Oil Cleanliness in Industrial Gearboxes

• May 14, 2002

• #2

mewhg

Mechanical

May 13, 2002

123

Greg,

I used to work for a company that did a lot of work with Falk out of Milwaukee, WI. The Falk standard for the two most common configurations of their gearboxes is as follows:

unfiltered splash lubricated: ISO 23/20/18
filtered with 40 micron wire filters: ISO 20/18/16

You can get a lot of information from the Pall corporation. They make industrial oil filters and are experts in oil contamination. Very helpful people and I'm sure they have a website.

Bill

 

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• Jul 5, 2002

• #3

gunnarhole

Mechanical

Nov 3, 2001

66

Greg,

ISO 4406 provides guidance in charcaterizing the cleanliness of lube oils. It is based upon counting the number of particles in given size ranges (>4 um, >6 um, >14 um) in a one ml sample. This methodology has been adapted for use by some equipment manufacturers.

NAS 1648(National Aerospace Standard)provides similar guidance but uses a single characterization number to describe the particle size count and distribution in a 100 ml sample.

Regards,

Gunnar

 

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• Jul 16, 2002

• #4

icw

Civil/Environmental

Oct 17, 2001

6

Are you still looking for information?? I wrote a paper on this subject for a large Mining Group and will e-mail you a copy of this if you like.

 

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• Jul 17, 2002

• Thread starter
• #5

GregPerry

Mechanical

Jan 7, 2002

44

ICW,

Yes please. Send it to greg.perry@hansen.co.za

Thank you.

 

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• Aug 12, 2002

• #6

mewhg

Mechanical

May 13, 2002

123

ICW,

I would be interested in reading your paper. Thank you.

Bill

w.geissele@pandrolusa.com

 

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• Sep 30, 2002

• #7

ncravi

Mechanical

May 30, 2002

1

icw
can you send me the paper please?
You can mail it to mcravi@rediffmail.com

 

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• Sep 30, 2002

• #8

ferreiro

Mechanical

Jan 6, 2002

43

Hi icw please would you send it to me.
Best Robert
ferreiro@mweb.co.za

 

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• Sep 30, 2002

• #9

icw

Civil/Environmental

Oct 17, 2001

6

'geissele'
Read with interest your comments on FALK giving ISO codes on splash and filtered systems.
Why would one run a splash lubricated box four times dirtier than a filtered box?
I've seen 1500 HP FALK boxes (bearings) fail in two years which is the result of running a box at ISO 23/20/18 and once the oil reaches this level of contamination, no bearing will last....... ask any bearing manufacturer.
I think gearbox manufacturers forget their boxes run on bearings - have no doubt they only consider the gears.
Agree with your comments about PALL Corporation - a good source of information on contamination control.

 

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• Dec 23, 2002

• #10

ferreiro

Mechanical

Jan 6, 2002

43

Hi icw,
please would you send to me the report you did.I had a major computer failure and the people who did the repair thought i had backed up so when they cleanded and installed a new hard drive i lost all.
many thanks
robert
ferreiro@mweb.co.za

 

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• Dec 29, 2002

• #11

bosha

Industrial

Jun 16, 2002

10

icw, If possible I would also like to recieve your paper on oil contamination
Thanks Bob bosha@pa.net

 

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