View Full Version : Oil/Grease Nipples/Zerks etc

09-02-2005, 08:30 AM
The type that the gun clicks onto.
I've never quite worked out if your ment to pull the gun off them with a direct pull or sort of twist it off by leaning the gun.
seams sometimes each way takes a lot of effort ......and all this time your worried about trashing the nipple/zerk.
what methods should I use.....when pulling the gun off.
Does anyone else have this trouble or is it me.
all the best...mark

J Tiers
09-02-2005, 09:12 AM
Must be just you..........

Mine always break off cleanly.... right through the top of the threads....... http://bbs.homeshopmachinist.net//biggrin.gif

3 Phase Lightbulb
09-02-2005, 10:19 AM
Have you tried tieing one end of a string around the coupler and the other end of the string to a door knob? Slam the door closed and I'm sure the coupler will pop off easily. I forget where I learned that trick http://bbs.homeshopmachinist.net//smile.gif

J Tiers, It sounds like you're using chain and a toe truck instead of string and a door http://bbs.homeshopmachinist.net//wink.gif

If you don't have a door near by, try a quick firm pluck.

[This message has been edited by 3 Phase Lightbulb (edited 09-02-2005).]

09-02-2005, 11:22 AM
I think the amount of grip can be adjusted by turning the end of the grease gun nozzle...at least of some grease guns....

09-02-2005, 11:22 AM
Sounds as if you still have a lot of pressure in the grease gun when you're trying to pull it off. If you can release the pressure from the gun before attempting to remove from the nipple, you might find it easier going. Do you notice a lot of grease comming from the end of the gun when you release from the zerk?

Mike Burdick
09-02-2005, 03:02 PM
Those grease fittings are all over farm equipment. To release the grease gun tip, I just push it to the side and it comes off easily...kind of a prying motion. As of yet, I have never broken one by this method.

What does wear is the tip on the gun. I usually have to buy a new one every other year - but this is after several thousand uses.

[This message has been edited by Mike Burdick (edited 09-02-2005).]

09-02-2005, 04:35 PM
Thanks guys for your replys.
on this Fritz Werner mill I'm doing up, it has oil nipples that are a tapped-home fit on it.....INTERFERENCE
They are not screwed into threaded holes
These I'm replacing with more tapped-home ones butthis time modern click on..click off ones.
and I'm wondering if I'm going to have trouble ..will the things pull out evertime I detach the gun..
will just have to wait and see.....I could not get hold of the original domed headed nipples .
all the bestr..mark

09-02-2005, 04:39 PM
BTW, Its zert, not zerk.

The tame Wolf !

09-02-2005, 04:44 PM
im only going by what everyone else posts here
there are countless posts ......calling em zerks. http://bbs.homeshopmachinist.net//smile.gif
all the best..mark

Mike Burdick
09-02-2005, 05:02 PM
It has been "Zerk" as long as I can remember. Named after Oscar Zerk.

http://www.machinerylubrication.com/article_detail.asp?articleid=584&relatedb ookgroup=Lubrication (http://www.machinerylubrication.com/article_detail.asp?articleid=584&relatedbookgroup=Lubrication)

Read towards the bottom of the article.


[This message has been edited by Mike Burdick (edited 09-02-2005).]

09-02-2005, 05:20 PM
whatever,not worth argueing over.I learned it differently,And read it as zert fitting somewhere.

The tame Wolf !

09-02-2005, 07:06 PM
<font face="Verdana, Arial" size="2">Originally posted by Mike Burdick:
Those grease fittings are all over farm equipment. To release the grease gun tip, I just push it to the side and it comes off easily...kind of a prying motion. As of yet, I have never broken one by this method.

Mike, that is also the method I use. No probs.

You should never never ever jerk off the zerk http://bbs.homeshopmachinist.net//biggrin.gif; they don`t like it one bit!

[This message has been edited by speedy (edited 09-02-2005).]

J Tiers
09-02-2005, 11:14 PM
Someone is obviously going to get their just de-zerts.


3phase: were you talking about teeth? I have a different method for stripping those......

09-03-2005, 10:04 AM
"Oscar Zerk was a native of Vienna, Austria, who spent much ofhis life in Kenosha. Born in 1878 Zerk became world famous for his numerous inventions. Among the items he invented were spatter-proof nail brushes, quick-freezing ice cube trays, and special brakes for trolley cars. He is best known for the Zerk grease fitting, a lubrication system used on cars, trucks, and planes. At the time of his death in 1968, over 20 billion of these fittings had been manufactured for use around the world. His former home can still be seen on Cooper Road."

BTW, that's Kenosha, Wisconsin, my home town!

09-03-2005, 11:10 AM

09-04-2005, 06:53 PM
There is a difference between oil and grease zerks.

The oil fittings do not have a check ball in the tip. They are meant to be used with an oil gun. The gun looks like a small, squeeze type (one hand) grease gun but the tip of the gun has a radius that corresponds to the radius of the fitting. Only the pressure needed to apply the oil is the person holding the gun firmly to the end of the fitting. I have these fittings on my Sajo horizontal mill.

The grease fittings have a small check ball in the end of the fitting. We have had problems in the past when using a standard grease gun ends on metric fittings. The grease would blow out where the gun attached to the fitting. We have also purchaced new Lincoln grease guns that we could not get off of our older fittings. We had to make small ring spacers to allow the jaws of the gun end to open up allowing the gun end to be twisted off of the fitting.

Hope this helps,

But who was Alamite? And when did he come in? http://bbs.homeshopmachinist.net//smile.gif