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Anonymous Very solid pinion gear. I use it on my X-Maxx and with the D shape it locks on well. Highly recommend it.
Pinion Gear, 18T Mod1 Safe-D5: ARA310965
$14.99
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Pinion Gear, 18T Mod1 Safe-D5: ARA310965
$14.99
Heavy Duty Steel
Built for extreme RC bashing
Safe-D Profile
Prevents loss of drive control
5mm Shaft Bore
Fits standard high-power motors
In Stock
Durable Drivetrain PowerReliable gear performance under extreme loads
The 18T HD Mod1 Safe-D5 Pinion Gear is a heavy-duty drivetrain upgrade designed to handle extreme torque in high-performance RC cars. Constructed from high-strength steel, this Mod1 pinion gear provides dependable power transfer and longevity for high-speed off-road bashing.
Precision Engineered Drive GearMaximum gear mesh and secure motor shaft retention
Upgrade your vehicle's drive system with the precision-manufactured 18T HD Mod1 Safe-D5 Pinion Gear. Tailored specifically for 5mm motor shafts, this gear features a wide tooth profile for smoother mesh and reduced wear on your spur gear. The innovative 'D' shaped bore matches flat-profile motor shafts, ensuring you maintain drive acceleration and braking performance even if the M4 set screw loosens during hard impacts. Each package includes the Mod1 pinion gear, an M4 set screw, and a 3.2mm E-clip for secure shaft retention.
Technical SpecificationsEssential parameters and component hardware details
Part Type
Pinion Gear
Tooth Count
18T
Gear Pitch
Mod1
Shaft Diameter
5mm
Material
Hardened Steel
Placement/Position
Motor Shaft / Drivetrain
Compatible Shaft Profile
Safe-D / Flat-D Shaft
Included Hardware
M4 x 4mm Set Screw, 3.2mm E-Clip
Key Hardware FeaturesEngineered for maximum reliability and smooth mesh
MaterialTough Steel Construction
Tooth ProfilePrecision Wide Tooth Mesh
Shaft CompatibilitySuits 5mm Motor Shafts
Drive SecuritySafe-D Keyway Hole Design
Retention HardwareThreaded Set Screw Hole with E-Clip
PerformanceEngineered for Extreme RC Conditions
Frequently Asked QuestionsEverything you need to know
What motor shaft size fits the 18T HD Mod1 Safe-D5 Pinion Gear?
The 18T HD Mod1 Safe-D5 Pinion Gear is designed to fit standard 5mm motor shafts commonly found on 1/8 and heavy-duty 1/10 scale brushless motors.
How does the Safe-D feature on the 18T HD Mod1 Safe-D5 Pinion Gear protect my drivetrain?
The Safe-D 'D' shaped inner bore matches the flat section of your motor shaft. This ensures drive and braking torque are preserved even if the set screw backs out during intense running.
What hardware comes included with the 18T HD Mod1 Safe-D5 Pinion Gear?
The 18T HD Mod1 Safe-D5 Pinion Gear comes with one 18T Mod1 gear, one M4 x 4mm set screw, and one 3.2mm E-clip for shaft retention.