Align 250 3.5x7x2.5mm Bearing Set (MR74ZZ-D3.5) (2)

1.6mm One-Way Shaft Collars. These one-way bearing shaft collars improve main gear rotation efficiency and precision, reducing main gear vibrations and noise. For use with the T-REX 450 series helicopters. Includes: (2) ...

the Align 600 and 600N line of helicopters. These bearings fit into the both the washout and SF mixing arms. Package includes four 3x7x3mm 683ZZ bearings. This product was added to our ...

intended for use with the R-REX 450L but is suitable with other 450 series helicopters (see note below). This high torque power torque tube has extreme strength and is difficult to break. ...