Engineering Plastic Bearings
Source: China Bearing Network | Time: 2014-08-11
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Engineering plastic bearings are becoming increasingly popular in various industrial applications due to their lightweight, durability, and low maintenance requirements. One notable use of these bearings is in the control mechanisms of hot air balloons, where they provide smooth and reliable operation under extreme conditions.
In a large-scale hot air balloon project, engineers faced unique challenges. The balloon's seal was ten times larger than traditional passenger balloons, making it one of the largest ever built. To manage the movement of the lowering valve, a system involving sliding bearings was implemented. These bearings, made from "iglidur" engineering plastic, allowed the pilot to easily open or close the valve by turning a handwheel, thus controlling the descent speed safely.
The design also included sliding bearings on the control bars of the hatch covers. These components were crucial for ensuring smooth and safe operations during takeoff and landing. Additionally, the "iglidur" bearings helped create a lightweight sliding seat base, which was equipped with pneumatic slings that absorbed most of the impact during forced landings, significantly reducing potential injuries to the crew.
Testing was extensive, with over 200 kilograms of test equipment and multiple heavy components working together in a highly customized environment. The team needed bearings that could operate smoothly, handle dust and dirt, and withstand extreme temperatures. After rigorous evaluation, they chose the "iglidurG" and "iglidurW300" types, known for their high load capacity, wear resistance, and adaptability to harsh environments.
Igus offers over 650 sizes of "iglidurG" bearings, ideal for high-load and high-speed applications, while the "iglidurW300" type is specifically designed for environments with significant wear and tear. With 28 different materials available, engineering plastic bearings can be tailored for use in underwater, high-temperature, or general-purpose settings.
Whether you're looking for a durable solution for your machinery or exploring new applications for plastic bearings, understanding the right material and design is essential for long-term performance and reliability.
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