Older style timing belts that used trapezoid-shaped teeth, did make noise. ? New (as in the late 20th century) belts use rounded tooth profiles and are a big improvement in terms d noise, wear and timing precision. They are nearly silent in the tiny sizes we are talking about. ?The belt manufacturers all have good technical articles on their websites.
That said v-belts are surprisingly efficient, synchronus belts have only about a 5% advantage.
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On Dec 2, 2023, at 6:19?AM, davesmith1800 <davesmith1@...> wrote:
They make mini lathes with either.
The downside to a timing belt is at high speed it is noisy from what read.?
I think a combo would be best but they build only all poly V or timing belt.
I may someday do that combination?
Dave?
