Help! Spindle Bearing Noise
We have a YCM60 w/ AB Bandit 4 controller that gets use nearly every day. The oddest thing happened the other day.
I was writing a tapping program in G-code. (The onboard G84 does nothing but turn on the spindle for about 30 degrees of rotation.) Nonetheless, I wrote the program and after a test run of the program, the spindle started making the strangest noise.
I have never reversed the spindle before, and even at only 500 RPM with zero load it is making noise.
So does anyone have a similar experience? Is this the spindle bearing? Any thoughts? Anyone here change out a spindle bearing on an old YCM60??
I wasn't even in material when it happened, so I am just wondering what the deal is?
Also, does anyone know good feed/speed for roll forming 4-40 in Aluminum?
Star SR20RII/Fanuc 18i, DMG CTX310V4/Fanuc 32i, DMG CTX310ECO/Siemens 8400, Mori NV5000/MAPS, Bridgeport 760/Fanuc 18i, Kiamaster 4NEII60/Fanuc 3t;Partmaker, Gibbscam