Single - 5-Bolt on 4-1/2 Inch Hub Assembly - Includes (1) Square Stock 1 Inch Straight Spindle & Bearings Rigid
(Rigid Part #: SQ-2000545)
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Easily build your own axle with this 2,000 lb rated* hub assembly (*rated as a pair). This kit includes (1) - 5-Bolt on 4-1/2 inch bolt center hub for 2,000 lb axles, (1) - 1" straight spindle, (1) castle nut, (1) cotter pin, (5) 1/2-20 lug nuts, (1) 1.987 O.D. - 1.249 I.D. grease seal, (2) L-44643 1" I.D. inner/outer bearings and (1) 1.986 O.D. - 1.16" depth, dust cap.

  • 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.


Capacity2,000 lbs


  • 1" straight spindle includes castle nut and cotter pin.
  • Bearings included - (2) L-44643 1" inside dimension.
  • Hub has pre-installed pressed in races.
  • Hub has a 5-bolt pattern on 4-1/2" bolt circle. Pilot diameter 2.59", flange diameter 6-1/2" and measures 4-1/4" tall.
  • Spindle features a SQUARE 1-1/2" stock diameter with a bearing surface of 1 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.