Nice Road 400 / Robus 400 Compatible Internal Motor Worm Gear (PMD1501R04.4610)

Nice Road 400 Worm Gear Spare Part | PMD1501R04.4610

Nice Road 400 internal motor worm gear is a critical component of the power transmission chain in sliding gate automation systems, transferring the motor's rotary motion to the gate mechanism. Compatible with Nice Road 400 and Robus 400 series motors, this part works directly coupled to the motor shaft, forming the first motion transfer point of the reduction group. This gear, featuring a worm (endless screw) geometry, delivers high torque transmission at low noise levels; thanks to this design, heat generation and mechanical vibration inside the motor housing are kept to a minimum. Under prolonged or intensive use conditions, failures such as wear, breakage, or tooth slippage cause irregular gate movement, abnormal motor noise, or complete loss of drive — symptoms that indicate the worm gear needs to be replaced.

Replacing this spare part is of INTERMEDIATE difficulty. Basic hand tools such as a screwdriver and Allen key set are sufficient for disassembling the motor housing and accessing the internal mechanism; however, correct alignment of the gear with the motor shaft and reduction group during installation is critical. A worm gear fitted on the wrong axis will wear out again quickly and may also damage the mating gear. It is therefore recommended to clean old grease residue from inside the motor before installation and to lubricate the new part with a suitable lithium-based grease as specified by the manufacturer. Users unfamiliar with the process are advised to seek authorized service support.

This product is a fully original (OEM) spare part manufactured by Nice S.p.A. Italy-based Nice S.p.A. has been among Europe's leading manufacturers of gate, garage, and barrier automation systems since 1993. As an original manufactured part, it meets the tolerance and durability values specified for the relevant motor model; unlike aftermarket or third-party products, it restores the system's factory performance and does not negatively affect its remaining mechanical lifespan.