View Full Version : Max bearing speed

12-27-2002, 09:25 PM
Does anybody know what the max speed might be for a 6x12 surface grinder.( Currently 3450 This is a sanford surfae grinder and i was thinking about raising the spindle rpm in order to get tha sfpm up useing small grinding wheels for doing slot work. know that i should be using a high speed attachment but i thought i could take advantage of the fact i have a seperate motor Any help thanks Chris

Forrest Addy
12-27-2002, 10:24 PM
5500 surface feet per minute (SFM) is about standard for aluminum oxide grinding wheels. Set your grinder up for this and you won't go wrong.

12-28-2002, 08:13 AM
Yes -- your main worry needs to be the maximum safe speed of the grinding wheel you're using. But assuming you know that.... As a complete WAG I'd guess for maximum spindle speed...no, I'm not going to geuss. I don't know.

[This message has been edited by SGW (edited 12-28-2002).]