Will a Titan HEMTT wheel fit on a Tatra 815?

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Rusty Loads

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Need some help/opinions from the experts: Looking at options for mounting the 1600 20 tires on an older Tatra 815. The stock Tatra tire/ wheel is a 1500 21. Just don't know if there is enough width/ clearance with the Tatra hub and brake assembly. Does anyone know those numbers. Looks like the HEMTT wheel is about 18.5 inches opening up to 19.5 after the join of the 2 sections of the wheel in behind. Talking with one of the members here it looks like the center hole and lug holes can be taken care of by just machining-no welding.
No, truck is not landed....just planning; but thanks for any help.
 

gringeltaube

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.........Looks like the HEMTT wheel is about 18.5 inches opening up to 19.5 after the join of the 2 sections of the wheel in behind...
Sounds like you are forgetting that the valve stem could be the limiting factor in your case...?
I don't have access to tatra parts to find out what fits or does not. But I am attaching a drawing here, showing all critical dimensions. Maybe that helps.

If anyone has those hub & drum assy. dimensions please post up.

G.
 

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Rusty Loads

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Thanks for the responses; I am studying this info. Those crane tires are 400+ lbs are they not? I'm thinking they may be a wee bit heavy.
 
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gringeltaube

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Tatra wheel
Just saw in this Tatra catalog that the newer heavy trucks all come with 16.00R20 mounted on 20x10 wheels.
So I put your image to scale against the HEMTT wheel and it seems there is little or no interference to the valve stem; so it should work... if enlarging the pilot hole and drilling new holes for the larger stud circle is not an issue.

The problem I see is moving tire/ wheel centerline that far out (80mm), eventually causing tire-to-fender interference on the front axles at least, while articulated and steering.

G.
 

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Rusty Loads

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Thanks G for doing that footwork. Yes, aware of the new tire/ wheel size but was not sure if it involved different hubs or a newer style wheel or? There are many variables. Guess the sure fire way of getting it right is to have the truck and a machined wheel and tire ready to bolt on. 80 mm..roughly 3 inches on each side...thats pretty well also max legal width too. Guess those offset numbers have to be considered also.
 

sancobg

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Andy, all I know is that the wheels came off an OSHKOSH and they are not currently mounted on anything

I am writing to you from Chongqing China

Thanks
 

patracy

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Andy, all I know is that the wheels came off an OSHKOSH and they are not currently mounted on anything

I am writing to you from Chongqing China

Thanks
You'd be better served PM'ing Andy directly. Also if you're in China, why do you have NM as your location?
 
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