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Arrma (ARA)
SKU:ARA311038
18T Mod1 Safe-D8 Pinion Gear (ARA311038)
18T Mod1 Safe-D8 Pinion Gear (ARA311038)
The 18T Mod1 Safe-D8 Pinion Gear is a rugged steel pinion for RC car gearboxes, designed to transfer power from the motor to the drivetrain with reliable, long-lasting performance. Its 18-tooth count and Mod1 Safe-D8 design offer smooth engagement in demanding RC conditions.
Built from durable steel with a wide tooth profile for smooth meshing, this pinion features a D-shaped bore that aligns with the motor shaft to help keep the gear engaged even if the set screw backs out. It fits 8mm motor shafts, and the package includes the pinion along with a set screw and an E-clip to secure it in place.
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Exploded View
Parts List
Parts List
Product Manual
Product Manual

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Overview
The 18T Mod1 Safe-D8 Pinion Gear is a robust steel component designed to enhance the performance of your RC setup. This pinion gear is an essential addition to any RC toolbox, ensuring reliable operation even in the toughest conditions.
This product includes one 18T Mod1 Safe-D Pinion Gear suitable for an 8mm motor shaft, along with a set screw (M4 x 4mm) and an E-Clip (5.6mm). The design features a precision-manufactured wide tooth profile that guarantees smooth operation and efficient power transfer.
Key features include a strong and durable steel construction for long-lasting performance under extreme conditions, a 'D' shaped hole that fits snugly on the motor shaft to prevent drive and brake loss if the set screw loosens, compatibility with 8mm motor shaft diameters, a precision-threaded set screw hole, and an E-clip to secure the pinion to the motor shaft.
Features
- Strong and durable steel construction for long-lasting performance in extreme RC conditions
- Precision manufactured wide tooth profile for smooth operation
- 'D' shaped hole design to match motor shaft profile and prevent drive and brake loss if the set screw backs out
- Compatible with 8mm motor shaft diameter
- Precision threaded set-screw hole for secure fastening
- E-clip supplied for motor shaft pinion retention
Needed to Complete
- Set Screw - M4 x 4mm
- E-Clip - 5.6mm
Specifications
- Product Name: 18T Mod1 Safe-D8 Pinion Gear
- Model Number: ARA311038
- Material: Steel
- Teeth Count: 18T
- Shaft Compatibility: 8mm Motor Shaft
- Includes: 1 x 18T Mod1 Safe-D Pinion Gear, 1 x Set Screw (M4 x 4mm), 1 x E-Clip (5.6mm)
- Features: Precision manufactured, strong and durable, smooth operation, 'D' shaped hole, precision threaded set screw hole, E-clip for retention
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