Reliable Bearings Wheel Seal SL-173, 2.569 Inch OD x 1.719 Inch ID x 0.500 Inch Width, for Trailer Hubs and Bearings

The Reliable Bearings SL-173 is a wheel seal sized for trailer hub and bearing assemblies, designed to keep grease inside the hub cavity while blocking water, dirt, and road grime from reaching the bearings. This is a common failure point on boat trailers and utility trailers that see regular submersion during boat launching and retrieval, making a properly sized, snug-fitting seal an important part of routine hub maintenance. The SL-173 is built to a 2.569 inch outer diameter, 1.719 inch inner diameter, and 0.500 inch width, so it is intended for hub bores and spindles matching those exact dimensions. Installing a wheel seal that does not match these measurements can allow grease to leak out or water to work its way into the bearing race, leading to premature bearing wear or failure. This seal falls in the Trailer Hubs and Bearings category and is typically replaced any time hub bearings are repacked or replaced, or whenever a seal shows signs of cracking, hardening, or leaking grease. Confirm your hub's OD, ID, and width against the SL-173 specifications below before ordering to make sure it is the correct seal for your application.

Specifications

• Brand: Reliable Bearings
• Manufacturer Part Number: SL-173
• Product Type: Wheel Seal
• Outer Diameter: 2.569 inches
• Inner Diameter: 1.719 inches
• Width: 0.500 inches
• Weight: 1 pound
• Application: Trailer Hubs and Bearings

Frequently Asked Questions

What are the dimensions of the Reliable Bearings SL-173 wheel seal? The SL-173 measures 2.569 inches outer diameter, 1.719 inches inner diameter, and 0.500 inches in width.

What is the SL-173 wheel seal used for? It is used to seal trailer hub and bearing assemblies, keeping grease in and water and debris out, which falls under the Trailer Hubs and Bearings category.

How much does the SL-173 wheel seal weigh? 1 pound is the weight of the Reliable Bearings SL-173 wheel seal.

Will the SL-173 fit my trailer hub? Fit depends on matching your hub's exact bore and spindle dimensions to the SL-173 specifications of 2.569 inches OD, 1.719 inches ID, and 0.500 inches width; measure your hub before ordering.

When should I replace a trailer wheel seal like the SL-173? Replace it any time you repack or replace hub bearings, or as soon as a seal shows cracking, hardening, or grease leakage, since a worn seal lets water into the bearing race.

Is the SL-173 a genuine Reliable Bearings part? Yes, SL-173 is the manufacturer part number for this Reliable Bearings wheel seal.

What is included when I order the SL-173? An order of the Reliable Bearings SL-173 includes one wheel seal sized at 2.569 inches OD by 1.719 inches ID by 0.500 inches width.

Can boat trailer hubs use the SL-173 wheel seal? Yes, this seal is listed under the Trailer Hubs and Bearings category, which covers boat trailer hub applications where the dimensions match.

How do I know if my old seal matches the SL-173 dimensions? Measure the outer diameter, inner diameter, and width of the seal you are removing and compare them to the SL-173 specifications of 2.569 inches OD, 1.719 inches ID, and 0.500 inches width.

Does the SL-173 come with grease or other hub hardware? No, the SL-173 is the wheel seal only; it does not include grease, bearings, or other hub hardware.