Trailer Hub & Drum Assembly - 3,500 lbs. Axles - 5 on 5-1/2

Dexter Trailer Hubs and Drums - 84557UC3

• Used on Dexter and Most 3,500 lbs Axles
• Capacity of 1,750 lbs per each
• Drum Size: 10" x 2-1/4"
• Bolt Pattern: 5 on 5-1/2 (for information see below)
• Bearings, Races, Cap, and Seal Included (L68149 Inner / L44649 Outer Bearings)

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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• Converting 3500 lb Axle from Idler Hubs to Electric Brakes
  
• The brake mounting flanges, whether they be 4 or 5 bolt, have a standard hole spacing to fit their appropriate brake assembly. No worries about the brake assembly matching with the existing one on your axle. A 3500 lb axle like what you have will use a 4 bolt flange. You will need to get the numbers that are stamped on your existing bearings, in order to confirm the fit of the # 84557UC3. Your current bearings will need to match the bearings of the replacement hub. The # 84557UC3 uses L68149
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