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Dutton-Lainson 21768 Trailer Grease Seal 3/4 Inch Spindle

Manufacturer

Dutton-Lainson

<p>Dutton-Lainson Company traces its roots back to 1886, when William M. Dutton and two friends established a small harness and horse collar shop in Hastings, Nebraska that grew into one of the largest horse collar manufacturing plants in the nation. For nearly 140 years, the company has been manufacturing high quality products across a variety of categories, designed to help hard-working men and women get things done. Today, Dutton-Lainson Company is one of the country's leading manufacturers of quality products for marine, agricultural, industrial, and automotive markets throughout the world.</p><h3>Heritage of Innovation and Quality</h3><p>In the 1940s, the company retooled to meet the needs of a world at war, and during this time received three Army-Navy E pennants, an award signifying the highest level of quality and service given to only 5% of the country's manufacturers at that time. This legacy of precision manufacturing and reliability continues today in every product that bears the Dutton-Lainson name. For well over a century, Dutton-Lainson Company has been respected for its innovative spirit and highest standard of integrity, meeting the needs of its customers by finding new ways to diversify and enhance its product lines and service.</p><h3>Essential Equipment for Work and Recreation</h3><p>Dutton-Lainson's product lineup focuses on the critical equipment needed for hauling, lifting, and securing loads across multiple industries. Their <a href="/7325-dutton-lainson-hand-winches-parts-200508">hand winches and parts</a> are engineered for reliability in demanding applications, from marine environments to agricultural settings. Whether pulling boats onto trailers, securing cargo, or handling materials on job sites, these manual winching systems deliver consistent performance with the durability expected from American manufacturing.</p><p>The company's <a href="/7325-dutton-lainson-tongue-jacks-201082">tongue jacks</a> represent another core strength, providing stable lifting and leveling solutions for trailers of all types. These jacks are essential components for anyone who regularly hitches and unhitches trailers, offering smooth operation and dependable weight capacity. Beyond specialized trailer equipment, Dutton-Lainson produces a comprehensive range of <a href="/7325-dutton-lainson-jack-14315">jacks</a> for various lifting applications, serving professionals and enthusiasts who demand tools that work as hard as they do.</p><h3>Built to Last in Real-World Conditions</h3><p>What sets Dutton-Lainson apart is the company's understanding of how its products are actually used. Equipment designed for marine, agricultural, and industrial environments must withstand exposure to weather, repeated stress cycles, and demanding conditions. The company's multi-generational experience in manufacturing translates into thoughtful engineering details—from corrosion-resistant finishes to robust gear mechanisms that maintain smooth operation over thousands of cycles. For professionals who depend on their equipment daily and recreational users who need reliability when it matters most, Dutton-Lainson delivers products backed by more than a century of manufacturing expertise and a reputation built on quality that endures.</p>

Part Number

21768
05/31/2036 8:57 PM
Sale Price

$4.28

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Dutton-Lainson 21768 is a precision-engineered grease seal designed specifically for trailer wheel hubs with 3/4-inch spindles. This essential component provides a critical barrier between your trailer's wheel bearings and the outside environment, protecting against water intrusion, dirt, and road debris.

Key Features:

  • Designed for 3/4-inch trailer spindles
  • Compatible with LM11949/LM11910 bearing applications
  • Double-lip seal design for superior protection
  • Spring-loaded construction retains grease inside the hub while keeping contaminants out
  • Precision-manufactured to ensure proper fit and long service life
  • Ideal for boat trailers, utility trailers, and other light-duty trailer applications

Proper sealing is critical for maintaining wheel bearing health and preventing premature failure. The Dutton-Lainson 21768 grease seal is manufactured to exacting standards to provide reliable protection in demanding marine and road environments. This seal is commonly used in trailer bearing kits for 3/4-inch straight axle spindles and pairs with standard LM11949 tapered roller bearings.

Products specifications

Bearings

LM11949/LM11910

Size

1.78

Spindle

3/4" O.D.

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