IPS IPS-41 S1 Gearbox 58T Spur Gear Only

The IPS 58T Spur Gear (Part No: 4460378) is the official replacement gear for the IPS-41 S1 Gearbox. Originally popularized for use with the "Indoor Power System" (IPS) brushed motors for park flyers and micro-aircraft, this gear is a critical maintenance item for pilots using small-scale geared power systems. It is supplied as the gear only, designed to be pressed onto the existing gearbox shaft.

Key Features:

• Precision 58-Tooth Count: Specifically matched to the IPS-41 S1 gear ratio to maintain factory-spec torque and RPM for micro propellers.
• Lightweight Composite: Molded from durable, low-friction plastic to minimize rotational mass while resisting the wear associated with high-speed brushed motors.
• Simple Replacement: Ideal for fixing "stripped" gears caused by propeller strikes or general drivetrain fatigue without needing to purchase a full gearbox assembly.
• Universal IPS Fit: While specifically labeled for the S1 gearbox, this gear is a standard component across the legacy IPS motor range used in early GWS-style micro flyers.

Technical Specifications:

Maintenance Tip:

When installing a new 58T Spur Gear, check the motor pinion gear for any debris or burrs. A damaged metal pinion will quickly shred a new plastic spur gear. Since these are "press-fit" gears, ensure the gearbox shaft is clean and free of oil before pressing the gear on; a tiny drop of CA glue (Super Glue) on the shaft can help prevent the gear from spinning under high-load maneuvers, but be careful not to let any glue seep into the gearbox bearings.