Author Topic: spindle breakage  (Read 9519 times)

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Offline chavez

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Re: spindle breakage
« Reply #15 on: February 28, 2015, 05:01:07 pm »
They break at the intersection of the shank and the head.  Hence Flipper's Bushing, looks to weld the bolt head to the barrel then slip the bushing on and weld it to the head, at the same time lap welding it to the first weld.  That way there is no stress at the intersect of the bolt head.  I have done the same thing in other applications about the farm.
Travis Callaway

Offline Flipper

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Re: spindle breakage
« Reply #16 on: February 28, 2015, 06:17:27 pm »
Looks nice and strong! If you don't Ming me asking Flipper,  is the bolt welded into barrel, then sleeve slide over and welded again ? Thanks. I also race on some ruff tracks.

Correct sir!....I ground the bolt head slightly at 12 degree angle to mate with the spindle barrel(not shown), the slid the collar over and welded that too...the failure used to be right at the bolt hex head where it meets the shaft...problem solved with the collar. The two 1/2 square "wings" on each side hold a 1" x 3" plate at the bottom, where the steering arm actuator welds to, can be used for a push pull, center pivot or direct steer transfer scenario. I use a 1.25" x .75" bore tube for the spindle barrel and replaceable 3/4" x 1/2" bronze flanged bushings. The way this works is the  1/2" x 20 tie rod ends act as bearings.  I get all my Caster, Camber & Ackerman, These suit my situation very well for,......dare I say Mowercross....maybe not so much for the mower-Go kart racers.

Mark (Trbinrat) is your spindle "go to guy", he makes tons of them as well as front axles.  My situation was different, if it were not for that, I would have his spindles/axles. I am sure Mark can come up with an extreme duty scenario for you guys too.

They break at the intersection of the shank and the head.  Hence Flipper's Bushing, looks to weld the bolt head to the barrel then slip the bushing on and weld it to the head, at the same time lap welding it to the first weld.  That way there is no stress at the intersect of the bolt head.  I have done the same thing in other applications about the farm.

Travis, you are correct. Solves the problem. The bushing is actually 5/8 axle spacers.
Flipper
Maryland Mafia Mower Racing Team (The Sod Father) President
Mason Dixon Lawn Mower Racing Association Chief Technical Director 2016, 2017
Mason Dixon Lawn Mower Racing Association Vice President 2018
2008 BP 1st Place Champion Delmarva LMRA
2008 2nd Place Champion Super Sportsman - Tri State LMRA
2009 Delmarva LMRA Presidents Award
2012 2nd Place Champion Super Sportsman North East National Division ARMA
2013, 2014, 2015 BP 1st Place Champion Mason Dixon LMRA
2013 Mod-XR 1st Place Champion Mason Dixon LMRA
2014, 2015, 2016, Mod-XR-T 1st Place Champion Mason Dixon LMRA & VLMRA
2013, 2014, 2015 IMOW 1st Place Champion Mason Dixon LMRA
2013, 2014, 2015, 2016, 2017  Presidents Award for Excellence Mason
2017 North American ARMA National 1st Place Champion Mod-XR-T Class

Offline Eric (Moose) Mossow

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Re: spindle breakage
« Reply #17 on: February 28, 2015, 06:53:39 pm »
I have been using the ec billet ones http://eccarburetors.com/store/en/precision-mower-accessories/front-axle-kits-parts/spindles.html have only had them bend but I welded axle spacers to them after I straightend them have had no issues sense
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