MUGEN MRX-5 Two-Piece Joint Shaft Set (spring steel) by Arrowmax AM-MRX5-H0273  [AM-MRX5-H0273]

Precision spring steel joint shaft

The Arrowmax AM-MRX5-H0273 joint shaft is offered as a two-piece RC-scale replacement, made from spring steel to retain its shape through repeated articulation. It is supplied for use with MUGEN MRX-5 universal drive assemblies as a direct replacement option.

Serving as the rotating pin within universal joints, the shaft preserves alignment and transfers drive loads between cups. Spring steel resists bending and fatigue better than softer materials, helping maintain consistent clearances in normal hobby use.

Installation is a direct swap into the model's universal assembly to replace worn or bent shafts. Verify the model's retaining method and seating before final assembly, and confirm unobstructed rotation after fitting. The item is sold as 2 pcs per pack to replace both sides of a drive set.