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#1
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Does anyone know what you would call this type of washer?
My missus had a caliper brake fall of her bike yesterday. No harm done,
luckily. But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side. Sadly, it was lost. It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened. It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it. I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. |
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#2
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Does anyone know what you would call this type of washer?
On Friday, December 6, 2019 at 11:40:23 AM UTC+1, Dan S. MacAbre wrote:
My missus had a caliper brake fall of her bike yesterday. No harm done, luckily. But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side. Sadly, it was lost. It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened. It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it. I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. Every decent bike shop should have those in their spare parts bin because with every caliper you get two of them and most of the times you use only one. Lou |
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Does anyone know what you would call this type of washer?
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#4
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Does anyone know what you would call this type of washer?
On 12/6/2019 4:40 AM, Dan S. MacAbre wrote:
My missus had a caliper brake fall of her bike yesterday. No harm done, luckily. But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side. Sadly, it was lost. It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened. It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it. I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. 'Brake star washer', free to cheap at any LBS (new calipers ship with extras). BTW it will work without a star washer just oil the faces of a plain washer. Oh, and always use a nylok nut when it's not an allen mount caliper. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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Does anyone know what you would call this type of washer?
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#6
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Does anyone know what you would call this type of washer?
patrick wrote:
How bout serrated brake washer , or https://www.ebay.com/itm/DIA-COMPE-C...-/201680850332 I found some on ebay and most people seem to call them 'brake caliper washer' (although cars have something similarly named). |
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Does anyone know what you would call this type of washer?
AMuzi wrote:
On 12/6/2019 4:40 AM, Dan S. MacAbre wrote: My missus had a caliper brake fall of her bike yesterday. No harm done, luckily.* But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side.* Sadly, it was lost.* It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened.* It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it.* I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. 'Brake star washer', free to cheap at any LBS (new calipers ship with extras). BTW it will work without a star washer just oil the faces of a plain washer. Oh, and always use a nylok nut when it's not an allen mount caliper. Okay, thanks. I'd have thought that oil would allow them to move, or is that the idea? It will definitely be going back on with a nyloc nut :-) |
#8
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Does anyone know what you would call this type of washer?
On 12/6/2019 9:56 AM, Dan S. MacAbre wrote:
AMuzi wrote: On 12/6/2019 4:40 AM, Dan S. MacAbre wrote: My missus had a caliper brake fall of her bike yesterday. No harm done, luckily. But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side. Sadly, it was lost. It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened. It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it. I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. 'Brake star washer', free to cheap at any LBS (new calipers ship with extras). BTW it will work without a star washer just oil the faces of a plain washer. Oh, and always use a nylok nut when it's not an allen mount caliper. Okay, thanks. I'd have thought that oil would allow them to move, or is that the idea? It will definitely be going back on with a nyloc nut :-) A caliper brake centerbolt has to be tight enough to not fall off (previous installer failed on that point) but has to remain free to move enough to center over the rim. http://www.yellowjersey.org/photosfr...t/WEINTECH.JPG -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#9
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Does anyone know what you would call this type of washer?
AMuzi wrote:
On 12/6/2019 9:56 AM, Dan S. MacAbre wrote: AMuzi wrote: On 12/6/2019 4:40 AM, Dan S. MacAbre wrote: My missus had a caliper brake fall of her bike yesterday. No harm done, luckily.* But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side.* Sadly, it was lost.* It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened.* It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it.* I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. 'Brake star washer', free to cheap at any LBS (new calipers ship with extras). BTW it will work without a star washer just oil the faces of a plain washer. Oh, and always use a nylok nut when it's not an allen mount caliper. Okay, thanks.* I'd have thought that oil would allow them to move, or is that the idea?* It will definitely be going back on with a nyloc nut :-) A caliper brake centerbolt has to be tight enough to not fall off (previous installer failed on that point) but has to remain free to move enough to center over the rim. http://www.yellowjersey.org/photosfr...t/WEINTECH.JPG Interesting. So, in a sense, they are allowed to 'float' a little bit? But not too much. The 'pointy' washer is not there to hold it solidly in place, but to restrain it a bit. |
#10
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Does anyone know what you would call this type of washer?
On 12/6/2019 11:04 AM, Dan S. MacAbre wrote:
AMuzi wrote: On 12/6/2019 9:56 AM, Dan S. MacAbre wrote: AMuzi wrote: On 12/6/2019 4:40 AM, Dan S. MacAbre wrote: My missus had a caliper brake fall of her bike yesterday. No harm done, luckily. But between the caliper and the frame was a rather handy washer that (mostly) stops it migrating to either side. Sadly, it was lost. It's a fairly thick washer with about thirty points sticking out of each face around the circumference, so that it bites into both surfaces when tightened. It isn't like those star washers that sit under a nut to stop it undoing - this is meant to stop parts turning in either direction once they're tightened onto it. I would like to get a replacement, but I've never seen them anywhere else, and have no idea what they are called. 'Brake star washer', free to cheap at any LBS (new calipers ship with extras). BTW it will work without a star washer just oil the faces of a plain washer. Oh, and always use a nylok nut when it's not an allen mount caliper. Okay, thanks. I'd have thought that oil would allow them to move, or is that the idea? It will definitely be going back on with a nyloc nut :-) A caliper brake centerbolt has to be tight enough to not fall off (previous installer failed on that point) but has to remain free to move enough to center over the rim. http://www.yellowjersey.org/photosfr...t/WEINTECH.JPG Interesting. So, in a sense, they are allowed to 'float' a little bit? But not too much. The 'pointy' washer is not there to hold it solidly in place, but to restrain it a bit. Right. The arms float on the spring which passes through a slot in the centerbolt. People new to bicycles just pull the arms to one side but on first brake application they move right back. A slight turn of the centerbolt, either with a wrench on the centering slots or (as shown above) using the spring for leverage with a light tap centers the spring slot. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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