Dexter 8-393-4UC3 Complete Grease Hub and Drum Assembly - 8 on 6.5 - 9/16 Inch Stud - 12.25 x 2.5 Inch Drum - 4 Bolt Flange
Dexter 8-393-4UC3 Complete Grease Hub and Drum Assembly - 8 on 6.5 - 9/16 Inch Stud - 12.25 x 2.5 Inch Drum - 4 Bolt Flange
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Dexter 8-393-4UC3 Complete Grease Hub and Drum Assembly - 8 on 6.5 - 9/16 Inch Stud - 12.25 x 2.5 Inch Drum - 4 Bolt Flange
This hub-and-drum assembly fits most 7,200-lb, axles manufactured after 1999, with a 4-bolt brake flange. Inner bearing (25580) and race, outer bearing (02475) and race, grease seal, grease cap, wheel bolts, and lug nuts included.
Product Features
- Trailer hub-and-drum assembly provides surface area for brake shoes to grip when brake is activated
- Compatible with electric and hydraulic drum brakes
- Sturdy iron construction
- Bearings, races, grease seal, grease cap, wheel bolts, and lug nuts are included
- Hub and drum are made in the USA
Product Specifications
- Application: 7,200-lb trailer axles manufactured after 1999
- Uses 4-bolt brake flange
- Wheel size: 16" to 17-1/2"
- Drum dimensions: 12-1/4" diameter x 2-1/2" wide
- Works with 12-1/4" brake assembly
- Bolt pattern: 8 on 6-1/2"
- Grease cap flange diameter: 2.72"
- Wheel bolt diameter: 9/16"
- Weight capacity: 3,600 lbs per hub
Bearing, Race, & Seal Information
- Bearings (included)
- Inner bearing: 25580 (1.75" inner diameter)
- Outer bearing: 02475 (1.25" inner diameter)
- Races (included)
- Inner race: 25520
- Outer race: 02420
- Grease seal (included): RG06-070
Dexter Trailer Hubs and Drums - 8-393-4UC3
- 8 on 6-1/2 Inch
- For 7200 lbs Axles
- Hub with Integrated Drum
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- Standard
- 9/16 Inch Stud
- 02475
- 25580
- Dexter
Prop. 65 Warning for California Residents
WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Determining the Bolt Pattern
The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.
On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)
To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)
Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.
- If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
- If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
- If D = 3", then the bolt pattern is 5 on 5"
- If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"
