Grease-through spindles (Dexter EZ-Lube®) and pressure caps (Bearing Buddy®) promise “quick-shot” bearing care. They deliver—until they don’t. Here’s a straight look at what works, what can backfire, and why an old-fashioned tear-down still saves the day.

The Good — Why EZ Grease Systems Became Popular

• Minutes, not hours
  A grease gun, a couple slow pumps, and you’re ready for the next haul—perfect for busy fleets and weekend boaters.

• Water defense
  Bearing Buddy’s® spring-loaded cap maintains slight hub pressure, keeping river water or salted slush from being sucked past the inner seal.

• Frequent lubrication
  Because it’s so easy, owners actually grease their hubs more often, flushing out contaminants before they can pit rollers.

• Budget friendly
  Upgrading to EZ-Lube® spindles on a new axle or swapping in pressure caps costs far less than a roadside bearing failure.

The Bad — Hidden Risks Most Brochures Skip

• Seal blow-outs
  Pump too fast and the new grease hydraulically pops the rear seal. You may not notice until brake shoes are coated and braking power plummets.

• Grease incompatibility
  Mixing calcium-sulfonate marine grease with the old lithium complex can turn both into cottage cheese—zero lubrication value.

• False security
  Seeing shiny grease purge at the cap lip feels reassuring, yet metal filings, burnt grease and blue heat rings hide out of sight inside the hub.

• Zerk contamination
  A dirty grease-gun tip pushes grit right down the spindle passage—grit that never gets flushed unless the hub comes off.

The Ugly — Real-World Failures We See in the Shop

1. “Spinning” toward Disaster
   A landscaper relied solely on EZ-Lube®. Months later the inner bearing seized, spun the race, and machined the spindle to a taper. The entire axle had to be replaced.

2. Milkshake Grease
   A fishing guide dunked hot hubs at the ramp. Bearing Buddy® caps masked a torn seal; water emulsified the grease into a mocha sludge. Bearings scored, magnets ruined, weekend charters canceled.

3. Self-Greasing Brake Shoes
   An over-zealous owner filled the hub until the piston was flush—then gave “one more squirt for luck.” Grease blew past the seal, soaking electric brake linings. The 28-foot camper took 120 feet to stop on I-75.

4. The Mystery Heat
   A snowmobile trailer ran fine all winter—until one hub got too hot to touch. Tear-down revealed a hardened grease plug blocking the spindle’s outlet port. Outer bearing starved and welded itself to the race.

Why Annual (or 12,000-Mile) Tear-Downs Still Matter

Even the best quick-lube system can’t:

• Show you pitting, flaking or bluing on races and rollers.

• Reveal hairline spindle scoring that eventually spins a bearing.

• Replace worn seals before they leak.

• Reset bearing preload with a torque wrench and cotter pin.

• Clean out incompatible grease blends hiding behind the inner cone.

A full inspection means:

1. Remove the hub
   Wipe every part clean—no guessing through dirty grease.

2. Mic bearings and races
   Feel for gritty spots, measure against spec.

3. Check spindle journals
   Look for ridges or discoloration that signal overload.

4. Replace seals
   Cheap insurance against the next season’s water intrusion.

5. Set preload correctly
   Run the nut down, back it off, torque to spec—no wobble, no drag.

Bottom Line

EZ-Lube® spindles and Bearing Buddy® caps are fantastic “between-checkup” tools—but they’re not x-ray vision. Pair them with a disciplined annual or mileage-based tear-down and your trailer will roll cooler, stop shorter, and last far longer.

Need professional bearing service or just a sanity check?

Motor City Trailer Parts & Repair in Brighton, MI has everything in-house—presses, races, seals, and seasoned techs who’ve seen every shade of ugly. Call (248) 986-8000 and keep the “good” in your grease game year after year.

Disclaimer: Motor City Trailer Parts & Repair is an independent, third-party service facility. Dexter EZ-Lube® and Bearing Buddy® are registered trademarks of their respective owners. Motor City Trailer Parts & Repair is not affiliated with, sponsored by, or endorsed by Dexter Axle Company, Bearing Buddy, or any related entities. References to these products are used solely for identification and informational purposes. All repair and maintenance services are performed exclusively by Motor City Trailer Parts & Repair. Information on this website is provided for general guidance and should not be construed as professional legal or technical advice. Use of aftermarket or non-OEM parts is disclosed to customers in advance and may affect the original manufacturer’s warranty.

Cowboys and cowgirls who travel with living quarters horse trailers, gooseneck horse trailers, stock trailers and bumper pull horse trailers should be aware of unique considerations to ensure the safety and comfort of both their horses and themselves during their journeys. Here are some key aspects to be careful about:

Horse Safety:

• Loading and Unloading: Ensure proper loading and unloading procedures to minimize stress on the horses. Use appropriate techniques and consider using a trailer with a ramp for easy access.
• Horse Behavior: Be attentive to the behavior of your horses during travel. Some horses may become agitated or stressed while in a trailer. Monitor them through the journey and address any signs of distress promptly.
• Ventilation: Maintain proper ventilation in the horse compartment to prevent overheating. Ensure that vents and windows are open as needed, especially in hot weather.

Weight Distribution:

• Carefully manage the weight distribution in the trailer to prevent trailer sway or instability. Ensure that horses are evenly distributed and securely tied or harnessed.
• Keep an eye on the overall weight of the trailer, including the living quarters section. Overloading can lead to safety issues on the road.

Tire Maintenance:

• Check tire pressure regularly to prevent blowouts or flat tires. The weight of the horses and living quarters can put extra stress on tires.
• Inspect tires for wear and damage before each trip. Replace worn or damaged tires promptly.

Emergency Preparedness:

• Be prepared for emergencies on the road. Carry a well-equipped roadside emergency kit, including tools, tire repair supplies, and first aid supplies for both horses and humans.
• Know the location of nearby equine veterinarians and emergency services along your route.

Horse Comfort:

Ensure that horses have adequate headroom, legroom, and space to move comfortably in the trailer. Avoid overcrowding.

Provide fresh water and hay during stops to keep horses hydrated and content.

Driving Skills:

Cowboys and cowgirls should have the necessary driving skills to handle a trailer, especially if it's a larger gooseneck type. Practice maneuvering, backing up, and turning safely before embarking on long journeys.

Weather Considerations:

Be aware of weather conditions along your route. Extreme heat or cold can affect both horses and humans. Plan stops accordingly and carry appropriate clothing and supplies.

In cold weather, ensure that the living quarters are adequately insulated and heated to stay comfortable.

Securing Belongings:

Secure all personal belongings and equipment within the living quarters. Sudden stops or rough terrain can cause items to shift or fall, potentially injuring occupants or horses.

Regular Maintenance:

Keep up with regular maintenance of the living quarters and trailer components. Ensure that electrical, plumbing, and HVAC systems are in good working order.

Inspect living quarters for leaks and structural issues that could compromise safety and comfort.

Rest Stops and Hydration:

Plan regular rest stops for both horses and humans. Hydrate yourself and your horses adequately, and allow time for rest and stretching during long journeys.

Legality and Regulations:

Be aware of local and state regulations regarding trailer safety, weight limits, and transportation of horses. Ensure that your trailer complies with all legal requirements.

Hitch and Towing:

Inspect the hitch and towing equipment regularly to ensure they are in good condition. Follow proper hitching and unhitching procedures to prevent accidents.

By being attentive to these unique considerations and practicing good horsemanship and trailer maintenance, cowboys and cowgirls can enjoy safe and comfortable travels with their living quarters horse trailers. It's essential to prioritize the well-being of both horses and humans during the journey.

Always, always remember if something on the horse trailer is broken, get the horse trailer repair work done as soon as possible. Keeping the trailer in good repair increases safety, enjoyment and resale value!

Dump trailers are used in a wide range of industries, from agriculture to construction, excavation, trash/garbage collection and more. These trailers can take a beating in the course of normal work. Annual maintenance is important, as it is for all trailers. Dump trailers have additional components and systems that should be inspected, maintained and repaired in a timely manner. Axles, Wheel bearings, Brakes, Hydraulics, Frames, Body, Floors, Walls, Gates, (dump gates), and sometimes there's a roof that shouldn't be forgotten. Keep your business running optimally by having your dump trailer serviced regularly. We also provide total dump trailer restoration, painting, rust repairs, etc. Visit our dump trailer repair page for more information, call us for immediate information.

Mechanical, Brakes etc:

Call (248) 417-9910

Farmington Hills

Sandblasting/Paint etc:

Call (248) 986-8000

Brighton, MI

Mechanical, Brakes etc:

Call (248) 417-9910

Farmington Hills

Sandblasting/Paint etc:

Call (248) 986-8000

Brighton, MI

Mechanical, Brakes etc:

Call (248) 417-9910

Farmington Hills

Sandblasting/Paint etc:

Call (248) 986-8000

Brighton, MI