Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6499807
03/24/19 05:24 PM
03/24/19 05:24 PM
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Joined: Jun 2015
Posts: 4,968 rogers city mi.
jeff karsten
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cant quite understand why that application would have a spiral gear and mid 30's wouldn't be plastic, cast iron ?? also that era parts were used in different products check auto, farm old chain hoists
olden tyred
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Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6499837
03/24/19 06:02 PM
03/24/19 06:02 PM
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Joined: Dec 2006
Posts: 223 S.W. Ontario. Canada
Don
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If you take it to a commercial gear cutting company or even a machine shop they will probably be able to make you a new one. It is a softer material so it goes before the main gear.
"Common sense, is uncommon, anymore"
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Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6499993
03/24/19 08:43 PM
03/24/19 08:43 PM
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Joined: Jun 2007
Posts: 16,150 Tennessee
Scuba1
"color blind Kraut"
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"color blind Kraut"
Joined: Jun 2007
Posts: 16,150
Tennessee
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This is where i get things like that to fabricobble stuff. https://www.mcmaster.com/gears
Let's go Brandon
"Shall not comply" with morons who don't understand "shall not infringe."
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Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6500031
03/24/19 09:08 PM
03/24/19 09:08 PM
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Joined: Aug 2008
Posts: 16,282 ny
upstateNY
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ny
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I suspect it has been replaced with this spiral gear by someone. So maybe I can use a straight toothed gear in its place? I see no reason for that to be a spiral gear in the first place.I think you could have a straight spindal made for not much money.
the wheels of the gods turn very slowly
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Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6501915
03/26/19 05:11 PM
03/26/19 05:11 PM
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Joined: Jun 2007
Posts: 16,150 Tennessee
Scuba1
"color blind Kraut"
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"color blind Kraut"
Joined: Jun 2007
Posts: 16,150
Tennessee
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The teeth on the big gear will be angled. Two reasons for building it like that. With gears cut like that the thing will run quieter then with straight gears and it will be more durable because more material is engaged at any given time.
Let's go Brandon
"Shall not comply" with morons who don't understand "shall not infringe."
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Re: Spindle gear for very old Grinder
[Re: Eagleye]
#6501975
03/26/19 06:43 PM
03/26/19 06:43 PM
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Joined: Jun 2007
Posts: 16,150 Tennessee
Scuba1
"color blind Kraut"
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"color blind Kraut"
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Posts: 16,150
Tennessee
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Does the mechanism convert rotary motion to linear motion? Nope it is just a big reduction transmission to gain torque at low rpm. As I said earlier, the angle in the gearing is done to reduce noise and increase contact points and contact area, allowing to transmit more force without chatter
Last edited by Scuba1; 03/26/19 06:45 PM.
Let's go Brandon
"Shall not comply" with morons who don't understand "shall not infringe."
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Re: Spindle gear for very old Grinder
[Re: kytrapper]
#6502001
03/26/19 07:10 PM
03/26/19 07:10 PM
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Joined: Dec 2006
Posts: 2,884 SE Kentucky
kytrapper
OP
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The big one is in fact angled. I went and looked. I think it’s a helical gear. I’ve sent a couple of emails and the pics to the above mentioned companies. Thanks.
Last edited by kytrapper; 03/26/19 07:35 PM.
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Re: Spindle gear for very old Grinder
[Re: Scuba1]
#6502040
03/26/19 07:52 PM
03/26/19 07:52 PM
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Joined: Dec 2006
Posts: 1,297 Sugar Grove, WV
JTfromWV
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The teeth on the big gear will be angled. Two reasons for building it like that. With gears cut like that the thing will run quieter then with straight gears and it will be more durable because more material is engaged at any given time. Helical cut teeth are definitely quieter but straight cut are stronger. It has to do with deflection angle.
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