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What is the name of the old flat grease zerk?
What is the name of the old flat grease zerk?
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17 years 4 months ago #5152
by Scott Kuehn
Maybe a dumb question, but I can't find anyone who knows what the old flat style grase zerks were called. Maybe once I know what they are called, I can ask for them by name.
Scott
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17 years 4 months ago #5154
by Scott Kuehn
The one in question is about 3/4" around and is flat on top with a lip around the whole thing about 1/8" below the top. Instead of a ball to keep the grease in, this has a small flat spring loaded center.
There are other zerks that look like a standard zerk, bit do not have the head that a modern day gun would lock onto, just a taper nipple to about 3/16" at the top. Don't know what they are called either.
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17 years 4 months ago #5156
by D4Jim
ACMOC Member 25 years
D47U 1950 #10164
Cat 112 1949 #3U1457
Cat 40 Scraper #1W-5494
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17 years 4 months ago #5157
by ccjersey
There are other zerks that look like a standard zerk, bit do not have the head that a modern day gun would lock onto, just a taper nipple to about 3/16" at the top. Don't know what they are called either.[/QUOTE]
Sure they aren't just worn out? Certainly would have to be a low pressure system. Maybe they can be replaced with standard.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time:D
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17 years 4 months ago #5159
by tomseabee
If my memory serves me right, I think the kind of button head fitting you are referring is more properly called a "giant button head fitting". I believe the standard button head fitting is smaller in size than is used on say the Cat D2undercarriage and others.
BTW, NAPA sell a grease gun tip that works with the giant button head fitting and screws onto a standard grease gun hose (1/8" NPT??).
tom
Tom Smith
D2 5U dozier (1956)
D311 Genset (ex RCAF unit)
Cat Twenty (1928)
Cat Ten (1929)
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17 years 4 months ago #5160
by edb
Hi Scott,
as far as I know the fittings for rollers and idlers are Giant Button Head fittings by Alemite. Here is a copy of a page from a "Caterpillar Accessory and Supply Catalog" dated 1939!. The then 3B8484 is Alemite P/No 1826 and the then 2F1336 is a 1822, both with 3/8" pipe thread.
Hope this helps
Eddie B.
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17 years 4 months ago #5162
by Old Magnet
Most everyone got it right "Giant Button Head" (7/8 diameter) vs "Standard Button Head" (5/8 diameter)
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What is the name of the old flat grease zerk?
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