Change gear for Enco, Tida 12 x 36

[Pevehouse]

Hello guys, I hope this finds you all well.
Got a question about my enco 12x36 lathe. This lathe is a Taiwanese lathe from the 80s that was branded as various brands so this may not be specific to Enco. Question is on the back of my lathe there seems to be only one change gear that gets flipped if need be. It came on my machine ready to go however I read somewhere that there may be others that came with my machine but got lost somewhere along the way. Is there other gears or a gear that I’m missing? Grizzly shows one for the G9249 but I’m looking to see if it’s actually my missing gear. Thanks in advance

 

[markba633csi]

What gear(s) do you have now? There are two main versions of the 12" Enco- one has only 3 additional gears and the other has about 8 or 9
110-2033/34 and 110-2075/79 are the two versions- manuals are available online
The 110-2031 seems to be a mystery model- no online manual available AFAIK

Often they used a 120/127 transposition gear which was used for metric- and straight thru the 127 idler for inch
Above and below the large gear would be a pair of 40s for most threads or something like 32 and 40 for a few special inch threads
(per the G9249 manual)

 

[matthewsx]

FWIW, I have a Taiwan made 12x36 and it came with a bunch of gears. However the spur that goes between the spindle and gearbox was in bad shape.

Good news is I was able to 3D print one pretty easy. If you know what the DP and tooth count is it’s simple to make replacements.

John

 

[Pevehouse]

What gear(s) do you have now? There are two main versions of the 12" Enco- one has only 3 additional gears and the other has about 8 or 9
110-2033/34 and 110-2075/79 are the two versions- manuals are available online
The 110-2031 seems to be a mystery model- no online manual available AFAIK

Often they used a 120/127 transposition gear which was used for metric- and straight thru the 127 idler for inch
Above and below the large gear would be a pair of 40s for most threads or something like 32 and 40 for a few special inch threads
(per the G9249 manual)

Well, first let me say thank you for your response and expertise. The lathe I have doesn’t exactly correspond to the model number in the sense that it’s supposed to be a gap bed lathe based on that model number however it’s not. I have solid V ways all the way down the bed. Not sure why this is. According to my thread chart, it’s only showing the one gear that gets flipped. Here’s a few pictures of what I see

 

[Pevehouse]

FWIW, I have a Taiwan made 12x36 and it came with a bunch of gears. However the spur that goes between the spindle and gearbox was in bad shape.

Good news is I was able to 3D print one pretty easy. If you know what the DP and tooth count is it’s simple to make replacements.

John

Hi, Thank you. Good knowing that they can be printed if need be

 

[markba633csi]

Check against this page from G9249: I don't know how much of this applies to yours (post your thread chart) The G9249 spindle gear is 40T
and the leadscrew is 8 tpi- if that matches yours then this should match also
As you can see, you can do a large number of common inch and metric threads with just the two 40T gears. To complete the set you need a 30, 32 and 46T

 

[Pevehouse]

Check against this page from G9249: I don't know how much of this applies to yours (post your thread chart) The G9249 spindle gear is 40T
and the leadscrew is 8 tpi- if that matches yours then this should match also
As you can see, you can do a large number of common inch and metric threads with just the two 40T gears. To complete the set you need a 30, 32 and 46T
View attachment 514081

Hi, sorry for the late reply, been busty with work the last few days and I believe the site was down Sunday.hers a few pictures of my thread charts and gear arrangement. I did not get any loose gears with my machine and if there are any that should be here , I would like to try to purchase them. Sorry, I don’t have a nice prontout like the one you posted so pictures will hopefully do.

 

[Pevehouse]

Check against this page from G9249: I don't know how much of this applies to yours (post your thread chart) The G9249 spindle gear is 40T
and the leadscrew is 8 tpi- if that matches yours then this should match also
As you can see, you can do a large number of common inch and metric threads with just the two 40T gears. To complete the set you need a 30, 32 and 46T
View attachment 514081

You were exactly right. Mine appears to be identical. Therefore I am missing the 30T 32T and the 46T. Grizzly stocks them all at I guess a pretty fair price. I went ahead and ordered them all. Blown away that they actually had them in stock. Thank you for all your help. What are the chances there’s a thread on here just for the owners of these machines?

Appears that there are quite a few out there and they are awesome machines. Would think there would be a thread on here for them. Which I guess if I search I could find just about anything on them. Mine has been upgraded to three phase with a VFD and I just installed a brand new baldor motor on it. I currently have the apron and apron gear box in a million pieces, replacing a few worn parts and doing a deep clean on it. I guess I should post a few pictures of the process for anyone interested or I need of the basic breakdown process. Now I’m just rambling, sorry. Again Thank you so much for your help

 

[markba633csi]

Cool--I do see a discrepancy in metric for cutting 1.8, .9 and .45 mm.
Yours shows a gear combo that Grizzly doesn't: 30 above and 40 below (metric)- Grizzly shows 30 above and 32 below.
Not sure what to make of that, but when you get your gears you can investigate- you can try it both ways

I also see what looks like a misprint on the Grizzly chart- inch, 32 above, 46 below, selector A - 1-3/4 should be 5-3/4 I think
That would make sense because 5.75 is half of 11.5

Are you replacing the apron power feed gear? I hear that one often wears out. I don't own one myself.
Some owners have asked if the Grizzly replacement feed gear fits the Enco and other brands also like Jet

 

[Pevehouse]

I do see a discrepancy in metric for cutting 1.8, .9 and .45 mm.
Yours shows a gear combo that Grizzly doesn't: 30 above and 40 below (metric)- Grizzly shows 30 above and 32 below.
Not sure what to make of that, but when you get your gears you can investigate- you can try it both ways

Will do. Have you had any luck finding the replacement ball oilers for these machines? Took a mic to mine after finding out that a regular 6mm ball oiler will not fit. They measure at 6.6mm at the shank that gets pressed in. Does this mean I would have to drill and ream to an 8 mm to get oilers?