Reason for Star Design on Dexter Trailer Idler Hub Assembly
Updated 10/13/2026 | Published 10/12/2026
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Question:
I am wanting to buy two Dexter galvanized hubs and install full Timken bearing sets in each including races for my 00 Axis Products s/n49458 007 stickered as 2500lb axel Saf-T grease axel. A local trailer supplier sold me a bearing set stating that it was a 3500lb axle by looking at it in its assembled condition. Now I am a little confused because of the sticker on the axle and what he sold me. Since I bought the bearing set as an emergency spare, I have decided to buy the new hubs, install the Timken bearings, and swap out my current hubs. If I have to receive bearings with the new hubs I will install the bearings that come with the hubs in my old hubs as back-ups. I can then swap if needed. My trailer is a 2001 trailmaster boat trailer with 13 rims. Does it make sense that it is a 84 spindle even though the axle housing says 2500lb? Also the Dexter hub has a 5-star pattern vs. having a full circular construction. Weight savings? Any disadvantage for what I am using it for?
asked by: Tory B
Expert Reply:
Hey Tory! The Dexter Trailer Idler Hub Assembly # 8-248-50UC1-EZ is only available with the bearings. However, they aren't pre-installed so you can swap them for the Timken you already have if that is what you prefer.
It is certainly possible that a 2,500 lb axle could use a #84 spindle. I can't say for sure if that is the case with yours without measuring the spindle or getting the part numbers off of the existing bearings. If a local shop said it uses #84 spindles after looking at it, that is likely the case. You might want to pull a hub and measure just to be sure.
The reason for the design difference is weight reduction and better heat dissipation. Either design will work for your 2001 TrailMaster Boat Trailer.
Where are you headed next with your boat?
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