Page 1 of 2

3 different swing arms???

Posted: Fri Mar 04, 2005 4:18 am
by Happyboy
OK, this may not be something new...just something i have noticed for the first time.....

1) we all know the open ended swingarm...weak if you do MX..
2) closed ended swingarms
3) closed ended swingarms with hole behind bearing in pivot?

check out the pics.

Posted: Fri Mar 04, 2005 4:18 am
by Happyboy
normal pivot hole....

Posted: Fri Mar 04, 2005 4:19 am
by Happyboy
thats not corrosion..that is a hole that goes into the swing arm...on both sides...

Posted: Fri Mar 04, 2005 4:25 am
by wistech
Yep both mine have the hole. It eventually trashes the bearing. There is a way around it . Ditch the stock bearing and inner seal and get a double length bearing with internal seals. A 400ex bearing will fit but its not sealed on the ends. You can use the inner race but put the short one to the outside.

Posted: Fri Mar 04, 2005 4:30 am
by Happyboy
wah wah wah?

how do you seal it up?

Posted: Fri Mar 04, 2005 4:45 am
by claas900
..Why does the one on the right look longer??
..Mines an 03 mine has the hole in it,but i only noticed it when i pressed out the out seal sleeve,I thought it got sealed off??..Anyways I used,and sorry for the language but I used Winkys bearing set up,twice as wide very simple to do..It also gets rid of the "dumb" short spacers you have to fit in there between the motor and swingarm. But i havent ran it sents I put it in.

Posted: Fri Mar 04, 2005 5:30 am
by Jaybr
Happy,

You sure that top one doesn't have a sleeve still in it?

There was also a few prototype cast swingarms, Haydug has one of them.

Posted: Fri Mar 04, 2005 6:35 am
by Happyboy
sleeve? There isn't a sleeve underneath the bearing..

Posted: Fri Mar 04, 2005 11:35 am
by Jaybr
QUOTE
Originally posted by Happyboy
sleeve?  There isn't a sleeve underneath the bearing..


Ok, been awhile since I Changed mine.

It sure looks like there is a sleeve in that one from the pics, maybe it's an different setup than stock?

Posted: Fri Mar 04, 2005 12:18 pm
by wistech
QUOTE
Originally posted by Happyboy
wah wah wah?

how do you seal it up?

You can get a 30mm wide roller bearing(stock is 20mm) with a seal integrated into the end.