The ARRMA ARA310998 Safe-D5 pinion gear is a tough, steel 15-tooth 0.8 module replacement part featuring a D-shaped bore, set screw and E-clip for secure, smooth power transfer in demanding RC applications.
Key features of the ARRMA ARA310998 Safe-D5 Pinion Gear
- Steel construction – strong and durable for long-term performance under extreme RC conditions
- Wide tooth profile – precision-machined for smooth mesh and reliable drivetrain operation
- D-shaped slope hole – secures the gear on a 5 mm motor shaft even if the set screw loosens
- Includes set screw (M4 × 4 mm) and E-clip (3.2 mm) – all needed for secure assembly
- Suitable for 5 mm motor shafts – fits a wide range of ARRMA models
Whether you're bashing, racing, or crawling, the ARA310998 delivers consistent drive by combining robust steel construction with smart design features like the Safe-D5 profile. Its wide tooth form ensures smooth gear engagement, and the D-shaped bore gives added security over traditional round holes.
Why choose the ARA310998 for high-stress RC use?
With its steel build, the ARA310998 resists deformation and wear better than standard aluminium or plastic gears. The Safe-D5 design prevents slippage even under high torque—making it ideal for fast off-road runs and aggressive throttle use.
Is the gear easy to install and maintain?
Yes. The pinion includes all necessary hardware—set screw and E-clip—and installs easily onto a standard 5 mm motor shaft. Regular fittings retain their tight alignment thanks to the D-shape, while the wide tooth design handles dirt and debris better than narrower profiles.
Which ARRMA models is the ARA310998 compatible with?
This pinion gear is compatible with many 1/10 ARRMA models that use 0.8 module gearing and 5 mm motor shafts. It’s a reliable replacement or upgrade for maintaining drivetrain integrity across various RTR and brushless platforms.
For RC drivers demanding **affordable** upgrades that stand up to extreme use, the ARRMA ARA310998 Safe-D5 pinion gear offers unbeatable value. When comparing durability and smooth operation, this is the **best ARRMA ARA310998 Safe-D5 pinion gear** choice. Buy ARRMA ARA310998 pinion gear today for enhanced drivetrain strength and reliability.
Brand, Model & Product Type
Brand, Model & Product Type
- Brand: ARRMA
- Model: ARA310998
- Product Type: ARRMA ARA310998 Safe-D5 pinion gear, ARRMA 15T 0.8Mod steel pinion, ARRMA ARA310998 drive gear, ARRMA Safe-D5 pinion 5 mm bore
Material & Build
- Material: Steel – offers exceptional resilience under high torque
- Bore Type: Safe-D5 (D-shaped) – prevents drive loss if set screw loosens
- Tooth Module: 0.8 Mod with wide tooth profile – ensures smoother power delivery
- Finish: Natural steel – industrial look with high durability
Included Components
- 1 × 15-tooth 0.8 Mod Safe-D5 pinion gear
- 1 × Set screw (M4 × 4 mm)
- 1 × E-clip (3.2 mm) for motor shaft retention
Compatibility
- Designed for 5 mm motor shafts
- Compatible with many 1/10 ARRMA models using 0.8 Mod gearing (e.g., Kraton, Senton, Granite, Big Rock, Typhon)
Performance
- Wide tooth profile reduces mesh wear and extends gear life
- Steel construction maintains alignment under heavy load
- Safe-D5 design enhances retention over round bore designs
- Complete kit with hardware simplifies installation
Installation & Maintenance
- Easy installation using basic hex tools
- Check set screw and clip periodically for secure fit
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
