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

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  #21  
Old 03-15-2017, 01:21 AM
schmidt schmidt is offline
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Default Re: Snowtrac Drive Sprockets on CAD

Hi Steve,

I would be interested in what I believe is the older style. See photo on this post for Mountain Home Lodge. I may know of someone else who maybe interested too, not sure on the type at this time, but that can easily be confirmed. Can anyone comment on comparing composite to the original brass? Quieter, longevity, wear issues, etc. Thanks, Brad Mountain Home Lodge
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Old 03-15-2017, 08:52 AM
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Default Re: Snowtrac Drive Sprockets on CAD

some really tuff material is available now . if you went with that you may have good success. I only seen one in use and it was worn bad .I have no idea what was used to make it.
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  #23  
Old 03-18-2017, 10:26 PM
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Default Re: Snowtrac Drive Sprockets on CAD

Look here: http://www.forumsforums.com/3_9/show...&postcount=123
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  #24  
Old 03-28-2017, 09:40 PM
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Default Re: Snowtrac Drive Sprockets on CAD

Someone had posted dimensions previously for sprockets. Neils sent me an STP file which I could open with Wedge, but without having a compatible version of AutoCAD I couldn't dimension.
The dimensions that were posted in another thread were incorrect, so I am trying to correct per layout.

Outer Tooth Diameter - 17-1/4" (17.25")
Outer Tooth Radius - 8-5/8" (8.625")

Base Diameter - 15-3/8" (15.375")
Base Radius - 7-11/16" (7.6875")

Tooth Degrees - 90*, 77.1428571*, 51.4285714*, 25.7142857

Circle Circumference - 54.19247"
Tooth Center to Tooth Center - 3-7/8" minus (3.8708")
Tooth Tip Width - 1" (Need to Verify)
Space at Base - 1-1/2" (Need to Verify)

Thickness - 1/2" to 1" UHMW depending on model.

Hope this is helpful. I have an older two band model. I would like to start out with 1/2" and see if it is durable enough before I modify my sprocket to fit thicker UHMW. Prices of UHMW vary depending on location. I purchased a piece of 18" x 10' for $350 in Anchorage, Alaska. You may be able to find cheaper in the Lower 48.

Thanks,
Joe
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  #25  
Old 03-28-2017, 09:41 PM
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Default Re: Snowtrac Drive Sprockets on CAD

14 Tooth Sprocket
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