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Help me identify what I found inside a bandsaw

Onefastgsx

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Nov 5, 2011
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185
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Indiana
I was given a Ryobi 9in bandsaw today. I was told it was only used once or twice, then left in a barn for the last 15 years.
I opened up the side cover and these bits of what look to be an old brittle rubber band fell out. Can anyone tell me where this might have came from? Maybe like a rubber cover that was on the blade wheels originally?
If it is off the wheels, will I need to replace it before using the saw? Or can I put in a new blade without this?
 

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jjkrjh

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May 3, 2008
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Ohio
Looks like the band saw tire rubbers. Checked quick and looks like you can get a two pack for $11 plus change
 

Dingleburry

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Mar 2, 2016
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Great white north in an igloo
Fun fact. Dont know if they call it this, but its called "lagging". Drum lagging, pulley lagging. Etc.

"Lagging is the term used to describe the application of a coating, cover or wearing surface which is sometimes applied to pulley shells.

Lagging is often applied in order to extend the life of the shell by providing a replaceable wearing surface or to improve the friction between the belt and the pulley. Notably drive pulleys are often rubber lagged for exactly this reason."
 
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matt_i

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Mar 14, 2008
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SE Michigan
The urethane tires should be crowned so that the blade will stay centered.

Also its a large friction-improver over metal-on-metal :D Not to mention the teeth eating the aluminum sheave slowly over time because of the set (offset from centerline)
 
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rlitman

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Oct 18, 2010
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Long Island
The urethane tires should be crowned so that the blade will stay centered...

I used to think that, because the surface is crowned. But when I changed the tires on my Delta and the replacements were flat, I noticed that the surface under my cracked tires was actually where the crown starts.
 

neophyte

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Apr 23, 2012
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Pennsylvannia
Some bandsaws are designed so the blade rides on the center of the wheels including the teeth. This would be the point of crowning on the rubber or urethane wheel covers or the base metal wheels.
Other bandsaws are designed so the blade runs on the front of the wheels with the teeth extending forward of the bandsaw wheels so they don’t wear the wheel surface.
 

rlitman

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Oct 18, 2010
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Long Island
Some bandsaws are designed so the blade rides on the center of the wheels including the teeth. This would be the point of crowning on the rubber or urethane wheel covers or the base metal wheels...

No. Wheel crowning is to control blade tracking.
 

Git

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May 18, 2008
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Location
S Cal
I would say you are both right. Crowned tires help in tracking but I use the 'Alex Snodgrass" method and run the 'deepest part of the gullet' in the center of the wheel

 

OccupantRJ

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May 15, 2009
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Eastern North Carolina
Those bandsaw tires are urethane. Urethane will disintegrate like that over time under the right temperature and humidity conditions. I had to keep some urethene spare parts and material at work replaced whenever they would sit on the shelf too long.
 
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