Ryobi DP120 pulleys

[y2knole]

I was gifted a Ryobi DP120 last week.

The motor pulley was removed and replaced with a very small pulley. they also screwed a larger aluminum pulley onto the idler pulley and ran it all with a longer belt so they could seriously underdrive the whole thing for a specific industrial application. It turns seriously slow. Otherwise its a like-new drill press that I'd love to make better use of. These pulleys are discontinued and out of stock and i cant find one anywhere. ive played around with what I have and its usable but im pretty limited to some very low RPM ranges...

Anyone know of a cache of this stuff or anywhere that might have them on the shelf? Or of a suitable replacement?

The part im after is partnumber 13405005A

thanks in advance!

 

[The Cobbler]

looks like the spindle pulley is available on ereplacementparts.com .
the motor & drive pulley appear to be step pulleys.
what are the shaft sizes? you can probably find some universal step pulleys that would work

 

[The Cobbler]

spindle pulley here https://www.ebay.com/itm/Used-4-V-G...468328?hash=item1cc5e90a28:g:Vl8AAOSws99cMCXh

 

[y2knole]

thanks for looking i saw that spindle pulley on ebay.

I just put a caliper on the drive shaft and it reads .55"

so the 1/2 or 5/8" stuff from mcmaster-carr probably wouldnt quite work...
https://www.mcmaster.com/drive-pulleys

 

[y2knole]

also, I said initially 'drive pulley' when i believe i mean 'motor pulley'... the one im missing is the one that mounts on the motor shaft...

 

[The Cobbler]

you want to match the idler pulley as close as possible to the motor pulley .
measure the pulley sizes on the idler and post .

 

[The Cobbler]

that might be a metric shaft on the motor

 

[The Cobbler]

probably 14mm shaft
you may think about replacing both pulleys so they match diameters . matched diameters are important so the belt fits all steps ( same lenght)

 

[The Cobbler]

https://www.ebay.com/itm/RDGTOOLS-4...628192?hash=item5663cdf020:g:HvUAAOSwM8ZZebUn

 

[y2knole]

hm. lemme go disassemble and measure!

Theres a tensioner adjustment so im not AS worried about it matching belt length at all steps... i can loosen or tighten around that within an inch or so margin.

 

[y2knole]

looks like you're right its a 14mm shaft
1 1/4, 1 3/4, 2 1/4, then 2 5/8" for the steps.

 

[The Cobbler]

is this what you need? http://www.mowtownusa.com/Ryobi-Ridgid-Part-13405005A-MOTOR-PULLEY_p_205952.html

 

[y2knole]

is this what you need? http://www.mowtownusa.com/Ryobi-Ridgid-Part-13405005A-MOTOR-PULLEY_p_205952.html

thats exactly it and they are actually local to me!

I called and left them a voice message yesterday.

My guess is they uploaded an entire online parts catalog to their website to dropship, and havent updated it as stuff has been made unavailable... im not too hopeful they actually have it in stock on the shelf but i will try again tomorrow to see if i can reach them to confirm availability.