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Nip Impressions´┐Ż is Paperitalo Publications' flagship publication.  Published every Thursday afternoon (US Eastern Time), Nip Impressions´┐Ż is eagerly read by pulp and paper professionals around the world.

17 Sept 14: Applications in Use, IV--Planetary Gear Boxes


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Let's review the primary reasons we originally proposed using planetary gear boxes:


1. They can be shaft or frame mounted, easing alignment problems.

2. They eliminate a heavy concrete base and mounting plate.

3. Their use de-congests the back side of paper machines, from wet end through the reel.

4. #3 means the building could possibly be a few feet (up to a meter?) narrower, resulting in huge building and crane costs in new construction.


The steel manufacturing industry has used planetary gearboxes for years in applications as severe and as demanding as those in pulp and paper.  We are once again bound by tradition it appears.


Here are some resources concerning planetary gear boxes.  We present these without compensation from any of the organizations represented.  If you have comments on these or others to add, please let us know.

A nice primer on planetary gear boxes.


Timken Bearings for Planetary Gear Boxes.




PMP Industries


Rexroth (Bosch Group)



Comments? Please send an email to [email protected]
with "LGMI Frontiers" in the subject line.   



LGMI Design Practices
As always, your comments will be appreciated.
Think light!


Brian Brogdon, Ph.D.
Executive Director




Jim Thompson

Send us your comments by emailing Brian Brogdon
or Jim Thompson!




LGMI Weekly Ideas are presented for your consideration and inspiration only.  It is solely your responsibility to check for engineering correctness, applicability, standards, insurance policy and local, national or any other legal compliance required before implementing.  Neither The Light Green Machine (TM) Institute, Paperitalo Publications, Talo Analytic International, Inc., nor any individual associated with these entities accepts any responsibility for your application or compliance issues.

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