Description
Product Overview
The Winkel PR4.455 bearing is engineered to meet the rigorous demands of modern industrial hinge systems. With a precise outer diameter of 73.8mm, this composite support roller bearing delivers exceptional rotational smoothness while handling substantial radial and axial loads. Constructed from high‑grade steel alloys and reinforced with advanced composite materials, the bearing resists wear, corrosion, and fatigue, extending its service life even in harsh environments. Its one‑piece design simplifies installation, reduces inventory complexity, and ensures consistent performance across a wide range of applications, from heavy‑duty machinery to precision equipment. The bearing’s compact dimensions—measuring just 0.39 x 0.39 x 0.39 inches and weighing only 1.76 ounces—allow it to fit into tight spaces without compromising strength. Whether you are upgrading existing equipment or specifying new builds, the Winkel PR4.455 provides the reliability and efficiency required for continuous operation.
![[Product front view showing all components]](https://www.myshopall.store/wp-content/uploads/2026/07/9e6ff43fcf2a4fe6bf108ddadd96bb54.jpg)
Usage
Designed for versatility, the Winkel PR4.455 bearing excels in a variety of industrial settings. It is ideal for hinge mechanisms in manufacturing lines, robotic arms, conveyor systems, and heavy‑duty doors where smooth, repeatable motion is critical. The bearing’s high load capacity makes it suitable for applications that involve frequent opening and closing cycles, such as packaging equipment, automotive assembly stations, and aerospace component fixtures. Its resistance to dust, moisture, and temperature fluctuations enables reliable operation in factories, warehouses, and outdoor installations. Maintenance crews appreciate the bearing’s straightforward mounting process—simply align the bearing with the shaft and press it into place using standard tools. This ease of service reduces downtime and minimizes the need for specialized training, allowing technicians to focus on productivity rather than complex repairs.
Why Choose Us
Choosing the Winkel PR4.455 bearing means selecting a product backed by rigorous quality assurance and a commitment to customer satisfaction. Each bearing undergoes a multi‑stage testing protocol that includes dimensional verification, load testing, and endurance cycling to guarantee performance standards are met or exceeded. Our manufacturing facilities employ precision machining and clean‑room assembly techniques, ensuring that every unit is free from contaminants that could affect longevity. In addition, we provide comprehensive technical support, offering installation guidance, troubleshooting assistance, and a responsive after‑sales service team ready to address any concerns. With a proven track record reflected in a #21 ranking within the Bearing Hinges category on major e‑commerce platforms, the Winkel PR4.455 is trusted by engineers and procurement specialists worldwide. When you purchase from us, you receive not only a high‑quality component but also a partnership dedicated to your operational success.
Key Features
- High load capacity ensures reliable performance under heavy duty conditions
- Composite support design reduces friction for smoother operation and longer life
- Compact size fits into tight assemblies without sacrificing strength
- Corrosion‑resistant materials protect against harsh industrial environments
- Dedicated customer support and warranty for peace of mind
FAQ
What is the maximum load this bearing can handle?
The Winkel PR4.455 bearing is rated for a dynamic radial load of up to 1,200 N and a static load of up to 2,500 N, making it suitable for most industrial hinge applications.
Can this bearing be used in outdoor environments?
Yes. The bearing’s composite materials and corrosion‑resistant steel alloy are designed to withstand moisture, dust, and temperature variations commonly encountered outdoors.
Is any special tooling required for installation?
No special tools are needed. The bearing can be installed using standard hand tools such as a press or a simple hammer, following the alignment guidelines provided in the installation manual.
What warranty does the bearing come with?
We offer a one‑year limited warranty covering manufacturing defects and premature wear under normal operating conditions.
How do I verify the authenticity of the product?
Each bearing is shipped with a unique serial number and QR code that can be scanned on our website to confirm authenticity and traceability.





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