Dexter Trailer Hubs and Drums - 34822545BX
Trailer Hub Assembly
- Capacity of 1,250 lbs per each
- 5-1/2" Diameter Hub Flange, for use with 8" to 10" Wheels
- Bolt Pattern: 5 on 4-1/2 (for information see below)
- Bearings (L44643 Inner/Outer), Races, Cap (1.986"), and Seal Included
- Inner bearing dimension is 1.00"
- Inner seal dimension is 1.249"
- Dexter #8-259 - should be stamped on back of hub
Please Note: Some axles rated at 2,000 lbs require a different seal and bearings. Be sure that the bearings in the hub being replaced have L44643 stamped on them. If the bearings have L44649 stamped on them, use #8-259-5UC1 trailer hub.
Note: Most trailer tires that are smaller than 15" and have 5 bolts, have a 5 on 4-1/2" bolt pattern.
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).
AND / OR
The distance between the center of one bolt hole on the wheel to the center of the bolt hole right next to it will also help determine the bolt pattern.
- If D = 2-5/8" then the bolt pattern is a 5 on 4-1/2
- If D = 2-3/4" then the bolt pattern is a 5 on 4-3/4
- If D = 3" then the bolt pattern is a 5 on 5
- If D = 3-1/4" then the bolt pattern is a 5 on 5-1/2
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- Trailer Hub Assembly Must be Put Together and Packed with Grease
- The trailer hub assembly, part number, 34822545BX, comes with the race attached to the hub. The seal and bearings are not attached. Those parts must be assembled and packed with grease prior to installing the cap. I have attached a FAQ sheet for wheel bearings and two videos for your review.
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- Which Spindles Will Work with the Trailer Hub Assembly for 2,000 lbs Axles
- You can use any of three spindles with the Trailer Hub Assembly - 2,000 lbs Axles - 5 on 4-1/2, item # 34822545BX. I have listed these spindles below. The main difference in these spindles is the mounting dimensions on the inboard end of the spindles. the bearing seal and threaded portions of the spindles are all the same.
Spindle 1.25 inch RD x 4 inch STUB Item, # R104BT8
Spindle 1-1/2 inch Square x 4 inch Long Stub, for 2,000 lb. Trailer Axles, Item # SP204BT8
Spindle 1.38 inch RD x 4 inc
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- How to Determine The Correct Replacement Trailer Hubs by Bearing Numbers or Spindle Size
- The best way to determine which replacement hubs you need for your trailer would be to remove one of the hubs and retrieve the bearings. Find the numbers stamped into the bearings and with those we will be able to get you the correct hubs.
If you are unable to retrieve the bearing numbers, you can take measurements of the spindle. I have included a link to our spindle main page. At the top of the page is a diagram showing all of the measurements we would need to find the correct hubs and bea
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