Loose Tensioner Pulley on the Vevor Mini Lathe Collaboration Process to find a solution - Redesign

Loose Tensioner Pulley on the Vevor Mini Lathe Collaboration Process to find a solution - Redesign Reworking the pulley mounting system - Bearing issues - Collaboration Montage with DaveM

@TheMiniMachineShop

My first video starting this process

Amateur video work and amateur hobby machinist. Videos of me working on various projects in the workshop and around the home. Work using my Vevor MX400 Mini Lathe and Precision Matthews PM-25MV Benchtop Milling Machine.

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[mike]

these are all metric so to get it exact, i would recommend going to metric jsut for the pulley project. it may help ya out. :) i love all the hard work you putting into it! i did upgrade all mine to skf and no issues like that wobble ya got.

[franciscoflores]

I think I would have tried using an oilite bushing in the pulley instead of those bearings which seem to be the root of the problem. Mcmaster Carr lists high load oilite bushings in metric sizes.

[waynesmith]

Hi deez, any videos or information will be appreciated to those people who are in the same situation, (typical Chinese poor quality and standards). Dave is the ideal person to help you with your lathe. Not enough people like him out there. Keep up with the learning and videos. 😊

[brianclark]

Hi Deez. I have found a pdf off your MX400 the belt size is 370 mm 2 off the same size belt are used.
From Brian w.germany

[taranson]

Replace the bearings with a quality bearing such as SKF, Timken bearings ABEC 5 or better. Bearings should be interference fit within the idler pulley. You could actually bore out the old pulley to an available size bearing. Convert from c-clip to an E-clip if possible. Don’t buy those Chinese crap c-clips they are made from pot metal not spring metal.

[voodoochild]

If you think that shaft is undersized why not just punch the roll pin out and make a new shaft? Also I sort of agree with previous video commenters, knock out the bearings on the old pulley and bore out the hole to accept larger bearings. Seems a lot easier than making a new pulley. Of course that is just my arm chair opinion. 😉