What is the most common grease fitting size?

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.

Can you over grease a grease fitting?

While applying grease minimizes wear of parts and bearing, over-lubrication can reduce a component’s life expectancy. For instance, too much grease can increase running temperatures and lead to energy losses.

Are there different size grease gun fittings?

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.

Can you Overgrease a bearing?

“Too much grease in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures.

How do I know when a grease fitting is full?

If this is the case, the best tactic is to “feel” the grease into the bearing cavity until slight resistance or back pressure is felt against the trigger, or lever, signaling the bearing cavity is now full.

What size are grease fittings on John Deere tractor?

John Deere Classic There are 1 each of these fittings: 10 mm x 1 straight, 10 mm x 1 45° angle, 10 mm x 1 90° angle. John Deere grease fittings are manufactured to the most stringent quality standards and are heat-treated to SAE specifications.

Can you over grease a bearing?

Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures.

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.

What is a grease fitting?

Grease fitting. A grease fitting, grease nipple, Zerk fitting, or Alemite fitting is a metal fitting used in mechanical systems to feed lubricants, usually lubricating grease, into a bearing under moderate to high pressure using a grease gun.