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  1. #1
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    SB95 Carbon switch eccentric

    I was chasing down a creak in my SB95 carbon this morning and took the switch eccentric a part. I was surprised to find it would not rotate by hand before I pulled it out. I cleaned everything then lightly greased it and re assembled it. I still will not rotate by hand. any one who has taken one apart is this the way yours is?
    thanks.

  2. #2
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    I have rebuilt mine (last winter) and found that the non-drive side bushing is tight, but that I can *with force* move the eccentric.

    Moving the system with no-shock installed but by way of the rear triangle didn't seem to feel like there was any notable resistance to me, I could not decide if it was more or less than bearings would be.

    I can't decide if I wish Yeti had spec'd that side with bearings also, or the drive-side with a bushing. Tough call. It's not like there's a bunch of rotation there, so why did they use one style on NDS and one style on DS?

  3. #3
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    I had the same with mine in my 66 when I rebuilt it last year. Bearings tight and notchy feeling, but moved easily when I cycled swingarm. I'll rebuild the 95 this Winter.
    Attached Thumbnails Attached Thumbnails SB95 Carbon switch eccentric-photo0776.jpg  

    I'd hit it, but I bruise like a peach.

  4. #4
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    Quote Originally Posted by bear View Post
    I have rebuilt mine (last winter) and found that the non-drive side bushing is tight, but that I can *with force* move the eccentric.

    Moving the system with no-shock installed but by way of the rear triangle didn't seem to feel like there was any notable resistance to me, I could not decide if it was more or less than bearings would be.

    I can't decide if I wish Yeti had spec'd that side with bearings also, or the drive-side with a bushing. Tough call. It's not like there's a bunch of rotation there, so why did they use one style on NDS and one style on DS?
    I was also surprised when I had mine apart and found the bushing / bearing set up.
    From an engineering standpoint the wide tight tolerance bushing has more contact surface area along the cross section and will keep that pivot point tight and ridged , while the bearing on the drive side can withstand the driving power forces loaded into it
    better .

    If my bushing ever had a problem I was going to remove it and machine the left side out and add a Torrington bearing , but after analyzing and finding the wide Torrington bearing that I would need to equal the surface area ( and still could not equal the tight tolerance ) I actually would just make a new bushing and fit it up tight and run it .

    After studying it , thinking I could better it , I was misleading myself and the Yeti design is actually very solid .

  5. #5
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    Man, I don't *even* know what a Torrington bearing is.

    But I'm glad that in the end you like the Yeti design, makes me happier. :^)

  6. #6
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    Quote Originally Posted by kelstr View Post
    I was also surprised when I had mine apart and found the bushing / bearing set up.
    From an engineering standpoint the wide tight tolerance bushing has more contact surface area along the cross section and will keep that pivot point tight and ridged , while the bearing on the drive side can withstand the driving power forces loaded into it
    better .

    If my bushing ever had a problem I was going to remove it and machine the left side out and add a Torrington bearing , but after analyzing and finding the wide Torrington bearing that I would need to equal the surface area ( and still could not equal the tight tolerance ) I actually would just make a new bushing and fit it up tight and run it .

    After studying it , thinking I could better it , I was misleading myself and the Yeti design is actually very solid .
    Yeah, what he said. Mine's badass regardless of whatever engineering mumbo jumbo they used

  7. #7
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    I guess mine is normal. thanks

  8. #8
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    Quote Originally Posted by wilbcol View Post
    I guess mine is normal. thanks
    Yes it is , you just want to keep it really clean and packed with grease so its will slide smoothly with the rear section on it , but you do not want it loose at all .

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