S71906 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71906 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S71906 ACEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed metric bearing features a single universal matchable (SU) design with an extra light preload (Class A), making it ideal for high-speed operation and applications requiring high rigidity. Its ability to handle combined loads (radial and axial) efficiently, coupled with its compact cross-section, makes it a superior choice for high-reliability precision machinery.
S71906 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact ball bearings. |
| 1906 | Bore diameter: 30 mm, Outside diameter: 47 mm, Width: 9 mm. |
| AC | 25° contact angle, optimized for supporting high axial loads. |
| EGA | Pre-greased with a specific high-performance lubricant suitable for the specified temperature range. |
| HCP4A | Indicates a universally matchable (SU) bearing supplied as one of a pair (2 bearings in a set) with P4A tolerance class for exceptional running accuracy. |
S71906 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The 25° contact angle and precision-ground raceways enable the bearing to support significant combined radial and axial loads. The universal matching (SU) design allows two bearings to be mounted in tandem or back-to-back to achieve even higher system rigidity and moment load capacity.
High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the use of ceramic balls reduces friction and inertia, collectively enabling a high limiting speed of 100,500 rpm. This makes it an excellent high-speed bearing.
Precision and Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration for ultra-smooth operation. The integral seals protect against contamination, and the factory-applied grease provides reliable lubrication across a wide temperature range from -30°C to 110°C, contributing to a long, maintenance-free service life.
S71906 ACEGA/HCP4A Bearing Typical Application Areas
The S71906 ACEGA/HCP4A is engineered for high-performance applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-accuracy actuators)
- High-Frequency Motors and Spindles
- Medical and Dental Equipment (High-speed handpieces, scanners)
- Aerospace Instrumentation (Gyroscopes, navigation systems)
