SOHC.co.uk Forums > CB500/550
Cb550 F2 Rear Wheel Bearing Installation
bbrian66:
Ted - the other point that concerns me is whether the central spacer ends up being permanently squeezed between the two bearings and then exerts a permanent sideways load on both bearings. Is that an issue, or can I ignore it?
McCabe-Thiele (Ted):
--- Quote from: bbrian66 on May 18, 2026, 01:37:22 PM ---Ted - the other point that concerns me is whether the central spacer ends up being permanently squeezed between the two bearings and then exerts a permanent sideways load on both bearings. Is that an issue, or can I ignore it?
--- End quote ---
In an ideal world the left side bearing should have been fully against the shoulder, fit lock ring, then right side bearing.
Have you looked down the inside of the inner race and spacer to ensure it looks good and aligned, easy for the spindle to fit?
I can't see squeeze on the spacer causing an issue, it's designed to sit against the inner races and take the torque needed to secure the rear axle bolt.If you don't like the idea then remove the right side bearing or just move it out slightly. I'm guessing that at present the inner race is slightly recessed on the brake drum side,
Personally, I would be more worried about damage to the bearing on removal.
If there is any significant side load it would show straight away as the right ball race would not rotate freely.
Bryanj:
When assembled properly there is no squeeze on the inner races as the outer race on the non locked side floats in the housing.
The thing i hate in engineering terms knocking out a ball bearing by beating on the inner race can damage the race tracks leading to later failure, thats why i dissagree with removing and regreasing, for the cost of bearings if they come out fit new
Oddjob:
Before you do anything confirm the inner spacer in the sprocket side bearing is in place. Part 12 on the parts book pic. It’s essentially a sleeve to enable the spindle fit the sprocket bearing. Otherwise it would rattle a little. It’s easily damaged if you don’t remove the old bearings in the right order. It’s also easily thrown away with the old bearings if you don’t know it’s there. You should be able to spot it by looking at the inner surface of the bearing.
exvalvesetdabbler:
It makes it easier to smear some light oil on the outer surface of the bearing, place it in a poly bag and then into the freezer for a while. Ones that I have done before, I just warmed up the hub with one of those hot air guns that you strip paint with on the mid setting.
You have to make sure that the inner spacer stays aligned otherwise the bearing doesn't seat square onto it effectively making the bearing spacing larger than needed.
Regards
Dave
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version