S71915 ACEGA/P4A
Sealed Super Precision Angular Contact Ball 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
S71915 ACEGA/P4A Bearing Product Overview & Core Advantages
The S71915 ACEGA/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of rotational accuracy and rigidity. As a single bearing that is Universal Matchable (SU), it is engineered to be paired with an identical bearing to form a precisely preloaded set, offering exceptional performance in a compact design. Its core advantages include the ability to accommodate combined loads (radial and axial), high operational speeds, and outstanding dimensional stability, making it ideal for high-reliability, high-precision machinery.
S71915 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Designates a super-precision bearing. |
| 7 | Indicates an angular contact design. |
| 1915 | Specifies the bearing size: 75mm bore, 105mm OD, 16mm width. |
| AC | A 25-degree contact angle, optimized for supporting high axial loads. |
| EGA | Signifies the bearing is pre-greased with a specific, high-performance lubricant. |
| P4A | Denotes an ultra-precise tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
S71915 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25-degree contact angle and high-grade chrome steel construction enable the bearing to effectively handle significant combined radial and axial loads, providing a stable and rigid support structure.
- Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the precision-ground components contribute to a high limiting speed of 28,000 rpm, making it an excellent high-speed bearing.
- Exceptional Running Accuracy: The P4A tolerance class guarantees extremely tight dimensional control on the bore, outside diameter, and width, resulting in smooth, quiet operation with minimal vibration.
- Ready-to-Use and Sealed: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate installation, reducing maintenance requirements.
S71915 ACEGA/P4A Bearing Typical Application Areas
The S71915 ACEGA/P4A is ideally suited for the most demanding precision applications, including:
- Machine Tool Spindles for high-speed milling, grinding, and turning centers.
- Precision Instrumentation and measuring equipment.
- High-frequency Spindles in PCB drilling and routing machines.
- Robotic arm joints and other automation components requiring high positional accuracy.
