No matter their size, all aircraft require some kind of mechanism to power systems like landing gear, brakes, flaps, and various flight controls. All mechanical systems require some sort of medium through which they apply force and pressure, and in a hydraulic system, that medium is a liquid or oil. For comparison, pneumatic systems rely on compressed air or gas. In this blog, we’ll break down some of the most common applications for hydraulic systems, and how exactly they work.
Aircraft bearings are a very useful type of fastener, allowing for constraint of movement to specific motions, all while reducing friction between the moving parts. This requires that bearings be accurately installed, lest the bearing’s life expectancy be cut short along with other problems. If a bearing is too loose, movement between components is less restricted, leading to problems such as wear, fretting, scoring, fracturing, and more. When a bearing is too tight on the other hand, increased force for mounting may be required, also leading to possible bearing fractures. According to estimates, about 16% of premature bearing failures are caused by poor installation of bearings. So what are some of the methods to correctly install a bearing, and what are things to avoid?
Tata Steel Port Talbot has been producing and consonantly using their Trunnion Bearings since 1960 when they were first installed. Over the years deterioration and constant use has caused for one of the bearings to fail which brought the company to action to replace in good time.
SKF is designing new Seal designs that uses a new dual-lip technology which provides additional technology for protection in certain environments and a larger range of SKF Explorer groove ball bearings. For users this is a technology that allows their bearing to last longer and function better especially when the environment is not perfectly conditioned to keep bearings in a good condition. For example if the outside environment is wet, dry or even dusty can cause operating conditions to change bearing quite frequently, but with the new Seals the ball bearings can be protected to last longer and operate better.
On February 9 2017, there was an article that was posted by Bearing.com which talks about how SKF South Africa is working to help an OEM customer reduce and cut down their lead times. This occurred because the customers were unhappy with the length of time they had to wait for certain items to be delivered. Because of this, it was only natural that the customer work with SKF bearings.
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