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Apr 22, 2016
Datasheet
Machine Design

Selecting a Lubricant for Ball Screws (.PDF Download)  

Lubricants on ball screws are as important to their performance and life as are their operating loads, speeds, accuracies, environments, and power requirements. Lubricant reduces the already low friction by minimizing contact between the balls and grooves, thus adding torque and increasing efficiency, while extending the screw’s life by a factor of 10. Proper selection and application of lubricants also affects contamination, a leading cause of premature ball-screw failure......More
Apr 21, 2016
Datasheet
Machine Design

What’s the Difference Between Investment Casting and Sand Casting? (.PDF Download)  

Sand casting and investment casting are methods of creating metal parts by pouring molten metal into three-dimensional molds. Although methods are thousands of years old, both have been refined over the years to minimize the amount of metal used and reduce any extensive machining and finishing required. But significant differences exist between these two methods of making metal parts. First let’s take a look at the basics behind each......More
Apr 19, 2016
Datasheet
Machine Design

A Short History of Membrane Switches (.PDF Download)  

Soon after membrane keyboards and switches were invented 30 years ago, they were ridiculed as a low-cost but unreliable method of inputting data. After decades of improvements, often unnoticed by consumers, membrane switches are now established as effective input and keyboarding hardware for many different technical applications. Today, thanks to their unquestionable advantages, these switches have become high-tech subsystems indispensable to many industries......More
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