Most customers determine if a grease seal has gone bad by inspecting the seal to notice if any grease is leaking out of the seal. In many cases, you will notice that grease is getting slung on the inside housing of your trailers wheel. Remember, if grease can get out, water can get in! Another instance that causes common grease seal replacement is when you are re-packing or inspecting your rear wheel bearings. While the outer bearing can be inspected without removing the grease seal from the hub, the inner wheel bearing is secured within the hub. The only way to remove this wheel bearing is by also removing the Grease Seal. The majority of the time, this grease seal is damaged during this removal process. It is ideal and very convenient to always have spare grease seals in your trailer maintenance kit, should you ever need to perform this task, you will be prepared. Below is a selection of replacement grease seals for common trailer hubs. We have common replacement grease seals for 4 Lug, 5 Lug, 6 Lug, and 8 Lug trailer hubs. Each grease seals is intended for use with a specific capacity and size of trailer Axle. As also it is recommended to confirm the size needed by measuring your current grease seal off your trailers axle.
The basic breakdown is:
1 1/2" Inner Diameter Grease Seal - 2,200 lb Axles 4 Lug or 5 Lug
1 1/4" Inner Diameter Grease Seal - 1,400 lb Axles to 2,200 lb Axles 4 Lug and 5 Lug
1.72" Inner Diameter Grease Seal - 3,500 lb Standard 5 Lug Axles
2 1/8" Inner Diameter Grease Seal - 5,200 lb to 7,000 lb Axles 6 Lug or 8 Lug
2 1/4" Inner Diameter Grease Seal - 5,200 lb to 7,000 lb Axles 6 Lug or 8 Lug
A properly performing Hub Grease seal is crucial to the safe towing process. Regularly inspect this component on your trailers hub to ensure it is in proper working condition. The Grease Seal is located on the backside of your trailer hub. Each Hub will use (1) Grease Seal in this location. The Grease seals task is to keep grease in, and water out as the hub rotates around the axles spindle.
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