Those ancient planetary drives I first got involved with in 1979 (

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If my last posting prompted you to look at a copy of a material cert, you probably noticed that the cert has much more information on it than just ...

Designing gears is somewhat of a mathematical puzzle. You have lots of interconnected factors to play with in hopes of finding the “best” overall s...

I was trained in the cult of the integer face contact ratio. A few adherents to this belief are still above ground, but the introduction of persona...

In my last blog we went over “pitch” descriptions for spur gears. Engineers being stubborn individuals, it has not been possible to reach a consens...

Spur gears have been around “forever.” That ancient astronomical device recovered from the Mediterranean Sea a few years ago shows the antiquity an...

When the average civilian hears the word “gear,” if they think of mechanical things at all, they envision a big spur gear, perhaps in a clock or wi...

Anyone actually enjoy quoting? For such an important part of daily business the process of establishing prices to offer a customer seems universall...