation: Optical scanners, high-speed centrifuges, coordinate measuring machines.
- Advanced Robotics: Joints and actuators in high-speed, precision robotic arms.
- Medical and Dental Equipment: Handpieces, small surgical tools, and laboratory automation equipment.
