Gearbox Bearings

Yedar · Post by **Yedar** » Sun Sep 11, 2016 11:18 am

Hi all - firstly I am not a mechanic so please bear with me.

Could anyone tell me why the manual specifies an end float value for the gearbox main shaft, this implies that one or both bearings are not a press fit on the shaft, is this correct as the inner bearing race is free to rotate? I find this counter intuitive.

Both bearings on mine are a smooth sliding fit, the end float is .017" and the bearings and shaft show no sign of wear,
I was about to put the thing back together when this question occured. (after spending a hour on my hands & knees retrieving 12 small rollers!)

Thanks in advance.

cknight · Post by **cknight** » Sun Sep 11, 2016 12:49 pm

Did you install the clutch basket and snap ring prior to measuring? This can influence the end float. Regards, Chase

Yedar · Post by **Yedar** » Sun Sep 11, 2016 3:31 pm

Hi Chase- No I have not got that far yet, I measured the axial clearance between a bearing and the shoulder of the shaft, .017" measured at both ends is well inside the standard .0039" & .0295" given in the Honda workshop manual so I am satisfied with that, my question is can the bearings rotate on the shaft if they are not a press fit.
Thank you anyway.

Yedar · Post by **Yedar** » Mon Sep 12, 2016 4:17 am

Pardon my c..p explanation, what I meant to say was what is to prevent the bearing becoming stationary and the shaft using the bearing inner as a bush.

Everyone Gets Old!

honda brian · Post by **honda brian** » Wed Sep 28, 2016 5:21 am

Hi Chester boy, Ex Wirral boy here. I wouldn't be too concerned about it. We are not building aircraft. If you have any concerns, a bit of loctite on the shaft will fix it. Don't allow it to get on the bearing roller surface. My evil twin rabyalan is close to you.PM him for help.
Brian.

honda brian · Post by **honda brian** » Wed Sep 28, 2016 5:22 am

Hi Chester boy, Ex Wirral boy here. I wouldn't be too concerned about it. We are not building aircraft. If you have any concerns, a bit of loctite on the shaft will fix it. Don't allow it to get on the bearing roller surface. My evil twin rabyalan is close to you.PM him for help.
Brian.

LOUD MOUSE · Post by **LOUD MOUSE** » Wed Sep 28, 2016 10:32 am

what is to prevent the bearing becoming stationary and the shaft using the bearing inner as a bush.

The design of the bearing and how these bearing carry the load.
These bearings ride in constant oil which allows the BALLS to move/rotate in the inner/outer races. ...................lm

Yedar wrote:Pardon my c..p explanation, what I meant to say was what is to prevent the bearing becoming stationary and the shaft using the bearing inner as a bush.

Everyone Gets Old!