What is a grease relief fitting?
Pressure Relief Grease Fittings are commonly used on gear box housings and bearings, (such as king pins, universal joints, etc.), where excessive lubricant pressures are not desirable. These safety valves open at pre-determined pressures shown in the table below and can be used with either oil or grease.
What are Zerk fitting or alemite fittings used for?
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.
Where are alemite grease guns made?
Alemite Factory in Johnson City, TN.
Why is it called a ZERK?
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 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.* |
1/4″ Pipe | 7/16″ | – |
What is a grease relief valve?
This fitting works as a pressure-relief valve at the grease plug (or outlet). When the design pressure (typically 1 to 5 psi) is exceeded, the valve will open and vent off grease. When the pressure is relieved, the valve will close to form a seal like a normal grease plug.
What size grease fitting do I need?
What is the most common standard grease fitting sizes? The most common standard grease zerk 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.
Can you over grease a ball joint?
One concern about greasing ball joints is not wanting to overfill it and bust the seal between the ball joint and the dust boot, which leaves the joint open to contaminates that can potentially lead to failure.
Who makes alemite?
SKF
Products | Alemite | SKF.
Is there a grease gun made in USA?
SAE Products Heavy Duty Lever Action Grease Gun with 6″ Rigid Extension and 4 Jaw Coupler with Ball Check. Made in The USA.
Where are Alemite grease guns made?
When did cars stop having grease fittings?
The job of greasing the suspension system on your car had all but disappeared in recent years. Now, greasing is making a comeback. In the 1980s, many auto makers eliminated greasing points because they believed that the quality of grease had so improved it would last the life of the car. But motorists knew better.
What thread pitch is a grease ZERK?
SAE Products 1/8″ pipe thread grease fittings are commonly referred to as 1/8″ pipe thread zerk fittings.
How do you purge bearing grease?
For bearings equipped with fitting and drain: Remove lower drain plug; clean out all hardened grease. Wipe the grease fitting clean. Pump grease into the fitting until old grease is purged and new grease appears. While the drain plug is removed, allow the machine to run at operating temperature.
Is red grease good for ball joints?
It’s hard to give Lucas Oil’s Red ‘n’ Tacky the pick for Best Value as opposed to Best Overall. This grease has a lot going for it and is an excellent multipurpose grease to keep around the shop for lubricating various parts of your car or truck, including the ball joints.
How often should ball joints be greased?
every 3000 to 5000 miles
The JBA K6292 ball joint should be greased every 3000 to 5000 miles. If you go in mud pits or across streams with the vehicle, grease the ball joint after you are done playing in the mud and water.