While MOOG greaseable parts come greased from the factory, they should also be greased at the time of installation to fill the dust boot and lubricate the interface between the boot and mating part. After installation, MOOG recommends greasing these parts at each oil change for heavy-duty vehicles and at every tire rotation (i.e., annually) for standard-duty vehicles.

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During the greasing process, the flow of fresh grease is directed across the bearing surfaces, displacing any accumulated debris away from the ball and bearing assembly. The grease relief valve found in all MOOG dust boots shuts out moisture and debris while ensuring proper fill levels by releasing excess grease.

Installing a V-Ring seal is an easy process that can be completed quickly and efficiently. Follow these steps to ensure a proper installation:

V-ringsealSKF

At Independence Seal Company, you will get a variety of V-Ring seals to suit different applications and requirements. We provide V-Ring seals in three distinct styles: VA, VS, and VL. These are available in two material options: NBR (black) and Viton® (brown).

Greasing chassis parts allows the flow of fresh lubricants to all critical areas while flushing contaminated grease from the joint. In addition, fresh grease also lubricates better than old grease that has broken down from time, heat and contamination. This ensures ball stud movement is well lubricated and the socket is full of grease, which keeps out contaminants and prolongs the life of the component.

The conditions in which the vehicle operates in needs to be accounted for when choosing a maintenance schedule. Mileage isn’t the only factor to consider – how is the vehicle used? Is it a light commercial vehicle? Does it sit for extended periods of time? Is it used for delivery services or ridesharing? Or maybe it’s driven in wet, muddy, sandy or salty conditions? These heavy use and severe conditions increase the likelihood of contamination that can cause premature wear.

Oilseal

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On applications with tight clearances and on the end of the cap on MOOG Super Strength® U-joints, a low-profile grease fitting is used. A needle fitting is required to inject grease for these applications.

Most original equipment chassis parts are non-serviceable, meaning the grease they were filled with at the factory is the only protection against contaminants, corrosion, and wear that those parts will ever get.

Getting Ready Before starting, take time to inspect the parts for damage. Examine the boots for damage and splitting. In addition, be sure to check for loose play and other signs of wear. If any damage or wear is present, the chassis part should be replaced.

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When greasing MOOG chassis parts, a hand grease gun is preferred. If a pressured grease gun is used, take care not to exceed the grease relief valve’s output to prevent damage to the boot. MOOG engineers suggest using a premium heavy-duty NLGI #2 lithium or synthetic grease.

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v-ringsealsize chart pdf

To ensure maximum service life and smooth operation, many MOOG® chassis parts feature a greaseable design. This design allows new lubricant to flush contaminants away, reducing corrosion and wear; MOOG recommends that these components be serviced on a regular basis to extend the service life.

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The content contained in this article is for informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.

V-ring seals prevent dirt, moisture, and other unwanted materials from entering machinery components while ensuring that lubricants remain sealed within. These versatile seals maintain the efficiency and longevity of your mechanical systems. V-rings stretch over the shaft and create a tight seal. Their flexible lip lightly contacts the counterface at a right angle to the shaft for an effective barrier against contaminants. These seals are highly effective, but they excel when used in conjunction with rotary shaft seals. So, if you want to extend the life of bearings, oil seals, and shafts, you should choose this combination, as it provides an additional layer of protection against contaminants and preserves lubrication. Independence Seal Company offers v-ring seals in various configurations and made of materials like Viton, NBR, silicone, EPDM, and so on. For more information or to request a quote, please contact our team now.

At Independence Seal Company, our experts will work closely with you to find the right solution for your application. We can provide replacement seals for SKF, Chicago Rawhide, Trelleborg and Fruedenburg, Our expertise with materials and in-depth understanding of applications, industrial processes and their sealing requirements, enables us to design and develop customized seals that ensure optimal performance and durability. Contact us today to find the perfect V-ring seals for your application.

After greasing each chassis part, be sure to wipe the grease fitting and surrounding area clean to prevent contaminants from building up on and around the grease fitting and boot.

Pump grease slowly into the component until the old grease and contaminants are flushed out of the assembly through the grease relief valve (found where the boot contacts the stud).

The best way to know if a MOOG part is greaseable is to look for the presence of a zerk fitting. This photo shows the zerk fitting that is the hallmark of a MOOG part with a greaseable design.

In addition, the ability to grease the part also seals the component by fully filling the cavities of the dust boot. A part completely full of grease is an excellent seal because there is no place for water to occupy.

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Greasing Procedure Clean the grease fitting of any old grease and contamination to prevent it from entering through the grease fitting.