Steering wheel to shaft taper and keyway dimensions

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Model T Ford Forum: Forum 2017: Steering wheel to shaft taper and keyway dimensions
Top of pagePrevious messageNext messageBottom of page Link to this message  By John Ruth on Thursday, August 24, 2017 - 11:06 am:

Hi - I'm in need of the dimensions for the model T steering shaft where the steering hub fits onto including keyway

I'm making a custom hub for a speedster steering wheel that will screw into the said hub, I don't have a factory wheel to get hub dims from so hoping someone can accurately measure for me

Thxs
John


Top of pagePrevious messageNext messageBottom of page Link to this message  By Don A on Thursday, August 24, 2017 - 12:22 pm:

John,
The bore in a Model T steering wheel spider is not tapered, but does have a keyway. I may have the center portion of a spider (one with broken arms) that you could use for dimensions. I can look for it tonight after work.
Don


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jerry VanOoteghem - SE Michigan on Thursday, August 24, 2017 - 12:53 pm:

Measure the shaft that the hub will fit on and make the hole in the hub approximately .0005/.0010" bigger.

The holes in the original hubs are sometimes difficult to measure because the hub is not just one piece, but a sandwich of several layers, with a hole broached though. Anyway, it makes for a somewhat crude hole. By the way, I speak of the later style wheels, not the early brass ones.


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Ruth on Thursday, August 24, 2017 - 04:28 pm:

Thanks Don - that will be very helpful
John


Top of pagePrevious messageNext messageBottom of page Link to this message  By Don A on Friday, August 25, 2017 - 01:33 pm:

I found the steering wheel spider with broken arms, but I can't remove the stub shaft and steering gear case cover. Anyway, here are your dimensions: shaft size is o.750" (3/4"), the key way is 0.1875" (3/16"). The length is 0.940". I have the top shaft soaking. I'll let you know if I get it apart for you.
Don


Top of pagePrevious messageNext messageBottom of page Link to this message  By Brian Sullivan, Powell WY on Friday, August 25, 2017 - 01:46 pm:

John, I am doing the exact same thing and have the dimensions. Will PM you this weekend


Top of pagePrevious messageNext messageBottom of page Link to this message  By gary hammond-Forest, Va on Saturday, August 26, 2017 - 03:01 pm:

Try this, I used one on a truck build. Worked great.http://www.speedwaymotors.com/Model-T-Keyed-Steering-Shaft-Assembly-3-Inch-Stubshaft,2035.html


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