Main Pulley 56T for Lepton Lex - Hirobo HI0304024  [HI0304024]

56T Pulley Details for Lepton Lex

This Hirobo HI0304024 main pulley is specified for the Lepton Lex family and carries a 56T tooth count as indicated in the part designation. Installed in the main drivetrain of scale RC helicopters, the pulley mates with the primary drive gear and influences gear ratio, mesh behaviour, and how loads pass through the transmission.

Installation notes: Before installing, check the mating spur and pinion for wear, ensure correct axial alignment and mesh clearance to avoid premature damage, and secure the pulley with the airframe's original fastening approach. Inspect adjacent bearings and shafts for any endplay that could affect engagement, and expect to fine-tune mesh and backlash after initial operation.

Tuning role: Altering the pulley tooth count changes the overall gear ratio and thus rotor RPM at a fixed motor speed; a 56T pulley is one component in balancing rotor characteristics with motor and ESC setup. When swapping pulley sizes, review tail drive and collective response as necessary.

Maintenance: Regularly examine tooth profiles for chips or deformation, keep the gear interface clean from grit, and replace the pulley if wear compromises mesh stability. Routine inspections before flight and after heavy use maintain predictable drivetrain performance.