Replacement 4 Lug Trailer Hub for a 1" Diameter Spindle
Updated 09/29/2025 | Published 09/03/2025
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Question:
Hello, I am trying to size the correct pre-greased hub kit for my trailer and hope you can help. The trailer is. 1976 Dilly trailer. The wheels are 8 inch, 4 bolts and have bearings L44643. The spindle is a 1” diameter, 3.5” long shaft with 3/4” threaded end that is 1” long. There is a 1.25” shoulder at the other end of the 1” shaft. I do have a diagram if that helps. Thank you.
asked by: Amy P
Expert Reply:
Hey Amy, thanks for all of the information. It sounds like your trailer has a BT8 Spindle, which uses a 1" diameter item # L44643 inner and outer bearing. The Trailer Idler Hub Assembly item # AKIHUB-440-2-1K you were looking at is exactly what you need. It has a 4 on 4 lug pattern and the inside space within the hub from the outside edges of the two races is 3-1/4". This is a pre-greased hub that comes ready to be installed on your trailer.
What happened to your trailer's hub?
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Product Page this Question was Asked From
Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44643 Bearings - Pre-Greased
- Trailer Hubs and Drums
- Idler Hub
- Pre-Greased
- Standard
- L44643 / L44643
- Standard Grade
- For 2000 lbs Axles
- 1/2 Inch Stud
- 4 on 4 Inch
- 8 Inch Wheel
- 10 Inch Wheel
- 12 Inch Wheel
- 13 Inch Wheel
- 14 Inch Wheel
- etrailer
more information >
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on Trailer Hubs and Drums
Jerred H.
9/29/2025
Hey Amy, did the Trailer Idler Hub Assembly work out for your trailer? I'm curious because it could help others with similar trailers find the right hub.