Im am looking to make a run of the high speed bronze gears, I am in need of a blueprint or deminsions and pitch for the teeth.
would anybody know what the tooth pitch is on a 31 tooth bronze gear is?
Thanks
John
High speed worm gear pitch
-
- Posts: 205
- Joined: December 9th, 2010, 5:21 am
- Model Year: 1928
- Location: Plainview MN
High speed worm gear pitch
"Bear Down, try Hard, and never quit, NEVER"
Tuff Headman
Tuff Headman
-
- Posts: 1442
- Joined: April 24th, 2003, 11:50 am
- Body Type: Mail truck, Stake tr
- Model Year: 1931
- Location: SO CAL
Re: High speed worm gear pitch
Why not get the prints from Ford.
Check out the link. https://www.thehenryford.org/collection ... s-drawings
Bob
Check out the link. https://www.thehenryford.org/collection ... s-drawings
Bob
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: High speed worm gear pitch
I've got one hanging on the back wall of the garage. Will that help. Worm is there also..
KVO
Dec. '28 AA
Dec. '28 AA
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: High speed worm gear pitch
I'll pull some dimensions tomorrow. I'll assume you have no dimensions.KimVanOrder wrote:I've got one hanging on the back wall of the garage. Will that help. Worm is there also..
kvo
KVO
Dec. '28 AA
Dec. '28 AA
- Neil Wilson
- Posts: 3062
- Joined: February 5th, 2003, 9:42 pm
- Body Type: 82-A/89-A
- Model Year: 1930
- Location: Boulder, CO
- Contact:
Re: High speed worm gear pitch
FYI - Engineering drawings are $30 each (my last order was January 2016). The high-speed worm gear was AA-4210 initially. According to the parts data base at http://www.maffi.org/partsresearch/ - There are 4 drawings for this part (i.e. AA-4210 without a suffix). It was changed to AA-4210-B when the low speed was specified. There are 9 drawings for this B suffix (and/or BR) part. A person really needs to go to the Benson Research Center and look at these 13 drawings to determine if any provide the information needed. Otherwise, lots of $'s to buy all.Bob C wrote:Why not get the prints from Ford.
Check out the link. https://www.thehenryford.org/collection ... s-drawings
Bob
Regards, Neil Wilson
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: High speed worm gear pitch
here is what i found,
over all o.d. = 10.475 ( blank size )
OD over the lowest part of the arch of the cut tooth. = 10.185
tooth section width = .600
Dist. from low point on crest to root = .560
Dia. from lowest part of root. = 9.065
helix angle = looks like 45 deg.
ID that fits on the cage = 10.185
31 teeth
Stamped on one side only.
small "ford" in script and a small 1 - at 12:00 location
Large 3 - at 12:15 location
large E - at 10:00 location
small 5 - at 11:00 location
Note: This gear form is cut with a 'hob'. so there is no straight section that can be fly cut.
FYI Good luck.
over all o.d. = 10.475 ( blank size )
OD over the lowest part of the arch of the cut tooth. = 10.185
tooth section width = .600
Dist. from low point on crest to root = .560
Dia. from lowest part of root. = 9.065
helix angle = looks like 45 deg.
ID that fits on the cage = 10.185
31 teeth
Stamped on one side only.
small "ford" in script and a small 1 - at 12:00 location
Large 3 - at 12:15 location
large E - at 10:00 location
small 5 - at 11:00 location
Note: This gear form is cut with a 'hob'. so there is no straight section that can be fly cut.
FYI Good luck.
KVO
Dec. '28 AA
Dec. '28 AA
-
- Posts: 205
- Joined: December 9th, 2010, 5:21 am
- Model Year: 1928
- Location: Plainview MN
Re: High speed worm gear pitch
Thank you kim!
I am looking into finding a hobb, but if i cant come up with anything i do have a TT worm that i am going to cut and harden to make a hobb, i will be making the tool post and everything to build the worm gear so hopefully when it is done i should be able to make as many as needed
I am looking into finding a hobb, but if i cant come up with anything i do have a TT worm that i am going to cut and harden to make a hobb, i will be making the tool post and everything to build the worm gear so hopefully when it is done i should be able to make as many as needed
"Bear Down, try Hard, and never quit, NEVER"
Tuff Headman
Tuff Headman
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: High speed worm gear pitch
Please don't cut up a good worm for this project. Get a hunk of A-2 and make one on a lathe. Save the worm!!!!Ford Truck Nut wrote:Thank you kim!
I am looking into finding a hobb, but if i cant come up with anything i do have a TT worm that i am going to cut and harden to make a hobb, i will be making the tool post and everything to build the worm gear so hopefully when it is done i should be able to make as many as needed
KVO
Dec. '28 AA
Dec. '28 AA