Overview

The Attwood Marine 11108-7 is a HubMate wheel bearing protector for compatible trailer wheel hubs that replaces the standard dust cap and gives you an accessible grease fitting for routine service. It fits hubs with a 1.78 inch inner diameter and keeps positive grease pressure in the hub to help hold water and dirt back.

For boat trailers that are launched often, this matters at the ramp and on the road. You can add grease from the outside without taking the hub apart, which makes regular bearing care simpler between full inspections. The fitted PVC cover adds protection over the exposed end of the protector.

Key features

• Replaces the standard dust cap in compatible trailer wheel hubs
• Grease fitting lets you add grease without hub disassembly
• Positive grease pressure helps keep water and dirt out during launch and retrieval cycles
• Fits wheel hubs with a 1.78 inch inner diameter
• Custom-fitted PVC covers protect the exposed end of the protector

Compatibility and fit

Fit comes down to the hub opening. This model is sized for wheel hubs with a 1.78 inch inner diameter, so that measurement should match the trailer hub before ordering. It is made for hubs that use a dust cap style setup and need an external grease point for easier service.

This product is a better match for boat trailers than for the vessel itself, especially when the trailer sees repeated ramp use. It suits owners who want a cleaner way to maintain bearing lubrication without opening the hub each time grease needs to be added.

Maintenance and use

Routine greasing is simpler with the fitting positioned at the hub end, and that can help keep bearings lubricated between full bearing and seal service. It does not replace periodic inspection of bearings, seals, and grease condition, but it does make normal trailer hub maintenance easier to stay on top of.