Dexter Trailer Hubs and Drums - 42866UC3
Dexter Axle 8 Bolt, 6.5" Bolt Circle Hub and Drum Assembly
- Used on Dexter 5,200 lbs thru 7,000 lbs Axles, Or on Spindles requiring a 2-1/8" or 2-1/4" I.D. Grease Seal
- Capacity of 3,500 lbs per each
- Drum Size: 12" x 2"
- Stud diameter: 1/2"
- Bolt Pattern: 8 on 6-1/2 (for information see below)
- Bearings, Races, Cap, and Seal are included
- 25580 Inner / 14125A Outer Bearings
- Assembly includes Seal with 2-1/4" I.D. For 2-1/8" I.D. seal use 10-1
How to Measure Bolt Pattern
The first number in the bolt pattern is the number of bolt holes. The second number is the diameter of the circle the holes sit on. To determine the diameter on wheels with an even number of bolt holes, measure center-to-center on bolt holes directly across from each other on the circle (Example: 8 on 6-1/2 would mean 8 bolt holes with 6-1/2" center-to-center diameter). When the number of bolt holes is odd, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from it on the circle (Example: 5 on 4-1/2 would mean 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolts).
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- Is There a Replacement Hub for My Mobile Home Axle
- In order to determine which hub will fit the spindle, you will either need the bearing numbers from the bearings from that spindle, or you can take some precise measurements on the different steps on the spindle using a dial caliper to get precise measurements.
Often times it is not possible to find replacement parts for mobile home axles as they are designed for one time use. In most cases replacement parts are simply not available. However, if you can find the bearing numbers or collect the
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- What is the Inner Diameter of Trailer Bearing # 25580 and Trailer Bearing # 14125A
- I went out to the warehouse and pulled bearing # 25580, and # 14125A, to measure them. Bearing # 25580 has an inner diameter of 1.74 inches. Bearing # 14125A has an inner diameter of 1.225 inches. I used digital dial calipers to take the measurements.
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- What Information is Needed to Pick Out the Correct Replacement Hub and Drum
- In order to determine which replacement hub and drum you would need to replace your current parts, you will need to either get the numbers that are stamped on your bearings, or you will need to get some precise measurements from your spindle.
The measurements you need will be where the seal and bearings ride. Check out the picture I attached to see which measurements are needed.
I attached a video on removing and reinstalling trailer hubs for you to check out also.
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- Trailer Wheel Pilot Hole Diameter is Too Small for New Hub and Drum Assemblies
- If the pilot hole on the wheel was larger than 4-3/4 inches, and the wheel is center on the hub using the lug nut rather than wheel bolts, it would not matter. But since the wheel pilot hole is smaller, you will not be able to use the hubs you purchased without also replacing the wheels.
I went out to the warehouse and measured a Trailer Hub and Drum Assembly, # 42866UC3, to determine the diameter of the center portion that goes through the pilot hole of the wheel. Using some digital dial cal
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