Myford tumbler gear.

[rebekah andersonParticipant @rebekahanderson95322]

Hiya,

im looking for an 18tooth tufnol tumbler gear.

I've seen some on eBay but wondered if there are better deals as I need 2 of them.

[rebekah andersonParticipant @rebekahanderson95322]

[JohnFParticipant @johnf59703]

Hi I looked on EBay. and they are less expensive on the Myford site see http://www.myford.co.uk/acatalog/Myford_Gears.html

Looks like the eBay ones are loaded to give free postage !

Regards John

[John Stevenson 1Participant @johnstevenson1]

Those red ones off Ebay are the wrong type of material, you might as well use putty.

Are those 7/16" bore Becky ?

[stan pearson 1Participant @stanpearson1]

Hi Rebekah

John is correct buy the ones from Myford they are cheaper and fit no problems, I have just fitted 2 new ones to my Super7,

Regards

Stan

[Swarf, Mostly!Participant @swarfmostly]

Hi there, Rebekah,

Are you sure you need two-off? The parts list on the Mytholmroyd-Myford web-site specifies one-off 18 tooth, 75/1241 and one-off 20 tooth, 75/1242, (per lathe).

Best regards,

Swarf, Mostly!

[John Stevenson 1Participant @johnstevenson1]

Swarf, Only Becky can answer this one as her lathe is a much modified ML4 and I dare say nothing is standard.

[rebekah andersonParticipant @rebekahanderson95322]

Good question.

i didn't consider there to be a difference. I only kept one. Oh crapola.

guess I'll find out.

Cheers guys

becky

[Swarf, Mostly!Participant @swarfmostly]

Hi there, Rebekah & JS,

Oops!!! My mistake!!!

The part numbers I quoted in my earlier post are for the steel gears that the Tufnol ones replace.

The part numbers Mytholmroyd-Myford quote for the Tufnol gears are:

A1781, (B36, Reference Number 498), 18 teeth, £17.68 + VAT.,

A1782, (B35, Reference Number 499), 20 teeth, £17.68 + VAT.,

All the tumbler reverse set-ups I have encountered use two non-identical gears (idlers).

Regarding your point, John, I guess that can only be resolved by a comparison of the gear centre distances and spindle diameters on the ML4 and ML7.

Best regards,

Swarf, Mostly!

[John McNamaraParticipant @johnmcnamara74883]

My old (Very) change gear Colchester had different size gears…. Is it not to do with allowing them to clear the spindle gear when being rotated?

Regards
John

[Neil WyattModerator @neilwyatt]

> Is it not to do with allowing them to clear the spindle gear when being rotated?

probably, on my mini-lathe the large gear is in permanent mesh and the smaller gear is 'free'.

Neil

[John Stevenson 1Participant @johnstevenson1]

Swarf, Be hard to say what they are because if I remember the thread correctly Beckys machine as posted had been seriously updated so might have a ML4 tumbler on it or a ML7 tumbler on it.

This is Becky's lathe but the tumbler isn't that clear.

With the alloy extension piece it looks more like a pimped up ML4 as opposed to the stubby acorn ML7.

Would be nice to know what bore they are.

[BubbleParticipant @bubble]

Hello all

Tony Griffiths' site has a photo of an ML4 fitted with an ML7 tumbler reverse, including the reverse lever/gear carrier.

Jim

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