To my astonishment, the new Heng Long T-72 already comes with bearing holders for the sprockets.
You’ll need 2 x 12x8, I used these : MST120019 Bearing 8x12 (2) ( or any other brand.) They’re about €4.- for two.
Simply take off the Sprocket, push the bearings on the shaft and in the holder. Sprocket back on. Done!
It mìght be necessary to sand the shaft for a little bit, because sometimes there are some burrs on the flat spot that prevents the bearings from sliding on the axles.
By the by : Steel gears. Yay!!
T-72 axle support bearings
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This section is for posting helpful Tips and Tricks only. Questions need to be posted within general questions section viewforum.php?f=14
Re: T-72 axle support bearings
I followed your advice - excellent, thanks! Bought some 8x12 here...
https://www.ebay.co.uk/itm/TOP-QUALITY- ... UH43c-EMvA
https://www.ebay.co.uk/itm/TOP-QUALITY- ... UH43c-EMvA