2.2 HP Spindle bearings noise

[matney_models]

I just got ShopBot up and running. Just surface the table.Went to cut air camber for vac hold down. Fire it up, my 2.2 hp spindle is making noise.
I did a 5 min warm up each time.What is going on Please help

[knight_toolworks]

you want to warm it up for 10 minutes. start at 9k and go to 18k

[matney_models]

Just tryed it at 7k and went to 8k.It is fine.
How do I find out what the rps are by k factor x what.

[knight_toolworks]

there is a way to setup the spindle control box to show rpms. but I can't remember the info is. it's somewhere on this site.

[matney_models]

Thanks

[navigator7]

Is warming the spindle with a light bulb or heat lamp the same as warming up the spindle from a cold start?