Grease: Positive Lube System / Flow-through Lube
Grease: Positive Lube System / Flow-through Lube
(OP)
On page 5 is description of Baldor / Reliance's "Positive Lubrication System" for greased bearings which I believe is the same as a flow-through lubrication system:
http:// www.baldor .com/pdf/l iterature/ BR420_0917 08_WEB.pdf
Does anyone have any experience with flow-through greasing lub or this configuration in particular?
I am particularly interested for high D*N applications... 6313 at 3600rpm.
http://
Does anyone have any experience with flow-through greasing lub or this configuration in particular?
I am particularly interested for high D*N applications... 6313 at 3600rpm.
=====================================
Eng-tips forums: The best place on the web for engineering discussions.





RE: Grease: Positive Lube System / Flow-through Lube
Why not an e-mail to Baldor?
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Grease: Positive Lube System / Flow-through Lube
I know Baldor/Reliance has done some research on greasing configuration since I have seen some papers from them.
This is also not the standard Baldor/Reliance configuration... it only comes with the top-of-the-line IEEE841 motors.
This is different than any of our motors in that the grease is directed into/near the bearing, rather than into a cavity.
=====================================
Eng-tips forums: The best place on the web for engineering discussions.
RE: Grease: Positive Lube System / Flow-through Lube
RE: Grease: Positive Lube System / Flow-through Lube
Regardless of exactly what you call it, the fact that temperature is lower would be a good thing for the grease life which imo is a limiting factor for 3600rpm machines with relatively large bearings.
What is it about this arrangement that helps it run cooler?
=====================================
Eng-tips forums: The best place on the web for engineering discussions.
RE: Grease: Positive Lube System / Flow-through Lube
From the 'for what its worth department'; The diagram looked familiar so I asked a couple of the senior techs in the shop and they said that Reliance has been using that particular design for years. I know that other motor manufacturers have used "flow through" arrangements but I don't recall them forcing the grease directly into the ball path.
Thanks
RE: Grease: Positive Lube System / Flow-through Lube
I am not saying that this is a weakness, just that I am often suspicious of why any particular company promotes any particular feature, especially one as settled as grease lubrication.
Grease flows into the bearing and out and after a while the oil separates from the soap and the junk is pushed out by the injection of new grease which starts the process all over again. What's new under the sun?
rmw
RE: Grease: Positive Lube System / Flow-through Lube
rmw - Other motors I have seen inject grease into the large open cavity and this one into a narrow channel directly adjacent to bearing as suggested here. That is new to me.
=====================================
Eng-tips forums: The best place on the web for engineering discussions.