A friend of mine has a small lathe which has flat-belt pulleys, but no
belt. Is this stuff available anywhere?
If not, is there any option other than replacing the pulleys with V-belt
Thanks for any suggestions,
Still available, look in one of the vintage preservation magazines like 'Old
Glory' and Stationary Engine magazine, or look on Google.
Don't forget that you need to sort out a joining device to hold the ends
together, there are various methods available.
Peter & Rita Forbes
I used a guy a Walthamstow, forget the company name at the moment, who would
skive the belts and lend you a hot press to join them. I'll search my
records to try to come up with the company name if its any help or indeed,
local to you.
Is that the technical term for those long lapped joints (skive) ? I
have a flat belt issue looming as well, and it has to be made in place.
Are these hot presses small items you can use for insitu bonding ?
Not to argue against skived or clipped joints, but I recently butted and
harness stitched up a belt. See the instructions in the South Bend "How to
run a Lathe", if you have it. If not, I could probably describe it. I used
to make the leather sheathes for my knives, back in my knifemaking days, so
harness stitch is not a big deal for me, definitely easier than a skive
Midland, ON Canada
Yes, Skiving is the term for the long lapped joints. The belts supplied
these days are often a "grass" green, about an 1" wide, but this can vary to
It's common that these belts need to be fixed round the mandrel etc without
taking the machine apart.
What you do is measure round the top and bottom pulleys to get an overall
length, this measurement is given to the belt company, who skive the ends so
that when jointed, the belt is to your size.
The hot press is a hand held device that runs off 240 volts mains. All it
does is speed up the gluing process. Cures the glue in minutes, so
production can get back on track. Yes, it is used with the belt insitu.
You can just glue the ends of the belt together with the supplied adhesive,
clamp it up square and tight, and leave for 24 hours to cure.
I'll search for the company name tonight.
Thanks, thats good news. In this case the short belt enters and exits
via different holes in the headstock casting - no amount of taking
apart will avoid the need to make the belt in situ - so I am very
pleased to hear the tool can be offered up to the lathe, though I am
not sure I understand how the joint is made and stays flexible. It must
be a rubber adhesive I suppose.
The joint will be flexible enough to travel over the pulleys. The skived
belt will have a marked line on each side of the belt at the end of the
skiving. Simple apply the glue and offer the 2 halves of the belt together,
up to the lines. If you don't have the hot press, a simple wooden jig
(Formica faced, just in case you over glue) with a step in it will ensure
the belt is aligned straight before clamping up for 24 hours.
Tip. When you measure the length of belt required, by passing a tape measure
around both pulleys, make sure nearly all the adjustment is off, thus giving
you enough to take up any slack. Personally, I would knock a 1/4" off your
measurement, just in case they make it a bit on the "generous" side
No Adrian, thats just what I am trying to avoid. The previous owner
said he had tried that and it was not a good idea on small diameter
pulleys (this one is about 4" and only about a foot away from the
motor). It was noisy and didn't give smooth drive. Thats why this
skived belt joint attracted my attention. Thanks to this excellent
thread the mystery now appears solved (and it seems I have been saved
the cost of renting the hot press too).
Now I am looking forward to doing a little skiving !