The hub, the bearings and shaft are new, the blade is also straight. I guess the wobbling comes from bearings, because there's minimal loose between the bearing races. I tried different bearing and still nothing. Does anyone have the same problem?
Check that the problem is not from the way the blade is mounted on the shaft
any thing between the blade and the backing hub of the shaft will make the blade wobble so check for burrs , bad fitting parts or the like at the blade center
new bearings , shaft and hub are new but is the hub on the shaft straight
Testimonial: "Hi, all parts are new and clean, shaft also new, the wobbling comes from bearing races. There's minimal loose between the races on the bearing ball. When you attached 12" then you can really feel it."
ball bearing units will have a slight clearance as it is necessary for lubrication and expansion during installation of the bearing on the shaft
check that the bearings are ball bearings and not supposed to be thrust ball bearings as these can be adjusted by shims on the spacer to eliminate any axial/tangential movement to keep the blade running true
was the problem evident before the repair or only after the repair. if you still have the old bearings are the numbers etched on the sides the same as the new bearings
regardless of the manufacturer, the numbers should be the same as that is the code for the bearing dimensions so that any bearing matching that number can be fitted from any manufacturer
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