Bearing Buddy Bearing Protectors - Model 1781 - Chrome Plated (Pair)

Bearing Buddy Grease Caps - BB1781

Provide your trailer wheel bearings with premium protection - replace your existing grease caps with Bearing Buddies. They install in seconds and provide an easy, safe way to monitor and control the level of grease in your axle hub.

Features:

• Replaces the grease cap in the axle hub
• Prevents wheel-bearing failure
  • Keeps water and dirt out of hubs and bearings
  • Allows boat trailer wheels to be completely submerged
  • Stops corrosion and pitting on bearings
• Provides easily accessible grease fitting
  • Makes adding grease to the bearings quick and simple
• Maintains slight, controlled pressure (3 psi) with spring-loaded piston, preventing water from entering hub
• Prevents overfilling and rear seal damage with automatic pressure-relief feature
  • Grease seeps around piston edges and into barrel when full
• Constructed of stainless steel internal parts and triple-chrome-plated steel barrel
  • Ensures longer-lasting fit than plastic or aluminum products
• Includes rubber covers
• Installs easily
• Made in the USA

Specs:

• Fits 1.781" hub bore
  • Works with outer bearing model LM-11949
  • Works with outer bearing cup (race) model LM-11910
• Lifetime warranty

Bearing Buddy Operation

Replace your existing grease cap with a Bearing Buddy to ensure a safe, easy way to monitor and control the level of grease in your axle hub. To adjust the amount of grease in the hub, use a grease gun to add more through the appropriate fitting. Adding grease moves the Bearing Buddy spring-loaded piston outward 1/8".

The O-ring inside the barrel of the Bearing Buddy maintains a seal from the outside. The interior of the Bearing Buddy is pressurized, preventing water from entering the barrel and diluting the grease.

An automatic pressure-relief feature is built into the Bearing Buddy. When the device is full, grease will seep around the edges of the piston and into the barrel. This prevents overfilling that can damage the inner seal.

You can manually check the grease level in your Bearing Buddy by pressing on the edge of the piston. If you can rock or move the piston, the hub is properly filled.

41200 Bearing Buddy Model 1781 - Chrome Plated (Pair)

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Ask the Experts about this Bearing Buddy Grease Caps
Do you have a question about this Grease Caps?

• How To Tell What Size Bearing Buddy Is Needed for My Trailer Hubs
  
• The portion you need to measure is not the cap, but the the hub bore. Remove the grease caps and measure the diameter of the opening the caps occupy. This is the hub bore. You will need an accurate measuring devices like a set of dial calipers that is accurate to 3 decimal places. The Bearing Buddy pair you were looking at, part # BB1781, fits a 1.781 inch hub bore. The measurement you find should match exactly or very close to one of the measurements displayed on the Bearing Buddy page I hav
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