05-28-2016, 10:32 AM
You made a nice score, especially with all the extras. 
One way to check bearings is to use a stethoscope, but obviously it needs to be running. The real test is checking the surface finish on a ground part. If you end up needing new spindle bearings they will be pricey. Just don't go with the cheaper lower class of bearings as you'll be throwing money away due to an unacceptable the surface finish. Bite the bullet and buy the correct ones if needed. You'd also need a clean room environment for the bearing installment which can be easily made with some clear plastic sheeting and positive air pressure in the "room".
BTW, good advice from Vinny regarding the way oil.
One way to check bearings is to use a stethoscope, but obviously it needs to be running. The real test is checking the surface finish on a ground part. If you end up needing new spindle bearings they will be pricey. Just don't go with the cheaper lower class of bearings as you'll be throwing money away due to an unacceptable the surface finish. Bite the bullet and buy the correct ones if needed. You'd also need a clean room environment for the bearing installment which can be easily made with some clear plastic sheeting and positive air pressure in the "room".
BTW, good advice from Vinny regarding the way oil.