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#11
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Coaster Brake Failure
jbeattie wrote:
On Monday, February 25, 2019 at 8:39:17 AM UTC-8, Frank Krygowski wrote: On 2/25/2019 9:16 AM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? Yes, I'd have liked some technical detail. Although I realize that's not the point of the article. I will say, a three speed with coaster brake is a fairly complicated bucket of parts. I still don't know what was wrong with the Shimano one that I had to disassemble multiple times because of its second gear skipping. It's working now, but I don't feel confident about it. OTOH, there's not much to the brake part of the device. Bad grease. https://www.sram.com/sites/all/theme...FINAL_1.19.pdf -- Jay Beattie. Interesting. We had some 25,000 V circuit breakers that failed to open for exactly the same reason. Bad grease dried up and prevented certain moving parts from moving when commanded to do so. |
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#12
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Coaster Brake Failure
On 2/25/2019 1:12 PM, jbeattie wrote:
On Monday, February 25, 2019 at 8:39:17 AM UTC-8, Frank Krygowski wrote: On 2/25/2019 9:16 AM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? Yes, I'd have liked some technical detail. Although I realize that's not the point of the article. I will say, a three speed with coaster brake is a fairly complicated bucket of parts. I still don't know what was wrong with the Shimano one that I had to disassemble multiple times because of its second gear skipping. It's working now, but I don't feel confident about it. OTOH, there's not much to the brake part of the device. Bad grease. https://www.sram.com/sites/all/theme...FINAL_1.19.pdf Marketing opportunity! No longer 'permanent lubrication' but now 'FATAL lubrication'. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#13
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Coaster Brake Failure
On Monday, February 25, 2019 at 11:59:23 AM UTC-8, Ralph Barone wrote:
jbeattie wrote: On Monday, February 25, 2019 at 8:39:17 AM UTC-8, Frank Krygowski wrote: On 2/25/2019 9:16 AM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? Yes, I'd have liked some technical detail. Although I realize that's not the point of the article. I will say, a three speed with coaster brake is a fairly complicated bucket of parts. I still don't know what was wrong with the Shimano one that I had to disassemble multiple times because of its second gear skipping. It's working now, but I don't feel confident about it. OTOH, there's not much to the brake part of the device. Bad grease. https://www.sram.com/sites/all/theme...FINAL_1.19.pdf -- Jay Beattie. Interesting. We had some 25,000 V circuit breakers that failed to open for exactly the same reason. Bad grease dried up and prevented certain moving parts from moving when commanded to do so. These can hardly be called circuit breakers because of the incredible amount of power going through them. They are not build as and electrical mechanism so much as a mechanical one. I could design a better one but they don't pay you to improve a product unless they can make a profit from it. |
#14
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Coaster Brake Failure
On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot
wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news. We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". -- Cheers, John B. |
#15
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Coaster Brake Failure
On 2/26/19 12:28 AM, John B. Slocomb wrote:
On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news. We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM]. How do they work? |
#16
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Coaster Brake Failure
On 26/2/19 5:09 pm, Tosspot wrote:
On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news.Â* We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM].Â* How do they work? I think most tractors have wet brakes. Mine does. They seem to work. -- JS |
#17
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Coaster Brake Failure
On Tue, 26 Feb 2019 07:09:35 +0100, Tosspot
wrote: On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news. We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM]. How do they work? Never the less, that is how they were built. A famous race in the very early days of mountain bikes was called "Repack" because one trip down Mount Tamalpais and you had to repack the rear brake. -- Cheers, John B. |
#18
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Coaster Brake Failure
On Tue, 26 Feb 2019 18:09:31 +1100, James
wrote: On 26/2/19 5:09 pm, Tosspot wrote: On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news.* We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM].* How do they work? I think most tractors have wet brakes. Mine does. They seem to work. Wet as in "water" or wet as in "oil"? -- Cheers, John B. |
#19
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Coaster Brake Failure
On 2/26/2019 12:09 AM, Tosspot wrote:
On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news. We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM]. How do they work? They've always, by design, had greased end bearings and bendix ramps. Classic bronze-on-steel braking or modern steel-steel pushes the lubricant aside with no issues. Shimano Roller Brake hubs also need greased brake surfaces. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#20
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Coaster Brake Failure
On 2/26/19 4:57 PM, AMuzi wrote:
On 2/26/2019 12:09 AM, Tosspot wrote: On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news. We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM]. How do they work? They've always, by design, had greased end bearings and bendix ramps. Classic bronze-on-steel braking or modern steel-steel pushes the lubricant aside with no issues. Shimano Roller Brake hubs also need greased brake surfaces. My world is unraveling :-( |
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