5 pinion billet planetary for the 4472
- Thread starter George Blake
- Start date
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
To all the guys that got in on the planetary, they need a sun gear shaft to work properly, $335 additional for the ones that already paid for the planetary.
To all the guys that got in on the planetary, they need a sun gear shaft to work properly, $335 additional for the ones that already paid for the planetary.
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Foot Performance
Donating Member
Re: 5 pinion billet planetary for the 4472
I still want to be down for my 2 when they get around to them :tup:
And if you wanna just give me the refund for the planetaries and ship my other struff (clust stuff and shaft) that is cool
I still want to be down for my 2 when they get around to them :tup:
And if you wanna just give me the refund for the planetaries and ship my other struff (clust stuff and shaft) that is cool
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
You should be getting your gauge faces any day now and I'll ship your shaft out today.
You should be getting your gauge faces any day now and I'll ship your shaft out today.
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
GOOD NEWS!!!!!
Solution has been found. And I'm gonna share what we've done. No secrets.
Planetary gearset rules are finite. Can't veer.
The rules come from AMGA Standard#6023-A8.
"Design Manual for Epicyclic Gear Drives" ---->fancy name for planetary gearset.
Now. To do the 5 pinions and make them work, and you guys WILL like this.
(Sun gear teeth + Ring gear teeth)/number of pinions MUST equal an INTEGER (or whole number).
ALSO
(Sun gear teeth - Ring gear teeth)/number of pinions MUST equal an INTEGER.
By taking the SUN GEAR SHAFT of the BW4472 to a 35 tooth instead of the stock 38 tooth makes this possible and we can use the stock pinion tooth count of 16. Here's what you guys will like. The teeth are now MUCH larger and they mesh better now than the stock setup was. We've done it, set it up, spun it around, looks b-e-a-utiful. So now the sun gear shaft can carry a higher load as well. It will be made out of 4340, same material the input shafts I did are made out of.
This shaft is MUCH less expensive than in the transfer case input shafts and I WILL be selling these for COST to everyone that got in on the ORIGINAL purchase of the planetaries. The shop is doing a cost analysis and time frame.
This ended up being a good mistake but it's just taken forever.
Once I get word on cost and time frame (the sun gear shaft is much simpler than the input shaft so it's gonna be very inexpensive comparitively), I'll give guys the option to get the sun gear shaft also, or just get their money back.
Again, I apologize but I think you guys are gonna be very happy with the results!!!!
While I was at the shop, 3 guys came in asking about the planetary while we were working with it and asked what it was for. I explained it to them and sure enough, they are doing a BW4472 setup in 3 suburbans and are gonna use this setup now. It looks great. So now the input shaft, sun gear shaft and planetary are all taken care of in the BW4472.
GOOD NEWS!!!!!
Solution has been found. And I'm gonna share what we've done. No secrets.
Planetary gearset rules are finite. Can't veer.
The rules come from AMGA Standard#6023-A8.
"Design Manual for Epicyclic Gear Drives" ---->fancy name for planetary gearset.
Now. To do the 5 pinions and make them work, and you guys WILL like this.
(Sun gear teeth + Ring gear teeth)/number of pinions MUST equal an INTEGER (or whole number).
ALSO
(Sun gear teeth - Ring gear teeth)/number of pinions MUST equal an INTEGER.
By taking the SUN GEAR SHAFT of the BW4472 to a 35 tooth instead of the stock 38 tooth makes this possible and we can use the stock pinion tooth count of 16. Here's what you guys will like. The teeth are now MUCH larger and they mesh better now than the stock setup was. We've done it, set it up, spun it around, looks b-e-a-utiful. So now the sun gear shaft can carry a higher load as well. It will be made out of 4340, same material the input shafts I did are made out of.
This shaft is MUCH less expensive than in the transfer case input shafts and I WILL be selling these for COST to everyone that got in on the ORIGINAL purchase of the planetaries. The shop is doing a cost analysis and time frame.
This ended up being a good mistake but it's just taken forever.
Once I get word on cost and time frame (the sun gear shaft is much simpler than the input shaft so it's gonna be very inexpensive comparitively), I'll give guys the option to get the sun gear shaft also, or just get their money back.
Again, I apologize but I think you guys are gonna be very happy with the results!!!!
While I was at the shop, 3 guys came in asking about the planetary while we were working with it and asked what it was for. I explained it to them and sure enough, they are doing a BW4472 setup in 3 suburbans and are gonna use this setup now. It looks great. So now the input shaft, sun gear shaft and planetary are all taken care of in the BW4472.
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420
Broke Ass Racing
Re: 5 pinion billet planetary for the 4472
"Man... I don't know what the **** you just said, Little Kid, but you're special man, you reached out, and you touch a brother's heart. " - Pumpkin Escobar, Jay and Silent Bob Strike Back
"Man... I don't know what the **** you just said, Little Kid, but you're special man, you reached out, and you touch a brother's heart. " - Pumpkin Escobar, Jay and Silent Bob Strike Back
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
:lol:
The guys at the fire house give me the "WTF you work here for if you can do that?" quite often.
Here's the cost.
$335. No shipping since you guys already paid for the planetary. I'm putting up pictures here in a little bit of the planetaries.
The delivery time is middle of December. Once I came up with a solution for the mess up, they jumped all over it. The owner is VERY appreciative!!
This cleans everything up (numerically).
The original gear ratio with the 4 pinion and 38 tooth stock sun gear shaft was 2.8421052 to 1.
The new gear ratio with the 5 pinion and 35 tooth 4340 sun gear shaft is 3:1.
The more you look at the numbers and the look of these HUGE gears, it makes you scratch your head and think WTF didn't Borg Warner do this? Kevin and I just looked at each other and smiled when we saw it come together.
If anyone else wants to get in, PM me or email me and I'll check availability as he made a few extra to make them worth making.
He's doing these for cost and I'm passing them to you guys for cost.
So if anyone else wants to get in, it's
$1230.85 for sungear shaft AND planetary.
If you do these two contact me and I'll get you special pricing on other items that go along with these two components.
If anyone here wants OUT, let me know so I can open the remaining units up to others wanting to get these.
This was a very cool project and has finally panned out but I won't be doing anything like this again. This was incredibly stressful.
:lol:
The guys at the fire house give me the "WTF you work here for if you can do that?" quite often.
Here's the cost.
$335. No shipping since you guys already paid for the planetary. I'm putting up pictures here in a little bit of the planetaries.
The delivery time is middle of December. Once I came up with a solution for the mess up, they jumped all over it. The owner is VERY appreciative!!
This cleans everything up (numerically).
The original gear ratio with the 4 pinion and 38 tooth stock sun gear shaft was 2.8421052 to 1.
The new gear ratio with the 5 pinion and 35 tooth 4340 sun gear shaft is 3:1.
The more you look at the numbers and the look of these HUGE gears, it makes you scratch your head and think WTF didn't Borg Warner do this? Kevin and I just looked at each other and smiled when we saw it come together.
If anyone else wants to get in, PM me or email me and I'll check availability as he made a few extra to make them worth making.
He's doing these for cost and I'm passing them to you guys for cost.
So if anyone else wants to get in, it's
$1230.85 for sungear shaft AND planetary.
If you do these two contact me and I'll get you special pricing on other items that go along with these two components.
If anyone here wants OUT, let me know so I can open the remaining units up to others wanting to get these.
This was a very cool project and has finally panned out but I won't be doing anything like this again. This was incredibly stressful.
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Syclone Rob
Its all ABOOT the SYTY eh
Re: 5 pinion billet planetary for the 4472
pm sent
pm sent
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
More pics here:
http://www.primegears.net/gallery/BW4472-planetaries
More pics here:
http://www.primegears.net/gallery/BW4472-planetaries
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
This is what it's replacing:
This is the business end of the sun gear shaft that needed to be redesigned:
These teeth look fine until you see the 35 spline setup.
All of this prevents this:
This is what it's replacing:
This is the business end of the sun gear shaft that needed to be redesigned:
These teeth look fine until you see the 35 spline setup.
All of this prevents this:
Foot Performance
Donating Member
Re: 5 pinion billet planetary for the 4472
Shoot me a PM for the price of the 2 sun gears
Shoot me a PM for the price of the 2 sun gears
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
Here's a couple diagrams showing how everything goes together:
Here's a couple diagrams showing how everything goes together:
Foot Performance
Donating Member
Re: 5 pinion billet planetary for the 4472
There was no real fitment issues with the ring gear?
There was no real fitment issues with the ring gear?
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
Nope fit the ring gear like a glove. Big thing is that they all go in together and spin freely. Timing is maintained by following the formula. Planetary engages the ring gear and the sun gear shaft engages the planet WHILE it's in the ring gear. Then it must spin freely with no face rubbing. It's called "spaulling" if the faces of the gear teeth "rub" each other too much. I know it looks VERY different but the important dimensions were maintained and all stress risers were eliminate and joints were eliminated. I just found out today that some "other" place was trying to do this and couldn't figure it out. It's here FIRST.
Nope fit the ring gear like a glove. Big thing is that they all go in together and spin freely. Timing is maintained by following the formula. Planetary engages the ring gear and the sun gear shaft engages the planet WHILE it's in the ring gear. Then it must spin freely with no face rubbing. It's called "spaulling" if the faces of the gear teeth "rub" each other too much. I know it looks VERY different but the important dimensions were maintained and all stress risers were eliminate and joints were eliminated. I just found out today that some "other" place was trying to do this and couldn't figure it out. It's here FIRST.
George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
Guys, I just looked up the price of 4340....
He's doing these for cost. That gear is almost 3" across and you get the 4340 by the inch. Just to do ONE shaft for MATERIAL alone is over $270. Remember, he's machining it AND it has to go to heat treat AND it has to get a finish grind. He's really taking care of us.
There were a few extra made to use up the material. Anyone that wants one, email or PM me and I'll let you know if there is one available for you. Everyone that has already paid for planets are garanteed availability of course. Any left after them will be sold until they are all gone. Again, no more will be made in the future. This is a one time run.
Pretty neat, this is now showing up on google searches.
Guys, I just looked up the price of 4340....
He's doing these for cost. That gear is almost 3" across and you get the 4340 by the inch. Just to do ONE shaft for MATERIAL alone is over $270. Remember, he's machining it AND it has to go to heat treat AND it has to get a finish grind. He's really taking care of us.
There were a few extra made to use up the material. Anyone that wants one, email or PM me and I'll let you know if there is one available for you. Everyone that has already paid for planets are garanteed availability of course. Any left after them will be sold until they are all gone. Again, no more will be made in the future. This is a one time run.
Pretty neat, this is now showing up on google searches.
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George Blake
DONATING MEMBER
Re: 5 pinion billet planetary for the 4472
Does the 0's and 1's say something? I mean, besides 0's and 1's.