Single - 4-Bolt On 4 Inch Hub Assembly - Includes (1) 1-1/16 Inch Straight Spindle & Bearings Rigid
(Rigid Part #: RD-220044)
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Easily build your own axle with this 2,200 lb rated* hub assembly (*rated as a pair). This kit includes (1) - 4-Bolt on 4 inch bolt center hubs for 2,200 lb axles, (1) - 1-1/16" straight spindles, (1) castle nuts, (1) cotter pins, (4) 1/2-20 lug nuts, (1) 1.987" O.D - 1.249" I.D grease seals, (2) L-44649 1-1/16" I.D inner/outer bearings and (1) 1.986 O.D - 1.16" depth, dust caps.

  • PLEASE NOTE: Fabricating an axle requires the proper equipment needed to apply a weld. If you are uncomfortable with your welding capabilities, this project should be handled by a qualified welder.


Capacity2,200 lbs


  • 1-1/16" straight spindle includes castle nut and cotter pins.
  • Bearings included - (2) L-44649 1-1/16" inside dimension
  • Hub has pre-installed pressed in races
  • Hub has a 4-bolt pattern on 4" bolt circle. Pilot diameter 2-1/2", flange diameter 5.56" and measures 4-1/4" tall
  • Spindle features a ROUND 1-1/4" stock diameter with a bearing surface of 1-1/16 inch.

Rigid Hitch, Inc.

Rigid Hitch has been a manufacturer and distributor of trailer hitches, towing accessories, trailer parts and truck accessories for over 60 years. Located in Burnsville, Minnesota, this family-owned business produces a wide range of high quality products and was recently certified as conforming to ISO 9001:2015 standards.

The above information has been provided by the Manufacturer, and we cannot guarantee the accuracy thereof or endorse the opinions expressed.