Finished a quick bearing swap on my 4" belt linisher. It was bought second hand on Ebay around 6 or so years ago. It was always noisy, the mains wires stuck out of the broken junction box on the back of the motor and for the last couple of years I have needed to wear ear protection to use it.
Couple of days ago an engineer friend of mine came around for some aluminium, to make some spacers and I said what do you think of these bearings and switched it on. He took quick listen, shook the spindle and condemned the bearings. 10 minutes later we had it dismantled. The bearings were open cage and obviously grinding grit and swarf had got into them. Swapped them out for sealed bearings. and within hour the machine was ready for reassembly.
Changed the cable from on/off switch to the motor, fitted gland and newly made cover plate and gasket to the motor.
It runs a lot better and quieter now, Why didn't I do it when I got it, didn't have time and just needed the push to start the job. Next job is to try and make space for nice BCA jig borer.
Colin