There is effectively just one size
. There are some other weird ones out there, the common being button head I believe, but if it looks like a standard grease zerk it is going to be the standard size. 11/1/17 3:22 p.m. Grease guns are the devil.
Are there different types of grease fittings?
There are three major thread types for grease fittings:
metric, taper or parallel, and unified
. M5, M6, M7, M8, and M10 are common metric threads. British standard pipe (BSP), pipe thread fine (PTF), and national pipe thread fine (NPTF) fittings use tapered or parallel threads.
Are all grease fittings the same?
Grease fittings come in many different styles. There are two grease fittings that are very common. These are the 1/4′′-28 thread and the
1/8′′
NPT thread. However, there are other less common grease fitting threads in use.
Are grease fittings a standard size?
The most common standard grease fitting size is
1/4′′‐28 SAE‐LT
and is often used in automotive applications. They can also be found in agricultural environments as well as other various standard duty applications. For heavy duty applications, larger 1/8′′‐27 PTF zerk fittings can be found.
Is there a difference between metric and standard grease fittings?
there IS a difference between metric and
american grease
fittings. see photo below. metric is on the left, american on right. you can see one is slightly longer then the other which is fatter and the angle of the curve coming in from the tip is different.
How do you identify grease fitting threads?
The best way to determine thread pitch of a grease fitting is
to compare the threads to something with a known thread
. A thread pitch gauge is the ideal tool for this but you can also compare the grease fitting threads to a known bolt thread, pipe thread, or another grease fitting.
Are Zerk fittings tapered?
Taper Thread Grease Fittings are used on cars, trucks and many types of industrial machinery. … The included angle of the thread for a 1/4′′-28 taper thread grease zerk is 60o.
How do you grease Zerk fittings?
- Unscrew the barrel from the grease gun. …
- Screw the barrel back into the grease gun. …
- Pull the grease gun’s handle or lever (depending on your grease gun model) to pump grease into the zerk fitting.
Are John Deere grease fittings metric?
21 assorted metric grease fittings in nine of the most popular styles and sizes are contained in an easy-to-handle, sturdy plastic box with six separately labeled and illustrated compartments. … John Deere grease fittings are manufactured to the most stringent quality standards and are heat-treated to SAE specifications.
What size Tap do I need for a grease ZERK?
| Fitting Thread Size Tap Drill Selection For Standard Thread Fittings Drill Size Selection for Spin Drive Fittings | 1/4′′-28 #3 (for soft metal use #5) “A” – .234′′ Dia. | 5/16′′-32 9/32′′ (for soft metal use “J”) – | 1/8′′ Pipe 11/32′′ (for soft metal use “R”) 3/8 – .375′′ Dia.* | 1/4′′ Pipe 7/16′′ – |
|---|
Are grease fittings metric?
Metric Grease Fittings are
available in both regular and stainless steel
. Metric Grease Fittings are also referred to as Metric Zerk Fittings, Metric Lubrication Fittings, Metric Hydraulic Fittings, and Metric Zerks.
What does ZERK mean?
(zɜrk ) noun.
a small metal fitting through which grease can be inserted into a mechanical joint
that requires periodic lubrication.
What thread is a Zerk fitting?
SAE‐LT (Society of Automotive Engineers) threads
possess SAE pipe thread dimension of 1/4′′‐28 taper. Grease zerk fittings in the automotive industry as well as many other industrial machines and standard duty applications use SAE‐LT threads.
How do you get grease out of a grease fitting?
Attach a
commercial grease fitting cleaner
to the clogged grease fitting or grease pin. Gently tap the grease fitting cleaner with a small hammer; this will force either oil or air into the fitting, depending on the type of grease fitting cleaner, and effectively unclog the fitting.
Is grease Zerks pipe threaded?
Grease fittings are a common component found on nearly every mode of transportation or piece of machinery. Pipe threads, which are formed onto the grease fitting’s shank, allow a large portion of fittings to securely attach to their mating component.
How do you change a grease fitting?
- Clean the area around the broken grease fitting with a rag. …
- Place an appropriate size open-end wrench around the hex nut of the fitting. …
- Thread a new grease fitting into the grease hole until you can no longer turn it by hand.
