What’s the Difference Between Polypropylene Types?
WEBOct 2, 2018 · Paul Martin1. Polypropylene (PP) is a rigid crystalline thermoplastic used in everyday objects. There are various types of PP available: homopolymer, copolymer, impact, etc. Its mechanical ...
What’s the Difference Between the Sagittal, Coronal, and …
WEBFeb 2, 2015 · The sagittal or lateral plane dives the body into left and right halves and is an x-z plane. Technically, the sagittal or median plane goes right through the middle between the body’s left and ...
Cast Iron and Wrought Iron: What’s the Difference?
WEBJan 9, 2023 · Wrought iron is softer and more ductile than cast iron. It is also highly malleable and can be heated, re-heated and worked into various shapes. In fact, it gets stronger the more it is worked ...
Motion Design 101: Mechanical cam types and operation
WEBOct 1, 2000 · Cams convert ordinary shaft rotation into a more complicated pattern of motion. This is accomplished by keeping one or more followers in contact with the surface of a rotating cam. The follower ...
Planetary Gears: The Basics - Machine Design
WEBFeb 28, 2023 · This article was updated Feb. 28, 2023. It was originally published March 1, 2000. Planetary gears can supply high levels of torque and high-speed reduction. They are also relatively compact ...
How to Choose the Right Control Method for VFDs - Machine …
WEBOct 23, 2014 · Motors account for at least half of the energy consumed in the U.S. Selecting the right control method for an application lets the motor run most efficiently while maximizing torque and overall ...
What Engineers Should Know about Zinc-Nickel Coatings
WEBFeb 26, 2017 · Zn-Ni coatings typically consist of 8 to 14 µ m layer of 12 to 16% nickel alloy next to the substrate topped by a 0.06 to 0.15 µ m trivalent passivate layer and a 0.5 to 4.0 µ m top coat layer ...
What’s the Difference Between Spur, Helical, Bevel, and Worm …
WEBJul 31, 2015 · Each impact makes loud noises and causes vibration, which is why spur gears are not used in machinery like cars. A normal gear ratio range is 1:1 to 6:1. Helical Gears. Helical gears have a ...
What’s the Difference Between Bearing, Shear, and Tear-Out Stress?
WEBJul 1, 2016 · A more conservative approach is to take the area from the edge of the bolt hole to the edge of the material. Shear Stress. For bolted joints without a preload shear, stress is calculated like ...
What Are the Differences Between Sprung and Unsprung Weight?
WEBMay 17, 2016 · In simple terms, a vehicle’s sprung weight is supported by springs of one kind of or another (coiled springs, air springs, Belleville springs). Unsprung weight moves up and down with the wheels ...
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