Will Changing From Idler Hub to Hub/Drum Change Wheel Offset
Question:
Ive got a 3500lb axle with hubs. No brakes. The square backing plate is there, so Im planning to add brakes, probably with your AKHD-545-35-EZ-K drum/hub, and the complimentary 10x2.5 electric brakes. My question relates to the positioning of the trailer wheels after I change my hub for a drum/hub. Am I likely to find the wheel in exactly the same spot width-wise where it is now? Ive only got about 1/2 of clearance between the trailer frame and the inner sidewall of the tire, so if drums/hubs are unpredictable in terms of width/offset, that might be a nasty surprise. Im hoping that my concern is unfounded, and this is a problem that was solved/standardized many decades ago... Thoughts?
asked by: Chris
Expert Reply:
I ran out to the warehouse and pulled one of the # AKHD-545-35-EZ-K hub/drums, which I compared with a typical idler hub with 5 on 4-1/2 inch bolt pattern for a 3500 lb axle. I found that with both hubs, the distance from the rear seal surface to the front face of the hub where the wheel would ride is 2-1/2 inches. Since I do not know which hub you are currently using, I checked a few other idler hubs, and found that the 2-1/2 inch distance or thickness was the same.
Long story short, your tire should ride in exactly the same spot it is now.
The # AKHD-545-35-EZ-K uses a L68149 inner bearing and a L44649 outer bearing. You will need to check your existing bearings and make sure the reference numbers match.
Product Page this Question was Asked From
Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles - 10" - 5 on 4-1/2 - Pre-Greased
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Easy Grease
- EZ Lube
- Pre-Greased
- L68149
- L44649
- For 3500 lbs Axles
- 1/2 Inch Stud
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
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