The bearings were probably replaces at one time with double shielded bearing. They should've removed the grease fittings.Funny thing is the bearings are sealed an someone put zerks in and the grease just went everywhere but where it needed to be!
:thumbup: The grease is supposed to lubricate the space between the rotor and stator, obviously.No it's not, there is still plenty of room in there.
Our mech maint guys do most pms... Work order says 5 shots weekly.... Lmfao... We got the answer" well, thats how weve always done it!" When we questioned... SmhGalt said:I've seen that many times on dairy farms. It's worse on single phase motors as the start switch and rotating mechanism get gummed up. I always suggest one or two pumps once a year.
Thats why it was replaced... One helluva noise, yet bearings were good!... Noise was electrical in nature.. Could hear it over the pump it was coupled to.JRaef said:Lol, I may use those pictures in a lecture I give periodically on proper motor maintenance. Over greasing is a really common problem, partly because of the general attitude that "if a little is good, a lot must be better". Somewhere I had pictures similar to that where a user installed an automatic greasing system then decided, without consultation, that a tiny squirt 4 times a year was "stupid" and set it to once per day before the first shift. The excess grease eventually picked up a lot of dust and cooked into a nearly solid mass that eventually lead to overloading of the motor. That happened in just a couple of months.