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Snowcat Repairs, Parts & Problems Forum Snowcat Repairs, Parts Inquiries, Sources, Problems & Advice |
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#181
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Cidertom
Got time to drill and mount the new sprockets. They are thicker than the old ones. Not enough to be an issue though. But the nylocks barely have enough stud. Going to go through the mounts this weekend and check bearings etc. |
The Following 3 Users Say Thank You to nikos For This Useful Post: | ||
#182
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finally back on
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The Following 3 Users Say Thank You to Cidertom For This Useful Post: | ||
#183
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I have a set of them that thick.
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Jim KF7RiN #185 snow trac 2004 pistenbully canyon |
#184
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So are the thick ones due to copy of copy, or were there thick and thin ones from the factory? My originals said st 52, but so did the new ones.
Would seem to me the thicker the better. If they were steel, I would run a bead of wear material on them. But the bronze is intended to be the wear point from the looks of it. Then again, I doubt with current usage, that it will be my problem again. |
#185
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Found this in Norway
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Jim KF7RiN #185 snow trac 2004 pistenbully canyon |
#186
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This design did away with my biggest concern of the spokes. Have to see how it plays out. The solid disk might trap too much snow / ice though.
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#187
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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 Center to Tooth Center - 3-7/8" minus (3.8708")(14 Teeth/Lug) Tooth Tip Width - 3/4" Space at Base - 2" Tooth Degrees - 90*, 77.1428571*, 51.4285714*, 25.7142857 Mounting Hole Radius - 5-7/8" Mounting Hole Size - 1/2" Inner Hole Diameter - 10-1/4" Inner Hole Radius - 5-1/8" Circle Circumference - 54.19247" Thickness - 1/2" to 1" UHMW depending on model. Sorry it took forever to post finished dimensions. Snow Trac was low on my priority list this year. Took about 3/4 day to router out seven sprockets when I finally got around to it.
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Joe Billy 1964 ST4 #446 |
#188
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I am in need of the two band sprokets. Any being made of available.
Doug |
#189
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I can't afford to continue to R/D the copy of a copy idea. I have started a simple plywood pattern using the data above. When I go back to the foundry it will be with a 2 pc pattern that can be production pressed (molded) reducing my cost. Don't wait on me for sprockets. |
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KickerM (01-12-2018) |
#190
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Weren't there some UHMP being produced.
Doug |
#191
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I have a set of two band sprockets in good condtion if anyone is interested in them. |
#192
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Surfers are a here-now. I think Bombi1 had a pattern to cast the twoband as well, but you would need to contact him directly.
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#193
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Getting ready to try the new UHMW Sprocket. Looks ok, plenty of room left between the track rubber. The Sprocket is allmost twice as thick as the original ones. Hope they work ok...
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The Following 7 Users Say Thank You to nwerring For This Useful Post: | ||
300 H and H (01-16-2018), DAVENET (01-16-2018), nikos (01-16-2018), sno-drifter (01-16-2018), Sno-Surfer (01-16-2018), Snowshadow (01-16-2018), SnowTrac Hunter (01-17-2018) |
#194
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Were all looking forward to this. Thanks for sharing.
Jim
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Jim KF7RiN #185 snow trac 2004 pistenbully canyon |
#195
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Been out for a short test. No problem at all. Almost no wear/contact marks. Should hold up at least as good as the original ones.
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The Following 5 Users Say Thank You to nwerring For This Useful Post: | ||
300 H and H (01-16-2018), Cidertom (01-16-2018), nikos (01-16-2018), OldShopTeacher (02-05-2018), SnowTrac Hunter (01-17-2018) |
#196
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Its amazing how many original spare parts in the ST4 have improved by the ideas of owners, just using various types of equivalent materials. Nikos. |
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