Bearing Buddy Cap

The rubber caps on my bearing buddy hubs would fall off after a couple of uses. Grease would get flung all over my wheels and make a black mess.

I designed a simple cap that is a line to line fit with the outside diameter of the hub. The caps are tight and have stayed in place for a few months now (more than the rubber caps ever did). Note: The 3D printed caps are difficult to remove, but I guess that is better than them falling off.

I put a small grove along the inside to allow for air to escape and prevent a vacuum from forming when installing or taking off.