Wheel Bolt Specs

[Larry767]

I am looking for more information on wheel bolts, the kind with the 90 degree taper under the head for bolting a rim onto a hub. I cannot find these in Machinery's Handbook. I did find one drawing from a supplier on the internet but I need to design the matching chamfer in a machined hub I'm making. Can anyone point me to a resource that would have the general specs on these wheel bolts?

http://www.autobolt.net/downloads/AOL_Wheel_Bolt.pdf

Thanks,

Larry Jorgenson, P.Eng (Mechanical - U of S, 1994)
Prairie Agricultural Machinery Institute (PAMI)
Humboldt, SK Canada

http://www.pami.ca

 

[evelrod]

What your link depicts looks quite similar to the bolts that were used on my 1937 Buick. Should be plenty of info on them.

http://www.arp-bolts.com/Catalog/Catalog.html

http://www.spstech.com/cgi-bin/index.pl

http://yhst-1918367471896.stores.yahoo.net/wheellugbolts.html

http://www.boatersworld.com/product/369560271.htm?utm_medium=productsearch&utm_source=google

http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_326681_326681

Rod

 

[Larry767]

Thanks evelrod but I'm not looking for where to buy them. As I tried to say, I need to design an adapter plate to go from 8 on 6-1/2" to 8 on 8" or 8 on 275 mm. My 8 on 6-1/2 axle has 5/8" diameter studs. For the adapted bolt circle I was going to use these wheel studs. I need to know that appropriate chamfer depth (if there is an appropriate depth) for the 90 deg. chamfer on the hole. Also, if I use 3/4" wheel bolts, what size should the hole in the rim be? 1/16" larger? Or what's the rule of thumb?

Thanks,

Larry

Larry Jorgenson, P.Eng (Mechanical - U of S, 1994)
Prairie Agricultural Machinery Institute (PAMI)
Humboldt, SK Canada

http://www.pami.ca

 

[evelrod]

Larry, if you already have too much invested in the wheels, I'll almost bet money that adapters are commercially available. If I had to start, I'd pick a wheel company or one of the links above and start by asking. Try one of the vintage parts, Buick, Chrysler that used these bolts in the 30's and 40's and see what they are using. Many of these older cars have scaled drawings for nearly all their parts available in collector parts books. No sense in trying to re invent the wheel (excuse the pun).

Lots of alternatives---redrill the wheels? Change the hubs and redrill the drums? I don't know exactly what you are doing, but it sounds to me like whatever you end up with using an adapter as you describe will be considerably weaker than what you have now.

Rod

 

[TVP]

The following link has a number of downloadable wheel bolt drawings:

http://www.forma-tech.com/en/radschrauben/index.htm

 

[Larry767]

TVP,

That is a good link but alas I need Imperial sizes, not metric. Also my hubs have 90 deg. cones whereas as near as I can figure, the metric's are all 60 deg.

Thanks anyway,

Larry

Larry Jorgenson, P.Eng (Mechanical - U of S, 1994)
Prairie Agricultural Machinery Institute (PAMI)
Humboldt, SK Canada

http://www.pami.ca

 

[Metalfixer]

Larry,
Try a shop that deals with forklift parts. I repair forklift wheels and you have to use a rotary table or x,y moves on a mill to place the holes accurately. The holes are usually only .015" oversize.