Talk:Roller chain/Archives/2013

Motorcycles

I edited the paragraph saying motorcycle chains had been mostly supplanted by cog belts and other systems, because it is simply not true. Although this is true for american motorcycles, most motorcycles in the world still use chains, because of their better performance (in transmitting the power) and in spite of their higher wear. All racing motorcycles use chains, and so do most of the german and japanese ones and almost all chinese and italian ones. 85.28.65.75 07:32, 27 February 2006 (UTC)

Gull chain

French man, Middle (or Meddle) Gull got patent, the practical or usable chain called Gull chain in 1832. Can any one add this fact in the article? I have no more info. Thanks. Namazu-tron (talk) 10:45, 26 May 2009 (UTC)

The only reference I can find to this is here: http://chain-guide.com/breaks/brief-history-of-chain.html Was this a roller chain? --NipponBill (talk) 06:26, 27 May 2009 (UTC)

Thank you for response. The source site of File:The sketch (drawing) of roller chain, Leonardo da Vinci.jpg, http://www.jca333.jp/jp/index02.html in Japanese, from the context, it is understandable it was roller chain, Japanese say "Chain for 伝導". Literally power/energy transmission chain. Can you or any one check the record of French patent obtained for Bicycle chain?Namazu-tron (talk) 23:00, 28 May 2009 (UTC)

Units Needed

The Chain strength section and it's calculations are very helpful, but they lack units. This is somewhat made up for by the following Chain Standards section, but the calculations should have units associated with them.Whizbo (talk) 21:17, 14 October 2009 (UTC)

The table has units associated with it, but they are incorrect. The table should have pounds force and newtons not pounds mass and kg. — Preceding unsigned comment added by Ericnutsch (talk • contribs) 04:45, 10 January 2011 (UTC)

Need sizes for bicycle / motorcycle chains

The ANSI chain size chart is helpful but doesn't include info on motorcycle and bicycle chain sizes:

Bicycle and Motorcycle Chain Dimensions

Chain No. Pitch Roller Diameter Roller Width Sprocket thickness

Bicycle, with Derailleur 1/2" 5/16" 1/8" 0.110"

Bicycle, without Derailleur 1/2" 5/16" 3/32" 0.084"

420 1/2" 5/16" 1/4" 0.227"

425 1/2" 5/16" 5/16" 0.284"

428 1/2" 0.335" 5/16" 0.284"

520 5/8" 0.400" 1/4" 0.227"

525 5/8" 0.400" 5/16" 0.284"

530 5/8" 0.400" 3/8" 0.343"

630 3/4" 15/32" 3/8" 0.343"

This is from: http://www.gizmology.net/sprockets.htm

I don't know how to format charts in wiki. Can someone who is good at doing charts do this? —Preceding unsigned comment added by Nasukaren (talk • contribs) 20:57, 16 April 2010 (UTC)

The "great majority" phrasing is dubious

I put a 'citation needed' after the statement that "The great majority of driving chains operate in clean environments..." because I am not entirely convinced this is true. Many chains operate in relatively dirty conditions, e.g. in agricultural machines, saw chains in chainsaws, harvesters and saw mills, motorcycle chains, and of course bicycle chains. — Preceding unsigned comment added by 94.126.81.100 (talk) 08:13, 8 June 2011 (UTC)

I agree, and rather than leave it as "citation needed", I rephrased that area (the first few paragraphs under the heading "Lubrication") to not make any claims about "population statistics", so to speak (like the idea that factory-equipment chains are known to greatly outnumber bicycle and farm equipment chains). It's not actually necessary to make such claims, because it's enough to just say "many chains are in clean conditions, some in oil baths, and many other chains are in dirty conditions." Thanks for your note. — ¾-10 02:05, 9 June 2011 (UTC)

Usual chains including transmission chains and conveyor chains

In fact, the usual chains we can see in market are transmission chains and conveyor chains. The former is used to transmit power from one end to another end, such as chains used on bicycle; the latter is used to convey something from one end to another end, like chains used on escalator. Chengdu Sino Technology&Industry Co.,Ltd. is professionally supplying high quality chains, and you will see the chains specifications at web: www.sinobearings.com. Or send your demands to sales@sinobearings.com . — Preceding unsigned comment added by 218.88.46.156 (talk) 02:26, 22 August 2012 (UTC)

Chain and sprocket wear

The statement that the larger sprocket wears more rapidly than the smaller differs from my experience of bicycle chains. Consider that the smaller sprocket rotates more than the larger. Therefore, teeth on the smaller sprocket contact the chain more frequently than those on the larger. On each, the chain wraps around arc approx. equal to half the sprocket circumference. Therefore the load is borne by more teeth on the larger sprocket than on those on the smaller. Each tooth on the smaller sprocket bears agreater load and wears more than a tooth on the larger. Can anyone point to an authoritative citation for the contrary assertion in the text? Hedley 11:48, 5 December 2012 (UTC) — Preceding unsigned comment added by Hfinger (talk • contribs)

Stainless Steel Roller Chain

600 AS SERIES AS Series chains are an excellent choice for drives requiring both corrosion resistance and high load capacity. Link plates are made of 304 stainless steel and the round parts are made of hardened 600 series stainless steel. Of all the stainless steel chains offered by ZMIE, AS Series has the highest load capacity. Use where stainless steel is required by FDA regulations.

304 SS SERIES SS Series chains are made completely of 304 stainless steel. SS Series has an excellent resistance to corrosion & temperature extremes. It is generally considered non-magnetic, although some permeability can be found in these chains. This is caused by the cold working of the components during — Preceding unsigned comment added by Winnerong (talk • contribs) 04:08, 17 December 2013 (UTC)