Overview
The Hot Racing 19T 0.5 Mod Hardened Steel Pinion Gear is a precision-machined replacement pinion gear designed to deliver dependable, high-strength power transfer in 0.5 module gear systems. With its hardened steel construction and blackened finish, this pinion stands up to the heat, torque, and abuse of demanding RC drivetrains far better than soft factory pinions.
The 19-tooth count provides a balanced ratio for general-purpose driving — a great middle-ground choice for tuners running 0.5 module spur gears who want consistent acceleration and strong top-end without going to extremes. The 1/8-inch (3.2mm) bore makes it ideal for use with motors using a 3.2mm output shaft, including the popular Hot Racing CSG182R08 motor.
Key Features
- Hardened steel construction with blackened finish
- 0.5 module (Mod) tooth profile
- 19-tooth count for balanced acceleration and top speed
- 1/8-inch (3.2mm) bore — fits 3.2mm motor shafts
- Includes 3mm set screw for secure mounting
Performance Benefits
- Far stronger and more durable than soft stock pinions
- Precision-cut teeth for smoother gear mesh
- Long service life under sustained drivetrain loads
- Resists wear, heat, and stripping
Usage Notes
Designed for use with motors having a 2mm-class output shaft — specifically intended for the Hot Racing CSG182R08 motor (which uses a 3.2mm/1/8" effective bore). Verify the spur gear pitch is also 0.5 Mod before installation. Apply removable thread-locker to the set screw and check gear mesh by hand before powering on.
Technical Specs
- Material: Hardened steel, blackened finish
- Number of Teeth: 19
- Bore Diameter: 1/8 inch (3.2mm)
- Gear Pitch: 0.5 Mod
- Length: 0.35 in (8.9mm)
- Tooth Face Width: 0.20 in (5mm)
- Hub Outer Diameter: 0.32 in (8mm)
What's Included
- One (1) 19T 0.5 Mod pinion gear
- One (1) 3mm set screw
Fitment
- Hot Racing CSG182R08 motor and other motors with a 3.2mm (1/8") output shaft
- RC drivetrains using a 0.5 Mod spur gear
Summary
The Hot Racing 19T 0.5 Mod Hardened Steel Pinion Gear is a tough, precision-built replacement pinion for any 0.5 Mod RC drivetrain using a 3.2mm motor shaft. Stronger, smoother, and longer-lasting than stock pinions — the right choice for serious drivers.
