Joined Mar 2005
514 Posts | 6+
Sunset desert/ Murray River. S.A/Victoria Australi
Ive been thinking it over for a while and its getting to me. :?
The warranty engine (03 650) supplied to me after my initial 8 hr intake rocker fiasco came fitted with LHS roller, RHS ball.
The question is, with that bearing configuration, how do Husaberg expect the crank to stay locked in the correct axial position ??.
Because the ball on the RHS is only a "press " fit on the crank, surely the forces involved are too great to expect a "press" fit reliably hold the crank in the correct position.
Most other bikes I have worked on generally have the inner ball bearing race sandwiched between the primary drive gear and the crank. This securely locks the crank into place axially. My Husaberg however, has the floating inner race of the roller on the primary drive side.
All of the my Husabergs axial location comes down to a press fit ball on the crank- there is nothing to lock this inner race onto its correct position.This means if the press fit is not tight enough, the crank will eventually start to move in the inner race.
This is what happened on my 650, and by inspecting the inner race (or remains of it
) you can see where the crank has spun in the bearing(and not just in final failure stage).
So, is my opinion of this configuration justified ?. Should the Berg really have ball/ball or roller/roller ??, and nothing inbetween ??
I seem to recall another UHE member who experienced the crank spinning in RHS inner race, and the bearing was still rotating fine..................
Opinions please gents
PS before you all say "Press fit is more than ample, you halfwit !!!" think of how many bikes get assembled with a ball/ball combo and a hearty smack with a soft hammer to "centre" it in the cases. They are not that tight , are they.
The warranty engine (03 650) supplied to me after my initial 8 hr intake rocker fiasco came fitted with LHS roller, RHS ball.
The question is, with that bearing configuration, how do Husaberg expect the crank to stay locked in the correct axial position ??.
Because the ball on the RHS is only a "press " fit on the crank, surely the forces involved are too great to expect a "press" fit reliably hold the crank in the correct position.
Most other bikes I have worked on generally have the inner ball bearing race sandwiched between the primary drive gear and the crank. This securely locks the crank into place axially. My Husaberg however, has the floating inner race of the roller on the primary drive side.
All of the my Husabergs axial location comes down to a press fit ball on the crank- there is nothing to lock this inner race onto its correct position.This means if the press fit is not tight enough, the crank will eventually start to move in the inner race.
This is what happened on my 650, and by inspecting the inner race (or remains of it
) you can see where the crank has spun in the bearing(and not just in final failure stage).So, is my opinion of this configuration justified ?. Should the Berg really have ball/ball or roller/roller ??, and nothing inbetween ??
I seem to recall another UHE member who experienced the crank spinning in RHS inner race, and the bearing was still rotating fine..................
Opinions please gents
PS before you all say "Press fit is more than ample, you halfwit !!!" think of how many bikes get assembled with a ball/ball combo and a hearty smack with a soft hammer to "centre" it in the cases. They are not that tight , are they.
