Check out this rim/drum setup for the 200T

[Steveo_supremo]

There is a guy selling a rim and drum setup for the MS200T on Ebay eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices. I am interested in this setup, but I don't understand how the oiler gets driven. I sent the seller a message and asked if it includes a special oiler worm gear that somehow mates to the drum. He said no and He has sold lots of these and nobody has ever asked that before. Am I missing something?

 

[Brian13]

Been looking at one of those myself, and had the same question.

 

[JRepairsK70e]

i do seem to remember the spur drive fits into the oiler drive ,so how would a rim sprocket spline fit in oiler drive ???maybe it just mashes in and no one has noticed the mismatch /or had a failure

 

[MS260 Fan]

The spline that the sprocket sits on will slide into the worm won't it? For this you'd need a worm for a 7 tooth 3/8" picco. I think I have an IPL for this if you want it.

 

[MS260 Fan]

This pic isn't very good but I assumed the spline would drive this 7t worm.

 

[MS260 Fan]

I retract my response. There's not enough meat in the plastic worm to hold up to that spline. I thought they had designed the worm to work with either but I don't see it holding up with the rim sprocket.

Does the seller sell auxiliary oilers? There's your answer. Just hook up an oiler from a CS mill on your little nimble limbing saw :msp_smile: Forget about the worm gear.

 

[Steveo_supremo]

maybe it just mashes in and no one has noticed the mismatch /or had a failure

I'm thinking that may be the answer, but if a company is making these sprockets for that specific saw You'd think they would figure out the oiler drive as well.

 

[barneyrb]

Is it just me or could that a generic photo and not actual?

 

[pgg]

no way does that rim sprocket spline match the 200T's stock 3/8 oil worm

 

[JRepairsK70e]

it def doesnt match ,but it might drive the pump till the plastic teeth wear off the pump drive . i m not swaping mine over

 

[pgg]

probably not a big deal

 

[Steveo_supremo]

Here's the reply I got from the seller when I asked him about this:

"I reviewed your question with the service manager that supplies these sprockets and he does understand that those saws do have an oil pump drive, but we also know that these sprockets do not come with that but only have the drum, rim and bearing. He is asking the manufacturer about this issue but for the moment this sprocket comes the way you see it in the listing. We have sold quite a few of those sprockets and have had no complaints but I do not know how they solved the oil pomp drive issue.If they alter this sprocket we will adjust our listing and re-photograph the new sprocket but even if they do it will be some time before those changes show up at our level. Thank you for your interest."

 

[MS260 Fan]

I retract my response. There's not enough meat in the plastic worm to hold up to that spline. I thought they had designed the worm to work with either but I don't see it holding up with the rim sprocket.

probably not a big deal

That's the way I was seeing it. I thought it would look worse than that though. From the pics I wouldn't have thought there was that much engagement. The tips of the spline stick out far enough to make good contact with the worm. Not as much contact surface as the spur but I can see how it could work.

 

[Brian VT]

The Ebay spline has 7 teeth. The red spline overlay shows 8 teeth.
I'm not saying it doesn't work. Just something I noticed.

 

[JRepairsK70e]

VT s paying attention,... good eyes ..wonder if it will still drive the pump ?

 

[MS260 Fan]

The Ebay spline has 7 teeth. The red spline overlay shows 8 teeth.
I'm not saying it doesn't work. Just something I noticed.[/QUOTE

PGG must be running an 8 pin spur. See the pic in post 5. It's a worm made to mate with a 7 pin spur. PGG's example should hold up if you have a spline with 7 teeth paired to a worm meant for a 7t spur.

 

[Steveo_supremo]

Do they even make a 8 pin 3/8 lopro spur? I don't think so. That must be a 1/4" pitch setup PGG is showing us.

 

[MS260 Fan]

Here's what my IPL says...

6t 3/8 low pro
7t 3/8 low pro
7t 0.325
8t 1/4 (not for sale in US)

 

[pgg]

ah yeah what a dummy my pic was a 1/4 pitch worm, maybe the regular 3/8 worm slots to the sprocket better?

 

[galde]

One possibility to adapt that rim/drum to the Pico 7-pin (6-pin) oil pump worm gear would be to slice a section of the spur from a worn-out Pico 7-pin (6-pin) sprocket and silver solder it to the rim. This would also work with the 1/4 pitch Oregon rims as sold by Bailey's. Many carvers prefer the MS200 (rear handle version), but it is not available in 1/4 pitch here in the U.S., and the Pico to 1/4 conversion is to an 8-pin spur only. One other possibility might be to section a 7-pin lo-pro rim as sold by Ahlborn and place it onto the portion of the splined hub that extends beyond the rim. I presume the spline on the Archer rim/drum is the small 7 spline.