Forums Forums - Off Topic Forum FUN





Go Back   Forums Forums - Off Topic Forum FUN > Snow Trac ST4, Kristi, Thiokol/LMC, Tucker, Bombardier & Other Snowcat Discussions > Snowcat Repairs, Parts & Problems Forum

Snowcat Repairs, Parts & Problems Forum Snowcat Repairs, Parts Inquiries, Sources, Problems & Advice

Reply
 
Thread Tools Display Modes
  #21  
Old 07-02-2017, 11:53 PM
zspryte zspryte is offline
Member
 
Join Date: Dec 2006
Location: Tamarack, CA
Posts: 80
Thanks: 6
Thanked 16 Times in 15 Posts
zspryte is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Metal 3D printing has come along way and still has a long way to go. Current problems range from porosity to high residual stresses to poor micro structure. These issues make 3D printed parts unacceptable for many applications today. The field is advancing quickly so maybe sooner than later snow trac sprockets will be printed.
Reply With Quote
The Following User Says Thank You to zspryte For This Useful Post:
nikos (07-03-2017)
  #22  
Old 07-03-2017, 10:32 AM
Cidertom's Avatar
Cidertom Cidertom is online now
Bronze Member
 
Join Date: Jan 2013
Location: Benton County, Oregon, USA
Posts: 546
Thanks: 112
Thanked 320 Times in 150 Posts
Cidertom is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Direct 3D printing of high stress parts has a long way to go. But for doing prototyping and such for castings, wow. The ability to print a reasonably firm model of the item for size checking, then print it again, scaled up for the shrinkage, with a wax, for casting makes it wonderful for the one (or few) casting projects.
Reply With Quote
  #23  
Old 07-03-2017, 08:55 PM
danoneal's Avatar
danoneal danoneal is offline
Junior Member
 
Join Date: Nov 2013
Location: Leavenworth, WA.
Posts: 16
Thanks: 5
Thanked 1 Time in 1 Post
danoneal is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

OK I'm still on the hunt. Does anyone have the original metric chain specs? This will match the original small drive sprocket then I can find a matching metric sprocket plates. Hopefully then I can find a mechinist who can weld cast hub to steel sprocket plates.
Thanks everyone.
__________________
Snow Shoe
1965 Snow Trac #708
Reply With Quote
  #24  
Old 07-04-2017, 12:53 AM
JimVT's Avatar
JimVT JimVT is offline
Bronze Member
 
Join Date: Oct 2005
Location: Enumclaw WA.
Posts: 3,107
Thanks: 3
Thanked 750 Times in 409 Posts
JimVT is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

I put this on mine last summer I think you may be able to look it up
CHAIN-16BRB-HIT
BRITISH STANDARD INSPIRE 16B sch-04/11/16
__________________
Jim KF7RiN
#185 snow trac
2004 pistenbully canyon
Reply With Quote
The Following 2 Users Say Thank You to JimVT For This Useful Post:
nikos (07-04-2017), Pontoon Princess (07-04-2017)
  #25  
Old 07-04-2017, 02:23 AM
nikos's Avatar
nikos nikos is offline
Bronze Member
 
Join Date: Aug 2006
Location: Florina West Macedonia - Hellas - Greece
Posts: 664
Thanks: 835
Thanked 412 Times in 189 Posts
nikos is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Quote:
Originally Posted by JimVT View Post
I put this on mine last summer I think you may be able to look it up
CHAIN-16BRB-HIT
BRITISH STANDARD INSPIRE 16B sch-04/11/16

http://www.royalsupply.com/store/pc/...Chain-c919.htm

Nikos
Reply With Quote
  #26  
Old 07-04-2017, 10:31 AM
danoneal's Avatar
danoneal danoneal is offline
Junior Member
 
Join Date: Nov 2013
Location: Leavenworth, WA.
Posts: 16
Thanks: 5
Thanked 1 Time in 1 Post
danoneal is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Thanks,
Do you know the difference in the HIT-16B-2RB and a 16B Metric Roller Chain (British Standard)? Other than the $380.00 price difference.
__________________
Snow Shoe
1965 Snow Trac #708
Reply With Quote
  #27  
Old 07-05-2017, 01:20 PM
redsqwrl's Avatar
redsqwrl redsqwrl is offline
Bronze Member
 
Join Date: Feb 2011
Location: E central WI
Posts: 1,534
Thanks: 287
Thanked 547 Times in 275 Posts
redsqwrl is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Just to recap this thread, dan oneal needs large sprockets.
I assume they are 36 tooth. for the ST-4.

Dan I would be willing to bet I can get a 36 tooth or a 42 tooth large sprocket.

I am sure that they are available metric or standard.

I am not sure the spline I had reproduced for the output of the trans axle is the same as the large sprockets inner. ( I am guessing from memory they are not)

If it is the same, I would be happy to have large machined sprockets created for you. as I need one as well.
Mike
Reply With Quote
  #28  
Old 07-06-2017, 10:29 AM
danoneal's Avatar
danoneal danoneal is offline
Junior Member
 
Join Date: Nov 2013
Location: Leavenworth, WA.
Posts: 16
Thanks: 5
Thanked 1 Time in 1 Post
danoneal is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Mike,
That is correct 36 tooth I'm not sure if the splines are the same I have not remoced the trans axle sprocket. I do want to keep the metric chain and sprocket as my trans axle sprockets look good and don't want to replace them if I don't have to. You don't know the difference in chain between HIT-16B-2RB and a 16B Metric Roller Chain (British Standard) do you. And yes I have not found a machinist to work with.
Dan
__________________
Snow Shoe
1965 Snow Trac #708
Reply With Quote
  #29  
Old 07-12-2017, 09:21 AM
redsqwrl's Avatar
redsqwrl redsqwrl is offline
Bronze Member
 
Join Date: Feb 2011
Location: E central WI
Posts: 1,534
Thanks: 287
Thanked 547 Times in 275 Posts
redsqwrl is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Hit 16 B 2 RB is unknown to me. I searched it appears from the random targeted google search it is a Hitachi 16B chain. (given the 16 designation I would be tempted to think it is metric)
what I do know is the ansi 80 chain is .625 wide rollers.
and 16B has .670 wide rollers.

It appears that when folks changed out their chains on their snow tracs they installed the narrower chain and it attacked the cast sprockets. I suppose they figured the lube would make it all good and never looked back.
(previous 50 year lives of these machines will always be a mystery)

I will be examining some of this in july at the summer workshop. Of the three snow tracs getting serviced there are chain and sprocket issues on two of them. the extent will be *discovered* then.
Issues:
One has the chains removed
one is getting overdrive installed
one is completely unknown as the hood is stuck down, and I will let the owner pull harder on it. ;-)))))

Mike
Reply With Quote
  #30  
Old 07-12-2017, 10:07 AM
JimVT's Avatar
JimVT JimVT is offline
Bronze Member
 
Join Date: Oct 2005
Location: Enumclaw WA.
Posts: 3,107
Thanks: 3
Thanked 750 Times in 409 Posts
JimVT is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Quote:
Originally Posted by redsqwrl View Post
Hit 16 B 2 RB is unknown to me. I searched it appears from the random targeted google search it is a Hitachi 16B chain. (given the 16 designation I would be tempted to think it is metric)
what I do know is the ansi 80 chain is .625 wide rollers.
and 16B has .670 wide rollers.

It appears that when folks changed out their chains on their snow tracs they installed the narrower chain and it attacked the cast sprockets. I suppose they figured the lube would make it all good and never looked back.
(previous 50 year lives of these machines will always be a mystery)

I will be examining some of this in july at the summer workshop. Of the three snow tracs getting serviced there are chain and sprocket issues on two of them. the extent will be *discovered* then.
Issues:
One has the chains removed
one is getting overdrive installed
one is completely unknown as the hood is stuck down, and I will let the owner pull harder on it. ;-)))))

Mike
yes it is metric . I put the correct one back on . my sprockets are still in good shape.
__________________
Jim KF7RiN
#185 snow trac
2004 pistenbully canyon
Reply With Quote
  #31  
Old 07-14-2017, 11:45 PM
danoneal's Avatar
danoneal danoneal is offline
Junior Member
 
Join Date: Nov 2013
Location: Leavenworth, WA.
Posts: 16
Thanks: 5
Thanked 1 Time in 1 Post
danoneal is on a distinguished road
Default Re: Looking for Snow Trac Chain Drive sprockets ST34

Does anyone know the difference in chain between HIT-16B-2RB and a 16B Metric Roller Chain (British Standard).

Mike, might you be interested in doing some machine work for me? Machine my existing spline (or new spline if I can find the right spline) to a new metric sprocket times 2.
Dan
__________________
Snow Shoe
1965 Snow Trac #708
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Snowtrac Drive Sprockets on CAD oilline Snowcat Repairs, Parts & Problems Forum 24 03-28-2017 09:41 PM
Bombardier 252 drive sprockets DDR Snowcat Repairs, Parts & Problems Forum 2 12-19-2016 09:28 PM
Wanted ST4B front chain sprockets chamlin1 Snowcat Repairs, Parts & Problems Forum 11 02-18-2014 01:30 AM
snow trac drive chain tension John Lumley Snowcat Repairs, Parts & Problems Forum 3 01-17-2010 09:28 PM
601 drive sprockets darryl Snowcat Restoration & Modification Projects Forum 3 10-17-2007 05:56 PM







All times are GMT -4. The time now is 11:51 PM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2002 - 2017 www.ForumsForums.com