How to Determine Correct Replacement Hubs for Boat Trailer
Question:
I have a boat trailer rated at 2000lbs. The current hub set up is 40+ years old an both need to be replaced, one is completely shot and the bearings and all internal parts are missing. The tire is actually rubbing the trailer fender. There are 4 bolts separated by 4 inches. What are the differences in the marine grade 4 and 4 hub sets you offer. I have no experience, but am a quick learner and intend on installing the new hubs myself. I measured the current tire rim at 9 in diameter. Not sure of tires size. Thanks
asked by: Tim D
Expert Reply:
The differences are all about fit for hubs, and these are very specific to the spindle you have, and I can tell you how to determine the correct replacement hubs.
To start, you need to know the weight rating of your axle; you said the trailer was rated for 2,000 lbs but I'm not sure if you meant that was what the axle was rated for. The most important thing after that is to know what bearings your current hub has.
It sounds like you may have done this already, but you will need to take apart your current hub assembly and look at the bearings themselves; wipe away the grease and you should be able to see the part number stamped directly on them. You mentioned one side is shot so hopefully the hub on the other side is not. However, If you are unable to find them, you need to use digital caliper and measure your spindle to the thousandths of an inch where the bearings and grease seal ride. You can use the photo I've attached to see exactly where you need to measure.
If you get back to me with this information I'd be happy to try and help you find the correct hub. I have also added a link to our entire selection of hubs for you to come back to.
Product Page this Question was Asked From
Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized
- Trailer Hubs and Drums
- Hub
- Easy Grease
- EZ Lube
- L68149
- L44649
- For 3500 lbs Axles
- 1/2 Inch Stud
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: 5 on 4 12 hub
- Shop: CE Smith Trailer Wheel Lug Nut - Zinc-Plated Steel - 1/2" - Qty 1
- Shop: CE Smith Trailer Idler Hub Assembly w/ Case for 2.5K Axles - 5 on 4-1/2 - Galvanized - Pre-Greased
- Search Results: 5 on 4 12
- Shop: Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized
- Shop: Kodiak Trailer Hub for 3,500-lb Axles - 5 on 4-1/2 - Stainless Steel
- Video: CE Smith Trailer Hubs and Drums CE13215 Review
- Q&A: Will CE Smith Trailer Hub Assembly for 3.5K Axles - 5 on 4-1/2 - CE13511 Work with 14 Inch Wheels
- Shop: Progressive Dynamics 4100 Series RV Converter w/ Charge Wizard and AC/DC Distribution Panel - 35 Amp
- Shop: Brophy Banjo Eye for 5/16" Diameter Safety Chain - Raw Steel - Weld On
- Search Results: deck screws
- Shop: Go Power RV Converter and Smart Battery Charger - 12V - 45 Amp
- Shop: Camper Tie-Downs
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer lights
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Q&A: How to Determine the Size of a Trailer Hub Assembly for Replacement
- Search Results: lug nuts
- Article: Most Popular Wheel Bearings
- Shop: Suspension Enhancement
- Search Results: lug nut
- Article: Trailer Tire Sizing
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Shop: Brake Controller
- Search Results: trailer jack
- Article: How to Choose the Right Trailer Hitch Class
- Video: Choosing the Right Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?