This is a S280 Gearbox with 3.5:1 Gear Ratio and uses Ball Bearings.
For use with the Great Planes Park Flyers.
FEATURES: Designed for low noise and low maintenance, Park Flyer gearboxes used
with 280-sized motors get the maximum climbing power and flight
time from each mAh. A brass pinion gear is used for strength and
a nylon main gear for quiet, low friction operation.
Compatible with APC's light, durable Slo-Flyer Propellers
Precision ball bearings for all-out performance
Lightweight, fiber-reinforced, sealed gear case keeps out dust and
debris as well as resists damage.
INCLUDES: One assembled S280 gearbox 3.5:1 ratio
One brass 13 tooth pinion gear
Three 2x6mm self-tapping gearbox mounting screws
One mini tube of Thread Locker to secure pinion to the motor shaft
REQUIRES: Prop adapter 3mm shaft for APC propeller, use GPMQ4959.
Install pinion onto motor shaft, then into the gearbox
Assembly of unit onto the airplane
SPECS: Overall Length: 37mm (1.5")(back of motor shroud to front of case)
Overall Height: 35.8mm (1.4")(motor shroud and gear case)
Motor Shroud Inner Diameter: 24mm (.9")
Gear Case Outer Diameter: 30.5mm (1.2")
Mounting Hole Flanges On-Center: 33.3mm (1.3")(three, evenly spaced)
Shaft Length: 7.3mm (.3")
Shaft Diameter: 3mm (.12")
COMMENTS: For T-280 motor, use GPMG0300.