New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
I'm probably overthinking this but ball bearing classification for Guzzi wheel bearings, C3 quality or should I be looking for tighter tolerances?Brian
The biggest thing to check when replacing wheel bearings is that the bearing spacer isn't too short. Many a wheel bearing has been sacrificed at low mileages because of this from the factory.Ciao
Thanks fellas! C3 seem to be the ones most readily available.Brian
I'm working on the alloy wheels for my Mille GT. I have the numbers 6004 & 6204. The C3 classification refers to internal tolerances of the bearing. C3 seems to be the most common and is greater tolerance than "normal" as mentioned above. I am sure normal tolerance bearings can be sourced from local bearing houses but if it is unnecessary or overkill why bother? I am going with the C3 class bearings.Brian
I ordered 2 sets of NSK bearings, they arrived today. 8 bearings in all, all from India, 4 x 6004 2rs all C3, 4 x 6204 2rs all C1. They will get used. I am somewhat amused at the mix but I think all will be fine. C3 is tighter clearance than C1.Brian
Phil, I think I might be misinterpreting the information I found here. https://www.engineersedge.com/bearing/ball_bearings_tolerances.htmI am also aware that there is more than one system using numbers to classify bearings, it is one of the reasons I asked in the first place. I think for my use these bearings will be "OK" but my knowledge is scant.Brian
This thread interested me in an academic sense, as I realized (for at least the third time today, not counting Kathi pointing out more deficiencies ) how little I know about so many things.
Bill, you should check out my recent thread. Might be helpful:https://wildguzzi.com/forum/index.php?topic=113741.0
If I don't have a socket whose od matches the od of the bearing pretty closely to use as an installation driver, I go to the big box store and find a piece of PVC pipe or a PVC fitting to use as a driver. As long as you don't drive on the inside of the bearing or seal surface you should be OK. For removal I use a standard long punch and reach through the internal spacer cocking it off to one side and drive on the inner race, I never reuse bearings removed in this fashion.Brian
Just be careful you don't gouge the hub; go side to side.kk