Overview
Upgrade your brushless setup with the Hot Racing 32-Pitch 19-Tooth Hardened Steel Pinion Gear. Machined from heat-treated 4140 steel and finished in clean black, this pinion is engineered specifically to handle the high torque and RPM of brushless motor systems — exactly where stock aluminum or soft-steel pinions tend to wear, strip, or shed teeth.
The heavy-duty 4mm set screw is the key durability detail: standard 3mm set screws are prone to stripping under brushless torque, but the larger 4mm screw locks down rock-solid and stays put run after run. A simple, essential upgrade for any brushless build.
Key Features
- Standard 4140 steel construction with heat-treat
- Heavy-duty 4mm set screw for brushless power
- 32-pitch tooth profile
- 1/8-inch (3.175mm) bore
- 19-tooth count
Performance Benefits
- Survives the torque of brushless motor upgrades
- 4mm set screw eliminates the stripping common with 3mm screws
- Long service life under hard driving
- Consistent power transfer through the drivetrain
Usage Notes
Apply medium thread-locker to the set screw during installation. Verify gear mesh by spinning the drivetrain by hand — there should be a slight backlash with no binding. Re-check set-screw torque after the first run.
Technical Specs
- Material: Standard 4140 steel, heat-treated
- Pitch: 32 pitch
- Tooth Count: 19T
- Inner Diameter (Bore): 1/8" (3.175mm)
- Length: 10.50mm
- Tooth Width: 5mm
- Set Screw: 4mm (heavy-duty)
What's Included
- One (1) 32-pitch 19-tooth pinion gear
- One (1) 4mm set screw
Fitment
- 1/10 scale brushless setups using 32-pitch pinion gears
- Compatible with motor shafts featuring 1/8" (3.175mm) diameter
Summary
The Hot Racing 32-Pitch 19-Tooth Hardened Steel Pinion Gear is the right pinion choice for any brushless build. Heat-treated steel construction and a heavy-duty 4mm set screw deliver the strength and reliability brushless power demands.
