Screw drive garden tractor

GolfAddict · Feb 15, 2015

Oh man, bummer is right! Hope your plan for beefing it up works...

Rednic79 · Feb 15, 2015

i was looking at these....do you think the 32hp is strong enough? i just worry that the torque at the axle shaft in 1st gear is quite high??? or am i crazy? i would just hate to blow one of these up next....

Xfaxman · Feb 15, 2015

Rednic79 said:
i was looking at these....do you think the 32hp is strong enough? i just worry that the torque at the axle shaft in 1st gear is quite high??? or am i crazy? i would just hate to blow one of these up next....

I don't know, I build things using the TLAR School of Engineering method. (That Looks About Right).

I think that means 32hp on the input shaft. I guess you could call them and ask.

skyhook · Feb 15, 2015

TLAR, lol...I like that.

Fallon · Feb 15, 2015

Xfaxman said:
I don't know, I build things using the TLAR School of Engineering method. (That Looks About Right).

I think that means 32hp on the input shaft. I guess you could call them and ask.

HP = RPM * torque

Torque is what twists & breaks things, so worry about it more than HP. They made the bigger PTO shafts 1000 RPM so they could keep the shaft smaller & lighter while transmitting more HP compared to running them at 540 RPM.

Joe Malovich · Feb 17, 2015

Can you make it a belt drive to your jackshafts? Mating Hydraulic vane/gear motors to the screws directly with a pump on the engine? Rotate your drive system so there are no 90 degree torque transfers? I realize it would involve re-engineering the entire drive. I don't think these are meant to screw across concrete, they are meant to be used in slippery conditions.

Rednic79 · Feb 18, 2015

I was considering rotating the drivetrain, but I think I may go with those gear boxes instead...hydraulic just seems to expensive

slopecarver said:
Can you make it a belt drive to your jackshafts? Mating Hydraulic vane/gear motors to the screws directly with a pump on the engine? Rotate your drive system so there are no 90 degree torque transfers? I realize it would involve re-engineering the entire drive. I don't think these are meant to screw across concrete, they are meant to be used in slippery conditions.