ARRMA Pinion Gear 39T Mod1 Safe-D5 ARA311134 Medium Tough Steel RC Motor Gear with 5mm Shaft Bore
Why you'll like it
- Secure Drive Retention — Features a D-shaped 5mm bore hole that prevents total loss of drive and braking if the set screw loosens during operation.
- Extreme Durability — Constructed from tough, high-grade steel built to withstand rigorous high-power RC conditions.
- Smooth Power Delivery — Precision-manufactured wide tooth Mod1 profile ensures optimal meshing and efficient power transfer.
- Complete Hardware Included — Comes with an M4 x 4mm set screw and a 3.2mm E-clip for secure and reliable motor shaft retention.
Product details
Description
Engineered for extreme remote-control conditions, the ARRMA Pinion Gear 39T Mod1 Safe-D5 ARA311134 delivers rugged durability and reliable power transfer for high-performance 1/8 and 1/10 scale RC vehicles. Crafted from strong, high-grade steel, this gear features a precision-manufactured wide tooth profile designed for smooth operation and long-lasting resilience.
Its innovative D-shaped bore hole securely matches the 5mm motor shaft profile, ensuring you never lose drive or braking capability even if the set screw backs out during intense runs. Complete with a threaded set-screw hole, M4 x 4mm set screw, and an E-clip retainer for secure shaft installation, this essential hobby tool box accessory keeps your RC machine running at peak performance.
How to use
- Read the entire instruction manual before installation.
- Slide the 39T Mod1 Safe-D5 pinion gear onto a compatible 5mm motor shaft, aligning the D-shaped hole with the shaft profile.
- Secure the gear using the provided M4 x 4mm set screw and 3.2mm E-clip retainer.
- Ensure proper mesh with the spur gear before operating your RC vehicle.
Ingredients
High-grade hardened alloy steel, precision-machined metal components
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | ARRMA |
|---|---|
| EAN | 5052127043335 |
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
FAQs
What motor shaft size does the ARRMA 39T Mod1 Safe-D5 Pinion Gear fit?
This pinion gear is specifically designed to fit 5mm motor shaft diameters on high-performance 1/8 and 1/10 scale RC vehicles.
What is the advantage of the Safe-D5 design?
The D-shaped bore hole keys directly into the motor shaft profile, ensuring that your vehicle maintains drive and braking control even if the set-screw happens to back out during intensive driving.
What components are included in the package?
The package includes one 39T Mod1 Safe-D5 pinion gear, one M4 x 4mm set screw, and one 3.2mm E-clip for secure shaft retention.
Are these authentic USA-imported ARRMA hobby parts available in India?
Yes, Dropy sources 100% authentic USA-imported ARRMA parts directly to ensure genuine quality and performance for Indian hobbyists.
What tooth count and pitch does this gear feature?
This gear features 39 teeth (39T) with a Mod1 wide tooth pitch configuration for smooth and efficient power transmission.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.