Paul
I put one of those on my machine in 1977 when the leather belt went
south. As I remember the cost then was about $50, I do not know what
it would cost now. That belt is still working fine with no problems
except the saftey slip today. Sure saves the machine on crashes. For
another option I would use the same belts from McMaster-Carr that I
am using on the Burke mill, but you will have to take the head apart
to fit it.
JWE
--- In southbendlathe@..., "Paul R. Hvidston"
<p.hvidston@i...> wrote:
Does anybody have a 9" SB with a similar configuration? My 1941(?)
"Precision Model A" headstock has Timken roller bearings and no
back gear
(as seen from the attached photo). Nothing hangs off of the two
ears on the
headstock casting. With the headstock 3-step cone-pulley along with
another
4-step jack-shaft on the floor-mount pedestal I get 12 speeds. The
jack-shaft and motor were cobbled together from pillow blocks and a
non-reversing repulsion motor. I'd like to re-engineer the power
train
starting with a TEFC 1 HP induction motor and possibly add a two-
step pulley
setup off the motor shaft in order to get the equivalent of a back-
gear.
Spindle speeds? I'd like to end up with 25-2100 RPM. I would
imagine the
roller bearings could handle the high speed safely. Flat belt? has
anybody
purchased a belt and cement from SBL? Others? Cost? Is it worth
machining
v-belt pulleys and getting rid of all that flat belt stuff? I
read/heard
that flat belt slip is a good safety factor if you should crash
your cutter
into the chuck (or whatever).
BTW, surfing the SBL web site I found more history/documentation on
the 9"
series at:
Paul R. Hvidston
Upland, CA
