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Block Chain parts or Repair

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KevinsBikes

Wore out three sets of tires already!
I need to repair this 3/8 width block chain - the master links (if there were ones) are wide and I wonder if those exist for block chain or I will just need to get a few spare links and manually connect them. Looking for some donor links or master links, willing to trade or
Pay. Pic shown against a regular skip chain for size comparison as well.

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Applied industrial technologies sells new authentic looking block chain & master links in various widths. A while back I posted my 1897 Crescent courting bicycle in the Projects threads. Blue Streak posted a very good link to them in it. I purchased 14 ft. of 1/4" & a couple of master links. They look & work great. Good luck w/ it.
 
Rexnord Industries makes 1" pitch block chain in several widths. They do not sell direct but the chain (by the foot) and links can purchased through Applied Industrial Technologies (they have 450 service centers in North America). 2018 prices were $18.60/foot for B-502 (3/16" width) block chain and $23.69/foot for B-503 (1/4” width) block chain. Links are around $4.00 each.

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Rexnord Industries makes 1" pitch block chain in several widths. They do not sell direct but the chain (by the foot) and links can purchased through Applied Industrial Technologies (they have 450 service centers in North America). 2018 prices were $18.60/foot for B-502 (3/16" width) block chain and $23.69/foot for B-503 (1/4” width) block chain. Links are around $4.00 each.

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Thanks so much!


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Sometimes, a block chain's "master link" was just a screw that took the place of the last pin. It had a smooth shank like the other pins, and there were just enough threads to screw through the final side plate and receive a thin lock nut. You might be able to improvise that. You would have to tap a side plate hole
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Sometimes, a block chain's "master link" was just a screw that took the place of the last pin. It had a smooth shank like the other pins, and there were just enough threads to screw through the final side plate and receive a thin lock nut. You might be able to improvise that. You would have to tap a side plate holeView attachment 1157232

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Thanks, I may try this as well. Excited to get this bike back on the road and this is one of the missing links :)
 
My guess is the documents online from the mfg have them - I figured with the easy riding I do on a late 1800's bike, it would be good enough.
Ive checked online and couldnt find the documents. If a 200lb man were to use his full weight on one foot to brake and the bike had a 7" crank mounted to a 10" diameter chainring it would be 280lbf on the chain. The tensile strength may very well be way more than that and intermittent application of such forces may be perfectly okay but it would be nice to know what the tensile rating actually is
 
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