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.
Can you over grease a ball joint?
DO NOT CONTINUE GREASING ONCE YOU SEE THE BOOT SWELL. The seal that holds that grease in the ball joint can be compromised if too much pressure is applied. If this happens you will be replacing that part sooner than later.
Heat up clogged grease fittings and pins with a standard hair dryer or a heat gun on the low setting. Attach the grease gun and use it immediately; the new grease will push the now-softened older grease out of the way and unclog the fitting.
What is a grease fitting called?
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 are the 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.
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.
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.
Tips for Greasing Zerk Fittings Use Just Enough: Don’t overfill when you grease Zerk fittings. Usually, three or four pumps of grease are enough and over-greasing a joint pushes grease out the aforementioned seals, which attracts dust, sand, and dirt.
How do you put grease in a universal joint?
Attach the grease gun to the fitting point and squeeze it a couple of times. Continue to fill the u-joint until a small amount of grease comes out or until you see clean grease coming out.
What kind of grease do you use on U-joints?
What type of grease should I use to lubricate my universal joints equipped with grease fittings? A good quality lithium complex soap based EP (Extreme Pressure) grease with a NGLI grade of 1 to 2 is recommended.
Do you have to grease U-joints?
The U-joints do not have grease fittings.
When should you grease U-joints?
In most cases, you have to grease your u-joints every 5,000 miles or so. When you fail to service your u-joints on a regular basis, they will fail. You don’t have to worry about this problem with maintenance free u-joints. Misalignment: This happens when you change the vehicle’s ride height.
I do mine at about every 6000-7500 miles. Halfway between oil changes which are in the 12000-15000 mile range. Also greased at oil changes.
What does NLGI 2 mean?
NLGI Grades 1-3 The most commonly used greases, such as those used in automotive bearings, would use a lubricant that is NLGI grade 2, which has the stiffness of peanut butter. Grades within this range can operate in a higher temperature range and at higher speeds than NLGI grades 000-0.
Which wheel bearings on a car need to periodically be lubricated with grease?
Passenger-car wheel bearings are typically grease lubricated and sealed for life, which means the lubricant can’t be replaced.
What happens if you don’t grease your bearings?
Without lubrication, bearings can be expected to fail early and possibly cause other equipment to fail. The three main concerns with bearing lubrication are: Specifying the right amount ” Rolling element bearings operate at their optimum temperature when the minimum amount of lubricant is used.
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