Akhter sb great video keep it up, We can debate hours on this topic specially when it comes to seamer but long story short, I would like to add some suggestion and observations. Condition of roller is not bad but bearings failed why?? We can clearly see rust on top bearing which indicates lack of adequate lubrication or maybe wrong lubricant, your roller’s top stationary cover seals maybe damaged in that case no matter how efficiently you are doing lubrication water will still go inside. You are inserting bearing with brass cage , instead of that why not using plastic cage? For best and optimum results you can use ceramic ball bearings to increase roller life. Thank you Farhan Shahid.