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Arrma (ARA)
SKU:ARA310964
17T Mod1 Safe-D5 Pinion Gear (ARA310964)
17T Mod1 Safe-D5 Pinion Gear (ARA310964)
Introducing the 17-tooth Mod1 Safe-D Pinion Gear, a rugged steel pinion designed to fit a 5mm motor shaft and drive the RC drivetrain by engaging the spur gear. This 17-tooth pinion is part of the Mod1 Safe-D line and is built to deliver dependable power transfer in demanding conditions. A D-shaped hole matches the shaft profile to keep the gear engaged even if the set screw backs out, reducing the risk of disengagement during aggressive driving.
The package includes the 17-tooth Mod1 Safe-D Pinion Gear, an M4 x 4mm set screw, and a 3.2mm E-clip for secure retention on the shaft. It features a wide tooth profile for smooth meshing, a precisely threaded set-screw hole, and rugged steel construction designed for long-lasting performance in extreme RC use. Sized for a 5mm motor shaft, it serves as a straightforward upgrade or replacement for compatible setups.
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Parts List
Product Manual
Product Manual

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Overview
The 17T Mod1 Safe-D Pinion Gear is a robust and essential component for any RC enthusiast. Made from tough steel, this pinion gear ensures durability and excellent performance under extreme conditions.
Designed with a precision-manufactured wide tooth profile, it provides smooth operation for your RC vehicle. The unique 'D' shaped hole is specifically crafted to fit snugly on the motor shaft, preventing any loss of drive or braking performance in case the set-screw backs out.
This pinion gear suits a 5mm motor shaft diameter and features a precision-threaded set-screw hole, enhancing its reliability further. Each package includes one 17T Mod1 Safe-D Pinion Gear, one M4 x 4mm set screw, and one 3.2mm E-clip for secure motor shaft pinion retention, making it a complete solution for your RC needs.
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, preventing drive loss if the set-screw backs out
- Compatible with 5mm motor shaft diameter
- Precision manufactured threaded set-screw hole
- E-clip included for motor shaft pinion retention
- Includes one 17T Mod1 Safe-D Pinion Gear, one M4 x 4mm set screw, and one 3.2mm E-clip
Needed to Complete
- Set Screw - M4 x 4mm
- E-Clip - 3.2mm
Specifications
- Product Name: 17T Mod1 Safe-D Pinion Gear
- Part Number: ARA310964
- Material: Steel
- Tooth Count: 17T
- Modulation: Mod1
- Shaft Compatibility: 5mm motor shaft diameter
- Includes: 1 x 17T Mod1 Safe-D Pinion Gear, 1 x Set Screw - M4 x 4mm, 1 x E-Clip - 3.2mm
- Features: Wide tooth profile, 'D' shaped hole, precision-manufactured threaded hole, strong and durable
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