What are the different types of grease fittings?
What are the 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.
What is the standard size grease fitting?
1/4″‑28
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.
What are grease fittings called?
Grease fittings, also known as Zerk fittings, are metal fittings for mechanical systems so that they can feed lubricants into various bearings using a grease gun with medium to high pressure.
Are all Zerk fittings the same?
Zerk Fittings may be all the same But I have Had Many that would either NOT Go On or had a Heck of a Time Getting it Off. It May Be the Fitting on the Gun, But rarely does it (the Job) Come out Satisfactorily, I think some may be a Metric size Zerk or Gun End But I never seem to Have the right Combo.
What size thread is a Zerk fitting?
1/4″-28
The included angle of the thread for a 1/4″-28 taper thread grease zerk is 60º. Taper thread grease fittings include a dirt-excluding ball check. Taper thread grease fittings are also referred to as taper thread zerk fittings, taper thread grease zerks, or a taper thread zerk.
Why is it called a Zerk fitting?
The Zerk design, named after Oscar Zerk, used a fitting much smaller than the Alemite pin-type and did not lock the hose coupler or hand gun and fitting together. Instead, the seal between them was maintained by the pressure of a pushing action when the operator applied the coupler to the fitting.
What size thread is a grease fitting?
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.
Why is it called a grease ZERK?
What is a button head grease fitting?
Button head grease fittings are a heavier duty fitting distinguished by its flat, low profile appearance. They are able to handle large grease volume due to their high flow rate and sturdy construction. Button head fittings feature a smooth working surface and allow for easier coupler attachment and removal.
What are the sizes of Grease fittings?
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.
What is the size of a grease fitting?
A 1/4-28 is a standard size of grease fitting, and it will fall into a 1/8 NPT hole, not even close in size, a 1/8 pipe thread is like .375 diameter.
How do you clean grease fittings?
Keep grease fittings and pins clean and clear of dirt, debris and hardened grease so they remain effective. Spray a petroleum-based spray lube onto a grease fitting or grease fitting pin, then wipe it off with a rag.
Are there any grease fittings?
Types. There are many different types of products.