Author Topic: What Kind of Grease  (Read 945 times)

Offline Bob La Londe

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What Kind of Grease
« on: January 03, 2020, 14:40:14 pm »
All of my mills use way oil with automatic oilers.  My little CNC router (moving bridge mill) had no provisions for lubrication at all.  No grease zerks and no oil ports and no place to put one on the bearings.  The little Chinese Noodle (limp like noodle) Router has failed.  Oh, I am sure its repairable, but I would rather spend the time on something a little bigger and a little more rigid.  Wood cutting will still be its primary application, but it might see a little aluminum.  The Noodle router did.  This could mean coolant or atleast mist on the machine occasionally. 

Because its primarily intended for wood I would think saw dust would get into the bearings to easily with oil lubrication.  I seam to recall the big router Lloyd runs in his shop is grease lubricated.  If that is the case I am sure others have grease lubricated machines as well.  In my search for information about lubricating linear rails I found several sources that talk about oil vs grease. 

I'm curious what grease you use, and what your lubrication regimen is. 

Getting started on CNC?  In or passing through my area?
If I have the time I'll be glad to show you a little in my shop. 

Some Stuff I Make with CamBam
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Offline EddyCurrent

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Re: What Kind of Grease
« Reply #1 on: January 03, 2020, 15:04:45 pm »
Made in England

Offline Bob La Londe

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Re: What Kind of Grease
« Reply #2 on: January 03, 2020, 20:25:30 pm »
Thanks.  Looks like a quality EP2 rated grease.  I may look see if I can find a waterproof EP2 grease.
Getting started on CNC?  In or passing through my area?
If I have the time I'll be glad to show you a little in my shop. 

Some Stuff I Make with CamBam
http://www.CNCMOLDS.com

Offline skysurfer

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Re: What Kind of Grease
« Reply #3 on: February 20, 2020, 14:11:44 pm »
A bit late but I use Mobil SHC220 on my big rexroth linear rails (45mm). Also on the ball screws, I learnt the hard way no moly on ball screws.
I keep an eye on the grease film on the rails if there isn't one or I wipe the rails down due to filth I'll give the bearing blocks a squirt (mine have zerks). If I had to put a time on it about every 20 hours.   
Austin
« Last Edit: February 20, 2020, 14:22:37 pm by skysurfer »

Offline lloydsp

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Re: What Kind of Grease
« Reply #4 on: February 20, 2020, 20:33:29 pm »
I agree, Surfer.  Moly is TOO GOOD a grease, with too much lubricity.

It promotes sliding of the balls, instead of rolling.  That promotes scratching of the screws, and uneven wear of the balls in the nuts.

A low-cost lithium grease like what you spec'd, or Sta Lube 3310 is the ticket!

Lloyd
"Pyro for Fun and Profit for More Than Fifty Years"