Mugen MTX-5 Thrust Bearing Stopper (spring steel) by Arrowmax AM-MTX-T2707  [AM-MTX-T2707]

Thrust Bearing Stopper for MTX-5

This Arrowmax AM-MTX-T2707 Thrust Bearing Stopper is an RC-scale replacement part intended for Mugen MTX-5 drivetrains, manufactured in spring steel to hold thrust bearings in place during assembly and setup. The piece is a simple mechanical retainer used where axial positioning of a thrust bearing is required to maintain alignment under changing gear lash or bearing preload.

Installation typically involves brief disassembly of the gearbox or differential housing to access the thrust bearing location, sliding the stopper into the bearing seat, and reassembling with original fasteners. Use standard hobby hex drivers and basic hand tools; no special jigs are required. The stopper's spring steel profile provides a slight spring action to keep the bearing seated while allowing easy removal for servicing.

For tuning and maintenance, this stopper helps prevent thrust bearings from shifting when you adjust gear mesh, replace bearings, or swap motor and gearbox components. It is supplied as an RC-scale spare part and should be inspected when changing bearing types or during routine drivetrain checks.