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Thread: trailer jack post thrust bearings?

  1. #1
    Join Date
    Feb 2003
    Posts
    1,106

    Default trailer jack post thrust bearings?

    my trailer jack started making odd noises and was getting harder to turn.

    i pulled it apart and found numerous BB sized ball bearings in it and what appears to be a failed race. i know that i have likely exceeded the 3000# static and 2000# lift limits since frequently i am jacking up the front of the trailer (& back of the truck) to get a better angle when off loading the car.

    any one else fail these? any better, more heavy duty bearings out there like taper roller bearings?

    i think i had something relatively simple like this based on the autopsy of the stuff i found (not right size just for example purposes).

    http://cgi.ebay.com/51103-Thrust-Bea...d=p3286.c0.m14
    1985 CRX Si competed in Solo II: AS, CS, DS, GS
    1986 CRX Si competed in: SCCA Solo II CSP, SCCA ITA, SCCA ITB, NASA H5
    1988 CRX Si competed in ITA & STL

  2. #2
    Join Date
    Mar 2002
    Location
    Black Rock, Ct
    Posts
    9,594

    Default

    The one welded on my trailer crapped out. I got a cool bolt on swing away version with a wheel. That one didn't do so well when somebody decided to move my truck, while it was in the 'jacked" position to load my car. Folded in half. Needing one NOW, I stopped in at a marine store, and got the mother of all jacks, and bolted it on. It was pretty cheap actually, and it's nice to know that even driving away with it down won't hurt it!

    Point being, I think thay all act up/fail and they are pretty cheap, so overdoing it is an option.
    Jake Gulick


    CarriageHouse Motorsports
    for sale: 2003 Audi A4 Quattro, clean, serviced, dark green, auto, sunroof, tan leather with 75K miles.
    IT-7 #57 RX-7 race car
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    New England Region
    lateapex911(at)gmail(dot)com


  3. #3
    Join Date
    Feb 2003
    Posts
    1,106

    Default

    update;

    new bearing from local supply shop was $13.20 with company discount

    Make: INA
    Model: D1

    ID: 0.500"
    OD: 1.219"
    Height: 0.563"

    Capacity: Dynamic = 3850 #'s; Static = 5600 #'s

    works great. had to modify (waller out) the hole in the handle because the bearing was taller (balls about twice the size of the old one) so the hole in the post did not have the clearance it did have. "fixing" the handle was easier..
    1985 CRX Si competed in Solo II: AS, CS, DS, GS
    1986 CRX Si competed in: SCCA Solo II CSP, SCCA ITA, SCCA ITB, NASA H5
    1988 CRX Si competed in ITA & STL

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