Bandsaw tyre failure issue
 

I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Bandsaw tyre failure issue
 

On 21/11/2016 11:40, rick wrote:
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Not had it with mine...

Could it be related to the environment in which the saw is kept?



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Bandsaw tyre failure issue
 

John Rumm wrote:
On 21/11/2016 11:40, rick wrote:
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Not had it with mine...

Could it be related to the environment in which the saw is kept?




Some rubbers perish quickly in the presence of some volatile agents (like
petrol fumes).

Tim

--
Please don't feed the trolls

Bandsaw tyre failure issue
 

rick wrote:
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?
There is a diy solution.

Starting with a polyvee belt either an old aux drive belt from a car or
one from a bearing and belt place. you can glue it vees down onto the
wheels ending with a scarfed joint cut in the direction that keeps it
closed in use.
Wheels quite often have a camber/crown and the poly vee follows this
nicely (or stays flat on flat wheels.

If you baulk at £13 for tyres, check out the prices for startrite bonded
on tyres!!

For the very best blades and free advice try tuffsaws. I like em and
often recommended on various forums.

Bob

Bandsaw tyre failure issue
 

On 21/11/16 12:34, John Rumm wrote:
On 21/11/2016 11:40, rick wrote:
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Not had it with mine...

Could it be related to the environment in which the saw is kept?



You need to keep rubber lubricated and out of UV or this happens.

Castor oil is what we used to use on model plane 'rubber motors' or
glycerinene..there are custom made 'lubricants' that help.

e.g.

http://www.samsmodels.com/products/r...?product_id=62


But I cant help thinking that the rubber should not be doing that inside
in a workshop.,

My guess is you are buying a naff brand of tyre.

--
"Women actually are capable of being far more than the feminists will
let them."

Bandsaw tyre failure issue
 

In article ,
Tim+ writes:
John Rumm wrote:
On 21/11/2016 11:40, rick wrote:
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ...
but every year (or so it seems) when I do want to use it - the rubber
tyres on the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has
loads of cracks .. this makes the machine a real pain as new tyres are
~£13 each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Not had it with mine...

Could it be related to the environment in which the saw is kept?




Some rubbers perish quickly in the presence of some volatile agents (like
petrol fumes).

Ozone is another, if it's near something that generates sparks
(such as motor brushes), or an air ioniser.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

Bandsaw tyre failure issue
 

On 21/11/2016 12:34, John Rumm wrote:


When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Not had it with mine...

Could it be related to the environment in which the saw is kept?



Just in may garage - which is part of house - so does not get
excessively cold or dry.
No problems with any other kit.
I did think was it fumes or cleaning prodcuts - but nothing been near it.

Bandsaw tyre failure issue
 

On 21/11/2016 13:08, The Natural Philosopher wrote:
On 21/11/16 12:34, John Rumm wrote:


Could it be related to the environment in which the saw is kept?


Inside in my garage - which is dry & damp free (no car ever in there so
no petrol fumes)


You need to keep rubber lubricated and out of UV or this happens.

Castor oil is what we used to use on model plane 'rubber motors' or
glycerinene..there are custom made 'lubricants' that help.

e.g.

http://www.samsmodels.com/products/r...?product_id=62

My guess is you are buying a naff brand of tyre.


That was my thought - but nobody else sells spares for Record Power
except them. So little choice.
Maybe putting a smear of some lubricant on them after use might be a
good idea.

They are not in daylight as wheels fully enclosed in metal covers.

Bandsaw tyre failure issue
 

On 21/11/2016 12:59, Bob Minchin wrote:

Starting with a polyvee belt either an old aux drive belt from a car or
one from a bearing and belt place. you can glue it vees down onto the
wheels ending with a scarfed joint cut in the direction that keeps it
closed in use.
Wheels quite often have a camber/crown and the poly vee follows this
nicely (or stays flat on flat wheels.

If you baulk at £13 for tyres, check out the prices for startrite bonded
on tyres!!

For the very best blades and free advice try tuffsaws. I like em and
often recommended on various forums.

Bob


What glue do you glue these to aluminium with ?
They are flat faced

Bandsaw tyre failure issue
 

On 21/11/2016 12:59, Bob Minchin wrote:
rick wrote:


For the very best blades and free advice try tuffsaws. I like em and
often recommended on various forums.

Just looked at Tuffsaws web page ... I drove past that place yesterday :-)

Bandsaw tyre failure issue
 

On 21/11/16 17:00, rick wrote:
On 21/11/2016 12:59, Bob Minchin wrote:

Starting with a polyvee belt either an old aux drive belt from a car or
one from a bearing and belt place. you can glue it vees down onto the
wheels ending with a scarfed joint cut in the direction that keeps it
closed in use.
Wheels quite often have a camber/crown and the poly vee follows this
nicely (or stays flat on flat wheels.

If you baulk at £13 for tyres, check out the prices for startrite bonded
on tyres!!

For the very best blades and free advice try tuffsaws. I like em and
often recommended on various forums.

Bob


What glue do you glue these to aluminium with ?
They are flat faced

Ok. Model plane experience again. Rubber to rubber joints when making
tyres from foam cords or O-ring stock: use super-glue.

To hold them on a rim IF you can get them on the rim before it sets
super-glue also works, or try a contact adhesive like original evostik
(spirit based) but just use it like a normal glue - i.e. dont 'coat
both/let dry'.

--
"It is an established fact to 97% confidence limits that left wing
conspirators see right wing conspiracies everywhere"

Bandsaw tyre failure issue
 

Heat and cold cycling in the place where it lives?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"rick" wrote in message
...
I have a Record Power SBS250 bandsaw ...
I don't use it much, once maybe twice a year for around 30 minutes ... but
every year (or so it seems) when I do want to use it - the rubber tyres on
the outside of the blade drive wheels are snapped.
(both were broken when I went to use it on w/end)
When you look at them the rubber seems to have deteriorated and has loads
of cracks .. this makes the machine a real pain as new tyres are ~£13
each.

When not in use the blade tension is slackened off .. and you can't over
tension the tyres as tension set by wheel diameter.

Anybody else have this problem ?

Bandsaw tyre failure issue
 

On Tuesday, November 22, 2016 at 9:02:10 AM UTC, Brian Gaff wrote:
Heat and cold cycling in the place where it lives?

Are they rubber, or are they polyurethane? If it's polyurethane it could
be hydrolysis, the process that makes shoe soles fall apart when used after
a long period of storage - happens a lot at weddings apparently.

I bought a proper dust mask last year, used it a bit then put it in the shed.
When I got it out last week the elastic in the strap had totally crumbled
into black dust. The rubbery bit that fits on the face looked good as new.

Bandsaw tyre failure issue
 

On 22/11/2016 09:02, Brian Gaff wrote:
Heat and cold cycling in the place where it lives?
Brian

Well as its in a garage .. yes - but no more than any workshop .. it's
part of house so does not get extremes as a stand-alone garage would

Bandsaw tyre failure issue
 

On 22/11/2016 10:40, wrote:
On Tuesday, November 22, 2016 at 9:02:10 AM UTC, Brian Gaff wrote:
Heat and cold cycling in the place where it lives?

Are they rubber, or are they polyurethane? If it's polyurethane it could
be hydrolysis, the process that makes shoe soles fall apart when used after
a long period of storage - happens a lot at weddings apparently.

I bought a proper dust mask last year, used it a bit then put it in the shed.
When I got it out last week the elastic in the strap had totally crumbled
into black dust. The rubbery bit that fits on the face looked good as new.


The appear rubber .. but I can't be sure.

I know what you say, I had 2 pair of Army boots - put away in cupboard
and the 'Tuff' soles completely deteriorated .. went very soft and
pieces falling off.

Have non-MOD walking boots over 25yrs old with Vibram soles and they are
still going great.
MOD buying to a bargain price I guess.

Bandsaw tyre failure issue
 

On Monday, 21 November 2016 16:55:14 UTC, rick wrote:
On 21/11/2016 13:08, The Natural Philosopher wrote:

My guess is you are buying a naff brand of tyre.


That was my thought - but nobody else sells spares for Record Power
except them. So little choice.

You really think no-one else sells rubber wheels of suitable size, or rubber strip you can glue on? Brand name of the tool is irrelevant.


NT

Bandsaw tyre failure issue
 

On 22/11/16 12:53, rick wrote:
On 22/11/2016 10:40, wrote:
On Tuesday, November 22, 2016 at 9:02:10 AM UTC, Brian Gaff wrote:
Heat and cold cycling in the place where it lives?

Are they rubber, or are they polyurethane? If it's polyurethane it could
be hydrolysis, the process that makes shoe soles fall apart when used
after
a long period of storage - happens a lot at weddings apparently.

I bought a proper dust mask last year, used it a bit then put it in
the shed.
When I got it out last week the elastic in the strap had totally crumbled
into black dust. The rubbery bit that fits on the face looked good as
new.


The appear rubber .. but I can't be sure.

I know what you say, I had 2 pair of Army boots - put away in cupboard
and the 'Tuff' soles completely deteriorated .. went very soft and
pieces falling off.

Have non-MOD walking boots over 25yrs old with Vibram soles and they are
still going great.
MOD buying to a bargain price I guess.

Its more about expected use. The average lifetime of a Supermarine
Spiftire was about 30 operational hours. There was very little point in
making it out of stuff that lasted longer.

Nor in making the engines last much longer than that.



--
All political activity makes complete sense once the proposition that
all government is basically a self-legalising protection racket, is
fully understood.

Bandsaw tyre failure issue
 

On 22/11/2016 13:41, wrote:
On Monday, 21 November 2016 16:55:14 UTC, rick wrote:
On 21/11/2016 13:08, The Natural Philosopher wrote:

My guess is you are buying a naff brand of tyre.


That was my thought - but nobody else sells spares for Record Power
except them. So little choice.

You really think no-one else sells rubber wheels of suitable size, or rubber strip you can glue on? Brand name of the tool is irrelevant.


NT



What I meant is that I could find nobody else providing the one piece
'stretch' to fit tyres - only Record.
I'll admit I was searching using bandsaw name and various combinations
of words & part number - Google didn't come up with any options.
If you know different then please advise.

Bandsaw tyre failure issue
 

On Tuesday, 22 November 2016 21:34:25 UTC, rick wrote:
On 22/11/2016 13:41, tabbypurr wrote:
On Monday, 21 November 2016 16:55:14 UTC, rick wrote:
On 21/11/2016 13:08, The Natural Philosopher wrote:

My guess is you are buying a naff brand of tyre.


That was my thought - but nobody else sells spares for Record Power
except them. So little choice.

You really think no-one else sells rubber wheels of suitable size, or rubber strip you can glue on? Brand name of the tool is irrelevant.

What I meant is that I could find nobody else providing the one piece
'stretch' to fit tyres - only Record.
I'll admit I was searching using bandsaw name and various combinations
of words & part number

That's going to get you at best a tiny percentage of the available tyres of suitable size. The brand of bandsaw really has nothing to do with it.

- Google didn't come up with any options.
If you know different then please advise.

Search for rubber tyres. Bandsaws and brands don't enter into it, the minute you put those terms into google it wipes out most of the results.

If there genuinely aren't any tyres on the planet of suitable size, which seems unlikely, then you can use rubber strip & glue.


NT

Bandsaw tyre failure issue
 

On 22/11/2016 22:41, wrote:
On Tuesday, 22 November 2016 21:34:25 UTC, rick wrote:
On 22/11/2016 13:41, tabbypurr wrote:
On Monday, 21 November 2016 16:55:14 UTC, rick wrote:
On 21/11/2016 13:08, The Natural Philosopher wrote:

My guess is you are buying a naff brand of tyre.


That was my thought - but nobody else sells spares for Record Power
except them. So little choice.

You really think no-one else sells rubber wheels of suitable size, or rubber strip you can glue on? Brand name of the tool is irrelevant.

What I meant is that I could find nobody else providing the one piece
'stretch' to fit tyres - only Record.
I'll admit I was searching using bandsaw name and various combinations
of words & part number

That's going to get you at best a tiny percentage of the available tyres of suitable size. The brand of bandsaw really has nothing to do with it.

- Google didn't come up with any options.
If you know different then please advise.

Search for rubber tyres. Bandsaws and brands don't enter into it, the minute you put those terms into google it wipes out most of the results.

If there genuinely aren't any tyres on the planet of suitable size, which seems unlikely, then you can use rubber strip & glue.


NT



I found the tyres for my bandsaw are easily available in the states ,
but not economic to get here, I made my own with some weird soft thick
tape that I have no idea as to its source, but it has worked well enough
for quite a long time. I understand that masking tape will do.

a google search will bring up any number of actual suppliers, such as :
https://www.google.co.uk/url?sa=t&rc...KrzDjOf9GVONXA

Bandsaw tyre failure issue
 

If there genuinely aren't any tyres on the planet of suitable size,
which seems unlikely, then you can use rubber strip & glue.


NT



I found the tyres for my bandsaw are easily available in the states ,
but not economic to get here, I made my own with some weird soft
thick tape that I have no idea as to its source, but it has worked
well enough for quite a long time. I understand that masking tape
will do.

a google search will bring up any number of actual suppliers, such
as :
https://www.google.co.uk/url?sa=t&rc...urce=web&cd=1&


These work out more expensive than buying from Record.

In any event I had a response form Record and they have at least done a
2 for 1 deal .... so now have 2 new tyres fitted.

Need to look into some form of rubber solution to prevent hardening - I
suspect these are not natural rubber, but can't prove either way.