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Thread: Bearing Carrier Question Part 2...

  1. #1
    Join Date
    Jan 2008
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    Willowbrook, IL
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    Bearing Carrier Question Part 2...

    I've finally decided to start building this "R" of mine and I guess I never thought about how difficult it would be. By difficult, I mean getting old stuff off and new stuff on. Trying to get some of the old stuff off is certainly a pain in the neck. But, I just started, it's my first build of anything having a motor, and I guess it will be much more work than I had anticipated. It's fun though!! Gonna take me awhile since I can only work on it here and there. Anyhow, question for you, I am putting new parts on the swingarm and I had no idea what I was in for. I'm trying to put the new bearings in the swingarm, not the carrier side, not yet. I can't get the new bearings to fit inside the spot where they need to go. I can have it sit right on top of it and that's as far as it goes. I cleaned it up a bit inside the spot where it needs to go since there were some old welds and rust inside there. I'm not sure what I'll need to do. I don't even think that they could be forced (pressed) in there. Would imagine that they would get ruined. But, the parts are specific for the model and year. I know that alot of new parts are a to put in too. Any suggestions?
    Attached Thumbnails Attached Thumbnails RBearing4.jpg   RBearing.jpg   RBearing2.jpg   RBearing3.jpg  
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  2. #2
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
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    2,531
    Quote Originally Posted by R-N-D View Post
    I can't get the new bearings to fit inside the spot where they need to go. I can have it sit right on top of it and that's as far as it goes. I cleaned it up a bit inside the spot where it needs to go since there were some old welds and rust inside there. I'm not sure what I'll need to do. I don't even think that they could be forced (pressed) in there. Any suggestions?
    If they are the proper size bearings, they should press in just fine. Do not try ing them in, as that will definitely destroy them. They need to be drawn in with smooth, constant pressure. I've had good luck using a vise & the appropriate sized sockets to press swingarm needle bearings in & out before. For different types of swingarms, where a vise won't work, I've also used a 1/2" diameter bolt & coupling nut to remove/install the bearings. The coupling nut will spread the stress out along a wider area of the threads, thus preventing stripping of the threads on the bolt & nut. Good luck!
    Red Rider's Sand Machine Updated 07/23/14

  3. #3
    Join Date
    Aug 2010
    Location
    Southern Oregon Coast
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    932
    The old bearing races have to be pressed out and the new ones pressed in.

    head over to the world class help section and d/l the manual if you don't have it

  4. #4
    Join Date
    Sep 2010
    Location
    NEPA
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    7,051
    CAn't see from your pics,,but generally,,where you're at here. The OLD race is still in there. It looks like it is out? Do you know you have it out? The bearing sitting in there looks right. Looks like a little heat on your swingarm and that bearing will drive in. Make sure you find the measuremets for YOUR year bearing,mic it and make sure they're right. Verify the old race is Completely out,and you'll be fine. Steep learning curve,but you will be very proud when you're done!

  5. #5
    KASEY's Avatar
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    ARIZONAS BIGGEST TROUBLEMAKER
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    the bore on the swingarm needs to be clean, as thin as the needle bearing is heat will not work, it will transfer to the needles in a few seconds . a dremel with a 3/4 inch stone is perfect for the clean up, i have a short piece of 5/8 sine thread all thread i use to pull the bearings in, although you can use a vice with a 250r since there is room. just don't on them it will ruin them very quickly

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