Nice M4BAR / M5BAR / M7BAR / L9BAR Compatible Inner Plastic Gear (Polyamide)

Plastic Gear Spare Part for Nice M-L BAR Series Barrier — PPD2427R01.4540

The Nice M-L BAR inner plastic gear (PPD2427R01.4540) is a critical transmission component in the torque transfer mechanism of Nice M4BAR, M5BAR, M7BAR, and L9BAR heavy-duty barrier models. This gear regulates the rotational motion transmitted from the motor to the barrier arm, ensuring smooth operation of the barrier system. Made from Polyamide (PA), this inner gear offers long-lasting performance under intensive cycle conditions thanks to its high friction resistance and mechanical durability. A worn or broken gear can cause the barrier to fail to raise its arm, operate with vibration, or stop completely; therefore, it must be replaced promptly when symptoms such as mechanical noise, unintended movement, or failure to lift the arm are detected.

Replacing this spare part is of INTERMEDIATE difficulty. It requires removing the mechanical cover of the motor, extracting the old gear from the shafts, and correctly seating the new gear in proper axial alignment, which demands a certain level of mechanical knowledge and experience. Incorrect alignment of the gear may cause damage to other transmission components; therefore, it is recommended to pay close attention to the correct positioning of the gear seating slots and axial alignment during installation.

PPD2427R01.4540 is an original OEM spare part manufactured by Nice S.p.A. and approved to factory standards. Italy-based Nice S.p.A. is among Europe's leading manufacturers in the field of automatic door and barrier systems. The use of original parts directly affects the barrier's ability to maintain factory performance, the validity of the warranty coverage, and long-term system reliability; therefore, it is critically important to prefer original Nice spare parts over aftermarket alternatives.