Good evening everyone.
There is a lot of very useful information online and in print concerning gear cutting (Ivan Law's book being probably the best foundation stone on which to build), but I am having difficulty finding information on sprockets.
Anyone know any pointers, or publications that are likely to be useful? Are there sprocket equivalents or DP/module etc? What should the cutters look like? If a chain is marked 525 or 530, what does this mean?
Thanks.
There's a sprocket calculator here,it might fit your needs.It's a fre
trial,but I bought it,cost about £8.00.It does other things as well.
-- Allan Waterfal
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Take a look at:-
John Stevenson Nottingham, England.
Visit the new Model Engineering adverts page at:-
Preumably the chain pitch. I know nothing about sprocket cutting, but I do have a few sprocket cutters which came with a job lot of gear cutters. Same format as Brown & Sharpe gear cutters, but with markings such as "0.5 Pitch .305 roller 20T & up"
Cheers Tim
Dutton Dry-Dock Traditional & Modern canal craft repairs Vintage diesel engine service
John Stevenson suggested ............
What an interesting website! Thank you John, where do you dig them up?
I note that it is copyright to a W.E.Johns; does this make it the Biggles page?! :(
Mike
I can answer the last bit. Those are motorcycle chain numbers so I presume this is your application. The first digit is the pitch in 8ths of an inch and the last two indicate the inside width between the plates in 80ths of an inch (sprocket width basically). Simple but cunning eh :) So the 500 series motorcycle chains would work like this.
520 - 5/8" pitch - 1/4" width 525 - 5/8" pitch - 5/16" width 530 - 5/8" pitch - 3/8" widthThere are also 400 series motorcycle chains (1/2" pitch) and 600 series (3/4") pitch but the 500 series are the most common. If you want to really knock yourself out on chain information try here.
So now I know the *real* reason why 7/16" chain has disappeared (as used on some Gardner engines & Triumph motorcycles) - it can't be defined under a system which is based on 1/8" steps!
Cheers Tim Dutton Dry-Dock Traditional & Modern canal craft repairs Vintage diesel engine service
Steady on old chap. Surely you mean Captain W E Johns. It doesn't do to forget the rank you know.
Cliff.
Cliff Coggin writes ............
Sorry Sir. Won't let it happen again.
Sorry Sir. Won't let it happen again.
Is that you Ginger ?????? :D
Alla
-- Allan Waterfal
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"Biggles Flies Undone"?
Was that from the Monty Python Papperbok?
yes it was, along with "BIGGLES HOLDS HIS OWN
-- bolma
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