Bearing clearances

Drock3d

New Member
Nov 3, 2018
5
#1
Can I run standard bearings on this rod?
20190104_213816.jpg 20190104_213755.jpg 20190104_213726.jpg 20190104_213816.jpg
 

Bnks334

Corporal
Dec 1, 2016
214
New York
#3
0.025 is better... i tested mine
.025mm is tight. Stock bottom end should be closer to .039mm. This is why BMW uses different color bearings and why a set of builders bearings shouldn't be used without machining the crank for a custom fit.
 

Drock3d

New Member
Nov 3, 2018
5
#4
This is the journal that had the bearing fail, this measurement is right before final polish. Based on this I should be good with non oversized coated bearings
 
Jul 9, 2017
175
#5
.039-.025=.014mm/25.4= .0005"

Id rather be .0005" big than small on this application.
 

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