S71906 ACB/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
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71906 ACB/HCP4A Bearing Product Overview & Core Advantages
The S71906 ACB/HCP4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and performance. This precision bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, while also supporting significant radial loads. Its compact design, featuring a 9mm width, makes it ideal for space-constrained, high-reliability applications. Key advantages include its ceramic ball construction for enhanced speed capability and durability, a P4 (ABEC-7) tolerance class for superior running accuracy, and a preload option for optimal system rigidity and rotational precision.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7 | Indicates a series of high-precision angular contact ball bearings. |
| 1906 | Specifies the bearing dimensions: 30mm bore, 47mm outside diameter, 9mm width. |
| ACB | Signifies a 25° contact angle, optimized for high thrust load capacity. |
| HCP4A | Denotes a P4 (ABEC-7) tolerance class and a phenolic (P) cage. |
S71906 ACB/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Performance & Rigidity: The combination of ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces, enabling a high limiting speed of 43,000 rpm. The 25° contact angle and available preload provide high axial rigidity, minimizing deflection under load.
- Superior Load Capacity: Engineered to handle high combined loads, this bearing excels in applications with significant one-direction thrust and radial loads, as reflected in its dynamic (1040 lbf) and static (675 lbf) load ratings.
- Precision & Longevity: Manufactured to P4 tolerance class, it ensures minimal runout and smooth, precise operation. The standard lubrication and sealed design contribute to consistent performance and extended service life in clean environments.
S71906 ACB/HCP4A Bearing Typical Application Areas
- High-Speed Spindles for CNC machining centers and precision grinding machines.
- Precision Instrumentation and medical devices requiring high rotational accuracy.
- High-Frequency Motors and turbo-molecular pumps.
- Aerospace auxiliary systems and other applications where a compact, high-performance bearing solution is critical.
