Can gears be bought cheaply or as continuous bar?

Can gears be bought cheaply or as continuous bar?

This topic has 7 replies, 7 voices, and was last updated 28 August 2015 at 18:27 by JasonB.

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28 August 2015 at 13:40 #202289
Russ B
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@russb
Does anyone know if gears can be bought cheaply or perhaps as a continuous bar – a bit like you can with T5 toothed pulleys as per below?

I have a project where I need 4 gears (3 the same and roughly 25-45mm pcd, one perhaps 2.5 to 5 times larger), I will use my lathe change wheels if I have too but I hoped a better cheaper solution might exist.

Thanks in advance to anyone who could offer assistance, I know I don't offer much (any!?) useful advice on the forum and its because I'm not that useful or experienced. To give a little back I would happily share my project plans with the forum once I've drawn them up as I think some of you might like it.
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28 August 2015 at 13:40 #24068
Russ B
Participant
@russb
28 August 2015 at 13:54 #202291
michael howarth 1
Participant
@michaelhowarth1
HPC Gears list toothed bar stock.

Mick
28 August 2015 at 15:32 #202300
John Stevenson 1
Participant
@johnstevenson1
but you can't afford it.
28 August 2015 at 17:34 #202320
Bazyle
Participant
@bazyle
You are not going to find regular gears much cheaper than change wheels on ebay and they can sometimes be rather optimistically priced. Otherwise random gears from a random bit of scrapped machinery would be the only low cost source. That might be viable if you found a suitable one in a machine that was both common and commonly scrapped – eg a motorbike gearbox.
28 August 2015 at 18:04 #202323
Robert Dodds
Participant
@robertdodds43397
Russ,

You don't give much info regarding the use or loading on your gears but HPC do sell moulded plastic gears for £3 to £5 each and 75mm diameter will come for £12 so if your tooth loading is appropriate you could do worse than look at some ready made plastic gears.

Bob D
28 August 2015 at 18:06 #202325
Keith Long
Participant
@keithlong89920
Russ – when Chester Tools have been at the shows they've had a box of gears for you to sort through at cheap prices. Might be worth giving them a ring and see if they've got anything suitable. Otherwise Technobots (satisfied customer) do a range of steel 1.5 and 2 mod gears at reasonable prices – cheaper than most of the change wheels on EBay.
28 August 2015 at 18:27 #202330
JasonB
Moderator
@jasonb
Pinion stock or pinion wire is what the lengths are called but if you only want 3 gears it would be more cost effective to just buy 3 gears unless you want very wide ones. Or just machine up a length and part them off.
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