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makita 2040/30 slow speed feed sprockets

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Forum topic by brucex posted 01-20-2015 01:51 AM 1556 views 1 time favorited 16 replies Add to Favorites Watch
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brucex

5 posts in 687 days


01-20-2015 01:51 AM

Topic tags/keywords: wood planer makita 2040 feed sprocket

I have a semi-permanent loaner Makita 2040 planer that is in need of the slower feed rate sprockets. Everything I’ve been able to find says they are no longer available as a replacement part- I will gladly be proven wrong. Does anyone know of an alternative source or have a junked parts machine I would be able to purchase a set from. Thanks for the help- I will probably wait on getting new or resurfaced rollers till I can slow this thing down a bit. One odd question/solution path- does anyone know if it would be even worth talking to a machinist to make some custom sprockets- I’m barely a wood guy and don’t have any real idea about how hard a sprocket would be to mill.

Bruce


16 replies so far

View KnightTimeTraveler's profile

KnightTimeTraveler

8 posts in 541 days


#1 posted 06-12-2015 09:37 PM

Bruce, I have the same problem, a Makita 2040 that I want to slow down. Have you found a solution and if so what is it.

-- Knight

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MrUnix

4217 posts in 1661 days


#2 posted 06-12-2015 10:21 PM

Good luck.. I have two 2030s and been looking for a set for years.

As for making up new gears… I’m not 100% sure, but I’ve read comments by others who have installed the set that it also included a different length chain. Might be something else to consider.

Cheers,
Brad

PS: For reference, the slow speed gear set is P/N# 191440-4

-- Brad in FL - To be old and wise, you must first be young and stupid

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brucex

5 posts in 687 days


#3 posted 06-28-2015 03:31 PM

Knight, The only good solution I’ve found is return my loaner and get a different machine, good luck on yours.

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rick1955

258 posts in 893 days


#4 posted 07-06-2015 03:30 AM

Find out what ratio you want from someone who has the slow speed gears. Bring it to a power transmission specialist (belts, pulleys, etc) and they will make it happen. Someone mentioned chains so you are using sprockets and chains which is even easier. You will probably need to bring the machine down so they can get the arbor sizes.

-- Working smarter with less tools is a true crafts person...

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KnightTimeTraveler

8 posts in 541 days


#5 posted 07-07-2015 08:19 PM

Thanks for the responses, I appreciate them! By summer’s end I will find someone that can make the needed sprockets and post my results. I don’t recall where but someplace I ran across this information: The original sprockets are all 15T. The slow speed set has a 10T drive sprocket and 2 18T driven sprockets. I hope that helps.

-- Knight

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rick1955

258 posts in 893 days


#6 posted 07-07-2015 10:43 PM

Why do you need them to be made? Should be able to find sprockets off the shelf. How about a picture of what you have? If I understand correctly it should be easier said than done. Picture so I can verify my thoughts…

Different makita planer but I believe the sprockets are of a similar design. Should be something appropriate off the shelf.
http://youtu.be/zq_Lr_4Z4kY

-- Working smarter with less tools is a true crafts person...

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MrUnix

4217 posts in 1661 days


#7 posted 07-08-2015 04:14 AM

That would be great if you could find some off the shelf… but they aren’t very standard (ie: flat) gears, so it might be a bit of a search. Can’t really tell if the ones for the 2012NB (shown in video) are similar or not.. but here is a picture of the feed roller drive train on a 2030 (the speed reduction set works on both, so they should be pretty much the same). The inset shows what the back of the gears looks like:

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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KnightTimeTraveler

8 posts in 541 days


#8 posted 08-28-2015 03:57 PM

Thanks to everyone for you responses. I appreciate the time you took to help out. The GOOD NEWS is that upon checking with a custom fabricator I was told that the gears I need are an off the shelf item and should be available from McMaster Car. It appears that they have them. I will order what I think are the correct ones and post my results. Here is a link http://www.mcmaster.com/#roller-chain-sprockets/=yoyigl

Thanks again!

Knight

-- Knight

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KnightTimeTraveler

8 posts in 541 days


#9 posted 08-28-2015 03:57 PM



Thanks to everyone for you responses. I appreciate the time you took to help out. The GOOD NEWS is that upon checking with a custom fabricator I was told that the gears I need are an off the shelf item and should be available from McMaster Car. It appears that they have them. I will order what I think are the correct ones and post my results. Here is a link http://www.mcmaster.com/#roller-chain-sprockets/=yoyigl

Thanks again!

Knight

- KnightTimeTraveler


-- Knight

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KnightTimeTraveler

8 posts in 541 days


#10 posted 08-28-2015 04:01 PM

I forgot to mention that the chains links are stamped with RS35. The sprockets need to have the “35” designation.

-- Knight

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KnightTimeTraveler

8 posts in 541 days


#11 posted 10-27-2015 02:43 PM

I’ve spent a LOT of time trying to locate these off the shelf somewhere including sources in Japan (they won’t even respond to my requests). Regardless of what I was told by a custom fabricator, I now believe there are only 2 ways to source the low speed gears. One is to find them on a machine that is being parted out and the other is to have them made. I got a quote to have them made, nearly $200 per sprocket. The other way is to find used ones and I’ve been diligently searching for months with no luck. I might go the Shelix route. Even though this would be nearly twice the cost of custom fabricated sprockets if I can believe what the pundits say it might be worth the expense (no need to slow the feed rate, longer blade live and intervals between sharpening) But all I know about Shelix is what the pundits write. Anybody that has had real life experience with them care to share their thoughts?

-- Knight

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TheFridge

5765 posts in 948 days


#12 posted 10-27-2015 02:58 PM

Maybe different chain sprocket combo?

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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KnightTimeTraveler

8 posts in 541 days


#13 posted 10-27-2015 04:38 PM

That might be worth researching (and I probably will) but I suspect their are 2 or 3 significant obstacles.

1. The sprocket thickness (distance through the hub) on off the shelf sprockets is too deep to fit on the shafts and still get the c-clip in place to hold them on. Maybe it would be practical to have the thickness milled down.

2. Off the shelf sprockets that size have set screws instead of key ways. Maybe the set screws would work, maybe they would slip on the shaft and mess up the groove on the shaft for the key way, maybe someone could broach a metric size groove into the sprocket, a lot of variables here, I don’t know. Also, milling them down as mentioned above makes invades the threads on the the set screw holes.

3. I would be willing to tackle the 2 issues above if I could even find sprockets of the correct bore. Again, it is a metric size that is slightly larger than the 1/2 inch bore on all of the off-the-shelf sprockets of this size that I have found.

I appreciate the suggestion and elaborate on the obstacles hoping for more suggestions / work-arounds. I knew nothing about sprockets when I started this search and although now more knowledgeable, still relatively ignorant. I have learned enough to be slapped upside the head with the old adage “everything is more difficult, takes longer, and cost more”.

-- Knight

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brucex

5 posts in 687 days


#14 posted 10-27-2015 11:03 PM

I just thought I would chime in that I did give up on updating the Makita and found a beautiful 12” Parks that is making me much happier. The original owner might be getting rid of it if anyone is interested…

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KnightTimeTraveler

8 posts in 541 days


#15 posted 08-19-2016 04:11 PM

FINALLY a solution to the slow speed sproket issue. Makita makes and eReplacementParts sells: 221517-2 Sprocket 12 Teeth (Fits Type 1) Part Number: 221517-2 Makita ($7.52). This is for a different Makita product but fit my model 2040 planer PERFECTLY when I replaced the top / drive 15 tooth sprocket with it. Just had to remove 2 links from the chain (might not be necessary but it appeared that the chain tensioner was at its max tension position and the chain still had a little more play in it than with the original 15 tooth sprocket. This 12 tooth sprocket has 20% less teeth on it so should slow down the feed rate by 20%. I think the OEM slow speed sprocket set slows it down by 40% but this should be enough to make the difference I’m looking for. Anyone know how to remove the cutter head? I have a Shelix on the shelf waiting for me to figure out how to install it. Here is a link for the 12 tooth sprocket

-- Knight

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