Overview
The ARRMA 19T 0.8Mod Safe-D5 Pinion Gear is an essential component for RC enthusiasts looking to maintain peak performance in their ARRMA electric RC vehicles. Whether you're a serious competitor, a weekend basher, or someone who enjoys high-speed RC car runs across the UK, having spare pinion gears in your RC tool box is crucial for uninterrupted fun and racing. This tough steel pinion gear is engineered to deliver reliability and consistent performance, even in extreme RC conditions where durability is paramount.
Precision manufactured to exacting standards, the 19T 0.8 Module Safe-D pinion gear represents a genuine ARRMA replacement part designed to work seamlessly with compatible ARRMA electric drive systems. The Safe-D5 design features a distinctive D-shaped bore that matches your motor shaft profile, ensuring secure power delivery and braking without the risk of losing drive or stopping ability if the set-screw accidentally backs out during aggressive driving or racing. This innovative safety feature gives you peace of mind during those high-intensity RC sessions.
If you're running an ARRMA RC car and need a reliable replacement pinion gear, this component offers the perfect balance of durability, precision engineering and safety features that serious RC enthusiasts demand.
Key Features
- Strong and Durable Steel Construction — This pinion gear is manufactured from high-quality steel that stands up to extreme RC conditions, delivering long-lasting performance whether you're bashing on rough terrain or competing at race events across the UK.
- Precision Manufactured Wide Tooth Profile — The carefully engineered tooth profile ensures smooth operation and efficient power transfer from your motor to the main gear, reducing noise and wear whilst maintaining consistent performance.
- Safe-D5 D-Shaped Bore Design — The distinctive D-shaped hole matches your motor shaft profile, providing a critical safety benefit: if the set-screw ever backs out during driving, you won't lose drive or braking ability, keeping your RC car under control.
- Compatible with 5mm Motor Shafts — Designed specifically for 5mm diameter motor shafts, this pinion gear fits directly onto compatible ARRMA electric motors without modification.
- Precision Threaded Set-Screw Hole — The accurately manufactured threaded hole accepts the included M4 x 4mm set-screw, allowing secure fastening and adjustment to your specific setup requirements.
- E-Clip Included for Motor Shaft Retention — The supplied 3.2mm E-clip provides an additional retention method, ensuring the pinion gear stays firmly in place on your motor shaft during high-speed driving or racing.
Technical Performance
The ARRMA 19T 0.8Mod Safe-D5 Pinion Gear delivers exceptional engineering quality that you'd expect from ARRMA, a brand trusted by RC enthusiasts across the UK and worldwide. With 19 teeth and a 0.8 Module specification, this pinion gear works in conjunction with your main spur gear to provide the correct gear ratio for your ARRMA vehicle. The 0.8 Module gear pitch ensures compatibility with other 0.8 Module ARRMA components in your drivetrain, maintaining smooth mesh and optimal power transfer. The precision manufacturing of the wide tooth profile minimises backlash and vibration, resulting in crisp acceleration response and efficient energy delivery from your brushless motor system. The steel construction provides superior strength compared to alternatives, making it ideal for high-torque applications and extended use in demanding RC conditions. Whether you're running on tarmac, gravel, grass or mixed terrain with your RC car, this pinion gear delivers the durability and performance needed for countless hours of reliable operation.
What's in the Box
- 1 x 19T 0.8 Module Safe-D5 Pinion Gear
- 1 x Set Screw - M4 x 4mm
- 1 x E-Clip - 3.2mm
Frequently Asked Questions
- What is a pinion gear and why do I need a spare? — A pinion gear is a small gear that mounts directly on your motor shaft and meshes with the larger spur gear in your transmission. Pinion gears experience constant engagement during driving and can wear or break under heavy use, especially during competitive racing or aggressive bashing. Having a spare pinion gear in your RC tool box ensures you can quickly swap it out and get back to driving without downtime, making it an essential component for any serious RC enthusiast in the UK.
- What does the Safe-D5 design mean? — Safe-D5 refers to the D-shaped bore (D5 indicates a 5mm shaft diameter) that matches your motor shaft profile. This design provides a critical safety advantage: if your set-screw backs out during driving, the D-shaped hole keeps the gear engaged with the shaft, so you won't lose drive or braking ability and your RC car stays controllable.
- Will this pinion gear fit my ARRMA RC car? — This 19T 0.8 Module Safe-D5 pinion gear is compatible with ARRMA electric vehicles that use 5mm motor shafts and 0.8 Module gear systems. We recommend checking your specific vehicle's manual or contacting our expert team to confirm compatibility before purchasing.
- What is the difference between a 19T and other tooth count options? — The tooth count determines your vehicle's gear ratio. A 19T pinion gear with a given spur gear creates a specific ratio that affects your top speed, acceleration and torque characteristics. Lower tooth counts (fewer teeth) increase top speed but reduce torque, whilst higher tooth counts provide more torque but lower top speed. The 19T offers a balanced performance profile suitable for various driving styles and conditions.
- How do I install this pinion gear? — Slide the Safe-D5 bore onto your motor shaft, ensuring the D-shaped hole aligns with the D-shaped section of your motor shaft. Insert the M4 x 4mm set-screw through the threaded hole and tighten to secure the gear. Install the supplied 3.2mm E-clip onto the motor shaft for additional retention. Ensure the gear is firmly seated and all fasteners are secure before operating your RC vehicle.
- Is this genuine ARRMA? — Yes, this is an authentic ARRMA part manufactured to the brand's exact specifications. The part number Z-ARA311002 and EAN 5052127037884 confirm this is a genuine replacement component, ensuring perfect compatibility and the quality standards you expect from ARRMA.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ARRMA 19T 0.8Mod Safe-D5 Pinion Gear Z-ARA311002 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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