71906 CE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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71906 CE/HCP4ADGB Bearing Product Overview & Core Advantages
The 71906 CE/HCP4ADGB is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and speed. This universal matchable (SU) bearing is designed to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class ensures ultra-precise running accuracy, while the ceramic ball and phenolic cage construction enable superior high-speed performance and reduced weight. Pre-lubricated and featuring a 15° contact angle with light preload (Class B), it delivers high rigidity and operational stability in compact assemblies.
Model Code Deep Explanation
| Code Segment | Technical Meaning |
|---|---|
| 71906 | Basic bearing series and size designation (30mm bore, 47mm OD, 18mm width). |
| CE | Indicates a 15° contact angle and specific internal design optimizations. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DGB | Specifies a Universal Matchable (SU) arrangement. Two bearings are face-to-face (DF) mounted and can be universally paired in any combination. |
71906 CE/HCP4ADGB Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This extends service life and enables higher limiting speeds (100,500 rpm) compared to all-steel equivalents.
- Phenolic Resin Cage: This lightweight, high-strength cage offers excellent dimensional stability at high speeds and is well-suited for the demanding conditions of precision spindles.
- High Rigidity & Preload: The bearing is supplied with a light preload (Class B), which eliminates internal clearance. This provides superior system rigidity, minimizes runout, and ensures precise rotational accuracy under load.
- Optimized for Matched Sets: As a Universal Matchable (SU) bearing, it can be paired with another identical bearing in a face-to-face (DF) arrangement without selective matching, simplifying installation and ensuring predictable, high-performance preload characteristics.
- Wide Operating Range: Pre-lubricated for immediate use and capable of operating within a temperature range of -30°C to 110°C.
71906 CE/HCP4ADGB Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications requiring high speed, high rigidity, and exceptional running accuracy. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors and Electric Spindles.
- Medical Equipment: Dental handpieces and surgical tools.
- Aerospace Instrumentation and Robotic Drives.
