How to Determine the Correct Hub Replacements for a Home Made Boat Trailer
Question:
i have a home built boat trailer , i need to replace the hubs. its a 5x4 1/2 bolt pattern 15in wheels the axel is 4 3/4inch from the seal lip. the seal dia.is 1 5/8inch the top bearing shoulder is 1 3/8dia. the bottom shoulder is 3/4dia. i need 4 hubs,with bearings,races,seals,and axel caps
asked by: Michael D
Helpful Expert Reply:
Hubs with a 5 on 4-1/2 inch bolt pattern are very common. In order to determine the correct replacement hubs I would need to know the inner and outer bearing numbers stamped into the metal of the bearings or I would need measurements of the spindle to the thousandth of an inch.
To get the most accurate measurement you would need to use dial or digital calipers. I have included a picture that shows the measurements needed and where to measure on the spindle.
The issue is that on hubs with 5 on 4-1/2 bolt pattern for 15 inch wheels there could be 1 of 3 possible inner bearings and 1 of 2 possible outer bearings. To get it right the first time the bearing numbers or precise measurements will be needed.
Also, do you need just idler hubs or hub and drum assemblies.
Product Page this Question was Asked From
Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide
- Trailer Spindles
- Standard Spindle
- 1-1/2 Inch Diameter
- Square
- For 3500 lb Axle
- TruRyde
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