Reliable Bearings Wheel Seal 1.986 - Trailer Hub Grease Seal, Part Number SL-122-1

The Reliable Bearings Wheel Seal 1.986 (part number SL-122-1) is a trailer hub grease seal sized for a 1.986 inch application, designed to keep wheel bearing grease contained within the hub while blocking water, dirt, and road debris from reaching the bearings. It is intended for use in trailer hub and bearing assemblies as part of routine bearing service or hub repack, sitting behind the inner wheel bearing to form the barrier between the hub cavity and the outside environment.

Installing a wheel seal in the correct size is a critical step whenever a trailer hub is repacked or a wheel bearing is replaced, since a worn, cracked, or incorrectly sized seal is one of the most common causes of grease loss and subsequent bearing failure. The Wheel Seal 1.986 from Reliable Bearings is built to the 1.986 inch dimension called out in its name, making it suited to trailer hub bores that require this specific size.

Specifications

• Brand: Reliable Bearings
• Manufacturer Part Number: SL-122-1
• Product Category: Trailer Hubs and Bearings
• Nominal Seal Size: 1.986 inches
• Weight: 1 pound

Frequently Asked Questions

What is the Reliable Bearings Wheel Seal 1.986 used for? The Wheel Seal 1.986, part number SL-122-1 from Reliable Bearings, is used in trailer hub and wheel bearing assemblies to retain grease inside the hub and keep water and debris out.

What size is the SL-122-1 wheel seal? SL-122-1 is sized to a 1.986 inch nominal dimension, as reflected in its Wheel Seal 1.986 product name.

How much does the Reliable Bearings SL-122-1 wheel seal weigh? This wheel seal weighs 1 pound.

What product category does SL-122-1 belong to? SL-122-1 is listed under Trailer Hubs and Bearings, reflecting its use as a component in trailer hub assemblies.

When should I replace a trailer wheel seal like the SL-122-1? A trailer wheel seal such as the Reliable Bearings SL-122-1 should be replaced any time the hub is opened for bearing service or repack, since reusing an old seal risks grease leakage and bearing damage.

Is the Wheel Seal 1.986 a genuine Reliable Bearings part? Yes, part number SL-122-1 is a Reliable Bearings branded Wheel Seal 1.986.

Does the SL-122-1 wheel seal come with the wheel bearings included? SL-122-1 is the wheel seal itself; it is a standalone seal component rather than a bundled bearing kit.

What happens if I install the wrong size wheel seal on my trailer hub? Installing a seal that does not match the hub bore, rather than a correctly sized part like the 1.986 inch SL-122-1, can allow grease to leak out or water to enter, leading to premature bearing failure.

Can the SL-122-1 wheel seal be reused after removing a hub? No, wheel seals such as the SL-122-1 are designed for one-time installation and should be replaced, not reused, once a hub has been disassembled.