What Is A Grease Fitting Called?

What Is A Grease Fitting Called?

What Is A Grease Fitting Called? Grease fittings (also known as Zerk fittings or grease nipples) are permanently installed on mechanical systems and bearings to provide lubrication points for feeding lubricants to the systems or bearings without overflow or leaks.

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 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 a lube fitting? Simply put, a zerk is a fitting that lets you inject grease lubricant into wear points on cars or trucks. This allows smooth, steady movement and better overall handling.

What Is A Grease Fitting Called? – Related Questions

What are Zerk fittings?

Grease fittings, also known as zerk fittings or grease nipples, serve as lubrication points on bearing housings or other mechanical components. Their design provides a secure connection to a grease gun coupler for delivering precise amounts of grease into bearings and other moving systems.

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.

Are all grease nipples the same size?

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.

How much grease do you put in a grease fitting?

Grease guns vary in the amount of grease pumped per stroke, from one to three grams of grease or higher. The actual output can vary depending on the age of the grease gun.

What does ZERK mean?

A grease fitting, grease nipple, Zerk fitting, grease zerk, 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.

Why is my grease gun leaking?

Gravity, shearing and vibration are all forces that can separate oil from a grease thickener. It happens in a machine when moving parts shear through the grease to release oil into contact points. If that low point is not a sealing surface, oil can leak away from the machine, grease tube or even a grease gun.

How tight should Zerk fittings be?

The mating connection should be snug but not so tight that one has to rip the end off. Clean the zerk off of the ones that are tight and compare them with the ones that are not.

Are Zerk fittings universal?

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 threads are grease nipples?

There are ten common types of pipe thread standards used for grease fittings. SAE‑LT, NPTF, PTF, UNF, UNEF, ISO Metric, BSF, BSPP, BSPT, and German Thread are the most popular. SAE‑LT (Society of Automotive Engineers) threads possess SAE pipe thread dimension of 1/4″‑28 taper.

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 is the best grease gun?

7 Best Grease Guns In 2021 Reviews
Dewalt 20V Max Cordless Grease Gun.

Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun.

Bravex Heavy Duty Pistol Grip Grease Gun.

GreaseTek Premium Pistol Grip Grease Gun.

Utool Grease Gun.

Steinbrucke High-Performance Pistol Grip Grease Gun.

Rexbeti Grease Gun.

What is the best grease gun coupler?

Reviews of the Best Grease Gun Coupler
LockNLube Grease Gun Coupler Locked onto Zerk Fitting.
Check Price at Amazon.

Lumax LX-1430.

AZUNO Grease Gun Coupler, 2nd Generation.

LockNLube Grease Gun Coupler XL.

Push-On 90 Degree Grease Coupler.

Do grease Zerks come in different sizes?

There are Metric grease zerks. Seems they come in sizes like M6, M8 and M10. More good news.

How many pumps are in a tube of grease?

How many pumps are in a grease tube

Can you put too much grease in 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 is the process of greasing?

Lubrication is a process which aims at reducing friction between two moving pieces. When two surfaces come in contact with one another, a fluid must be injected to separate them. The word « greasing » applies when grease is used to lubricate.

What size hole do I drill for a grease fitting?

Grease Fitting Thread Size
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.

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