Azuza wheel bearing race

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Re: Azuza wheel bearing race

Postby Rynoth » Sun Apr 05, 2020 7:55 pm

Bryan Cotton wrote:Under braking the tire would rotate around the rim and pull the tube with it.


This I could imagine, I guess my point/concern was inflating the tubes to 50PSI despite the 30psi max placard on the wheels themselves. I've always run them at 30PSI and haven't had slippage issues (then again I'm using the stock drum brakes which aren't exactly spectacular when it comes to clamping force.) I suppose I would rather snap off a stem than crack open a wheel.

I'm curious what others think of pumping up the tubes beyond 30psi.
Ryan Roth
N197RR - Waiex #197 (Turbo Aerovee Taildragger)
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Re: Azuza wheel bearing race

Postby WaiexN143NM » Sun Apr 05, 2020 8:09 pm

hi all,
i should add that i have the sonex hyd brakes. from the start. others have had this happen to them and they posted, or ive talked to in person. Dont know if the std cable drum brakes would cause this at 30 psi. maybe someone could post. the higher pressure puts more side load on the tire bead to rim to reduce the chance of slipping, either at initial touchdown or when brakeing
added: just saw you post ryan. i believe the hyd brakes have more grip, and the wheel may be more prone to slip on the tire at 30 psi.
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Last edited by WaiexN143NM on Sun Apr 05, 2020 9:24 pm, edited 1 time in total.
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Re: Azuza wheel bearing race

Postby pfhoeycfi » Sun Apr 05, 2020 8:20 pm

Is 30 psi ok with 5 x 5 tires on the Azusa wheels or is that just an issue with the small tires?
Peter Hoey
SEL Pvt, Comm Glider, CFIG, Pawnee & L19 Towpilot
Philadelphia Glider Council
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Re: Azuza wheel bearing race

Postby WaiexN143NM » Sun Apr 05, 2020 9:31 pm

hi all,
dave amsler posted recently, he has bigger tires installed. he runs 22.5-25
psi has no problems.he posted he is running gp hyd discs. he said hes using the larger 5.00 x 5 tires
i have the std tires that came with the kit, and sonex hyd brakes.
Sound like a good topic for the next ‘zoom’ fly in’ .
in the search box on top type in tire pressure or something similar

be safe out there.

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