Hi, my name is Vinnie Allegro and I'm a BRECOflex applications engineer. Today
I'm going to talk about one of our frequently asked questions which is how
to identify the series and pitch of a BRECOflex timing belt.
We have several series and pitches available including our T-series, AT
series, English pitch, and HTD series belts. Now the easiest to identify would
be our HTD series which typically has a black polyurethane and is noted by its
rounded tooth profile which is pretty unique compared to the majority of our
belts which would have trapezoidal tooth profiles. Now another common question
would be how do I tell the difference between a T-Series and an AT-series?
Both have trapezoidal tooth profiles but the difference would be that a T-series such
as this T20 is able to mesh with itself when you fold the belt over like this.
Now a similar AT-series like this AT10 "move" is not able to mesh with itself when
you fold the belt over. Now our English pitch belts which are available from MXL
all the way to XH pitch also have a trapezoidal tooth profiles and they can
also mesh with themselves, so in order to tell which English pitch belt that
you have you're going to have to measure the pitch.
The best way to measure the pitch for your timing belt is with a pair of calipers. So for accuracy we want
to measure over the span of 10 teeth and we want to measure in the mold grooves
between the teeth for accuracy as well. So the span of 10 teeth measures 95.25
millimeters which then divided by 10 to get 9.525 millimeters so
since it's not an even number of millimeters,
that would be an indicator that we have an English pitch belt so that
9.525 is really .375 or 3/8 so we have a T3/8"
belt here also known as L pitch. Similarly for this larger belt if we measure over
a span of ten teeth we get 200 millimeters which divided by 10 gives you a pitch of 20 millimeters.
That's nice and even so we know this is a T20 belt.
So if you're still having trouble identifying the series and/or pitch of your belt there are some other options available.
You could go to www.brecoflex.com and download our B212 catalog where you'll find
that each series and pitch has its own page with a profile picture that you can
line your belt up to as long as you printed the pages at a one-to-one scale.
You can also give us a call and we'll send this poster to you which has a good
selection of our most popular pitches and you can line your belt up to those
as well. And worst case scenario if you can't find your belt in our catalogs or
on this poster you can always arrange to have your belt sent to us and have one
of our applications engineers inspect your belt where they will then quote the
belt and send it back to you. So that's always an option.
I hope this video has been useful in helping you identify the series and pitch of your BRECOflex
timing belt. For more information on BRECOflex products please subscribe
to our Youtube channel. And for free applications engineering support you can
call the number at the end of this video. Thanks for watching.