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Rigid Hitch Incorporated Trailer Hub Kit (BT-100-F) 4 Bolt on 4 Inch Circle - Fits 1' and 1-1/16' Spindle

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$30.67

$ 13 .99 $13.99

In Stock

About this item

  • Complete assembly with bearings, seal, dust cap, cotter pin and lug nuts
  • Fits both 1" and 1-1/16" diameter straight spindles
  • Hub measures 4-1/4 inches tall (through center of hub)
  • 2,000 lb capacity - 1/2-20 thread - 4 bolt on 4 inch bolt circle



Product Description

Rigid Hitch Inc.

Our company opened for business in 1957 as a manufacturer of trailer hitches and has grown to become an ISO 9001:2015 certified company. Rigid Hitch is a family-owned manufacturer and warehouse distributor of trailer hitches, towing accessories, trailer parts, and truck accessories. Our corporate headquarters and main warehouse are located in Burnsville, Minnesota. We supply products to many businesses throughout the country including auto parts stores, hitch installation & welding shops, auto dealers, rental stores, and direct to consumer.

We are constantly adding new products online to keep up with our customers’ towing needs. Since finding the right item can be confusing at times, we have an amazing team of workers. Our employees get training throughout the year. Many employees on our CS team have extensive knowledge and have been with our company for several years. After placing your order, our warehouse team does their stuff which lets us get orders shipped out as soon as possible. In most cases orders are shipped the same day they are received. We look forward to helping you find what you need for your towing application!

4-Bolt Trailer Hub Assembly

4-Bolt Trailer Hub Assembly

This kit includes two sets of bearings. One set for trailers that are equipped with 1" straight spindles, or the other set for 1-1/16" straight spindles.

Bearing part numbers are (2) L44643 1" Inside diameter, (2) L44649 1-1/16" Inside diameter.

1.50 inch or 1.25 inch Grease Seals

Two Grease Seals

We also include two different size seals - 1.50" inside diameter or 1.25" inside diameter. Both seals are double lipped, spring loaded.

Make sure to measure your spindle surface to verify which one of the two you will be installing.

4-Bolt Trailer Hub

4-bolt hub

The front and rear races come preinstalled for ease of installation, saving you time and money! Lug diameter measure 1/2"-20.

Trailer Hub Dimensions

Trailer Hub Dimensions

This hub measures 4-1/4 inches tall (measured through the inside from top to bottom) which is a very common size on the market.


Ed Garvin
2025-08-15 12:47:39
packed very well and shipped very quick. everything fit perfectly and quality seems to be good. will definitely buy from them in the future,
Baker
2025-07-26 16:33:16
Very pleased with these hubs and bearings. Impressed with the quality. Packaging was great and included instructions. Installation was straight forward. In all honesty these could be priced much higher. Wheels now spin freely without wobble like the original harbor freight hubs. I have confidence now for highway trips (also upgrades the wheels).
DAVID C
2025-06-30 10:06:59
Love that they included two sets of bearings just in case. Excellent quality, would buy again.
Joe M
2025-06-26 16:38:05
I’ll update this in a year, but the hubs / seals / bearings all seem to be good quality. Would have been nice if there were a grease zerk on the backside of the hub, but no biggie. Everything went together great. On my particular install, I added bearing buddies and the fit was spot on.Edit - 6 months and still going strong.
Kelley Stickelmeyer
2025-06-13 11:15:22
Easy to install but the cap was thinner aluminum that dented during the install. Does the job though!
Customer
2025-03-19 11:28:01
This was an exact fit for my Harbor Freight trailer. Everything you need at a reasonable price.
LogDel
2025-03-06 12:29:19
This product was fantastic because it comes with 2 sets of bearings for either a 1 inch or 1 and sixteenth axle! I was super unsure if this would work out but it worked perfectly! It makes it adaptation to you project specifically and it saved me so much time! The new pins they provide are expredinarily long and I couldn't get the silver cap to go on no matter what I tried so I just used my old cap and it worked great!
Petalumadogman
2025-03-03 12:53:00
Was very happy with this product. The hub and accessories were exactly as described. Very good quality with excellent packaging (bearing sets were separated on separate cardboard tray with list of included parts right on the tray. Very nice! this was ordered when I had a problem receiving hubs on a previous order that got lost in delivery. ( from a different seller)
Stan Halat
2025-02-16 20:19:33
Very good hub, made very well and should last a long time!
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