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Tire Carrier Hinge

Discussion in 'The Garage' started by cbbr, Sep 21, 2006.

  1. cbbr

    cbbr 1 ton status GMOTM Winner

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    I am working on a carrier built out of 3/16ths 2" square tube.

    My thought is to sleave a 1 inch grade 8 bolt with DOM. Weld a piece of the DOM into the main bumper and the carrier. Since it won't be opened that often, a lttle grease on the bolt should do.

    Anyone done this?

    Anyone know the shear strength of a 1 inch grde 8?

    Would a grade 5 be better (less brittle)?

    Any drawbacks?
     
  2. shane74

    shane74 1/2 ton status

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    If I am envisioning your setup correctly, it will wobble like a sumb*tch. You'd be better of to get a trailer spindle setup out and use that. You can get them cheap from Northern Tool.
     
  3. cbbr

    cbbr 1 ton status GMOTM Winner

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    I am looking at DOM with an ID of 1.06 and a 1" grade 8. The carrier will also be bolted down on the other side.

    I have read a lot about the spindle setups and the rockstomper hinges, but people have had problems with them breaking.
     
  4. ntsqd

    ntsqd 1/2 ton status

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    That .060" slop is too much. As previously predicted I also predict that it will wobble. Bolting it on the other side will only help that side.

    If you're determined to go in this direction I highly suggest that you buy a pair of flanged bronze bushings with a 1" ID and size the steel tube for them to be a light press fit. Can get them from your local bearing house.
    Nominal Shear strength in steel is roughly 57% of the tensile strength.
     
  5. cbbr

    cbbr 1 ton status GMOTM Winner

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    My other choice is 1.01. If slop is the only downside, that may help some.
     
  6. shane74

    shane74 1/2 ton status

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    IIRC, they use a 1.5" dia. spindle. Go with the 1.75" dia spindle and larger OD dia. bearings. That will help a lot with the wobble and should prevent breakage.
     

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