New spindle idea for my machine - DC 1HP

[Ross77]

Hi Steve

How did you get on with the normal bearings? I was looking at the 61908 (45x68x12) or the 61809 (45x58x7) as I was hoping the balls where smaller, which is better for high speed apparently......I have been looking all over the place and every one seems to recomed A/C bearings but there are a few that have had good results with Deep groove, but all seem to report overheating and short life. have you had any problems and what speeds are you getting?

sorry for so many questions but I dont want to fork out for A/C bearings if I just need to change £10 worth of bearings every 6 months or so......:o)