Good idea; it should work OK.

I can't think of any drawbacks....its just a load of hot air .■

Dear Sganesh,

Install Memolub and it will decrease to below 60`C. Memolub ejects 0.635cc fresh grease 4 times a day (adjustable) on that application enough to maintain the grease in ideal level. Please see attach case studies.

Attachments

case_study_2008_03.chrusher exhaust fan (PDF)

case_study_2008_11. paper_blower (PDF)

case_study_2008_13. steel blower (PDF)

case_study_2008_14. paper blower (PDF)

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Attached file is Memolub Application on Dust Collector in an Aluminum Smelter.

Attachments

dust collector (JPG)

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Attached file are various application of Memolub EX.

Attachments

case study 2005_15. ex-proof in chemical plant (PDF)

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Why bother...80deg C is fine

If you rteally want cooling - best to cool the shaft rather than the housing

Thanks

James ■

I just wonder why the bearings are running that hot? ■

Depends on

Speed - fans are usually faster than the drive motor - smaller fan unit /cheaper.

Loads eg Vee belts have radial load

Grease used and grease fill in the bearing housing

Heat from shaft eg fan impellor that is running in hot gases > heat tracking > can install cooling impellors.

Radiant heat from hot fan casings

Condition of the bearing - installation set up eg clearances too tight etc

Cooling the housing usally makes thing worse - decrease bearing fit/internal clearances - see last item on the list.

Cheers

James ■

Nothing was said about handling hot gases so I assumed (not to be recommended) that the dust extraction system was ambient air.

Our fitters once had to fit up a layshaft driving a large fan. They were used to shafts rotating slowly so filled the housings completely with grease. The heat generated cost us two bearing assemblies and a new shaft ■