MG90S Servo 1/2/4/10/20/50 Pcs All Metal Gear 9g SG90 Upgraded Version Mini Servos for RC Helicopter Boat Car Arduino Project
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- ✅ Metal gears offer increased durability compared to plastic S
- ✅ High torque-to-size ratio for compact projects
- ✅ Universal compatibility with Arduino, Raspberry Pi, and stan
These MG90S micro-servos feature all-metal gears for superior durability in your RC vehicles and Arduino projects. They are a reliable choice for hobbyists and makers seeking long-lasting performance. Choose from various pack sizes to suit your specific building needs.
Over 5 days of daily tracking (since 8 Oct) the price ranged from $4.64 to $4.67. Today: $4.67.
- ⚠️ Limited torque capacity compared to standard-sized or high-voltage ser
- ⚠️ Potential for electrical noise or jitter if used with an unstable powe
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See reviews on AliExpress →🔍 In-depth analysis
This analysis is written with an AI model from the product data (name, category, price, rating and orders), not from a hands-on test. How we choose and score
The MG90S is a staple component in the world of DIY electronics and remote-controlled hobbies. Positioned as an upgraded version of the ubiquitous SG90, this micro-servo distinguishes itself by featuring all-metal gears. This design choice is intended to provide significantly better durability and resistance to stripping compared to plastic alternatives, making it a preferred choice for steering mechanisms in small RC cars, boats, and helicopters, as well as articulated joints in Arduino-based robotics.
With a massive volume of over four thousand orders and a consistently high buyer rating, this product has clearly established itself as a reliable workhorse in the maker community. The listing's flexibility, offering quantities ranging from single units to fifty-piece bulk packs, suggests it is aimed at both individual repair jobs and large-scale project builds. While it maintains the compact 9g form factor, the internal metal construction suggests a more robust performance profile for demanding hobbyist applications.
✅ Pros
- Metal gear construction provides superior longevity and impact resistance over plastic-geared models.
- High buyer satisfaction and a large number of successful orders indicate a proven track record of performance.
- Versatile application across various platforms including RC vehicles and microcontroller-driven DIY electronics.
- Bulk purchasing options allow for a lower cost-per-unit for those stocking up for multiple projects.
Cons and cautions
- The added weight of metal gears may be a factor in weight-sensitive applications like micro-drones.
- Technical specifications like exact torque and transit speed are not explicitly detailed in the primary listing.
- Budget micro-servos can sometimes exhibit centering inconsistencies or jitter under certain signals.
- Paid shipping to Israel: $2.43 (per the AliExpress shipping quote)
- 6 variants on one listing: price and spec change with the option you pick
Who it's for: This servo is ideal for RC hobbyists needing reliable steering for small vehicles and makers working on Arduino or Raspberry Pi projects. It is particularly suited for those who have previously experienced gear failure with standard plastic servos.
Who should skip it: It is not intended for heavy-duty industrial applications or large-scale RC models that require high-torque, full-sized servos. Users requiring specific waterproof ratings or precision certifications should look elsewhere or verify details first.
🔎 Check before you buy
- Confirm the exact stall torque and operating speed with the seller to ensure it meets your project requirements.
- Verify the operating voltage range, as micro-servos typically run between 4.8V and 6.0V.
- Ask the seller to confirm the dimensions and weight to ensure compatibility with your existing mounting brackets.
- Clarify if the 'all metal gears' claim includes the entire gear train or just the primary drive gears.
💡 Tips
- Always test each servo in a bulk pack individually using a servo tester or microcontroller before installing them into a complex build.
- If using multiple servos, ensure your power supply can handle the peak current draw to prevent 'brown-outs' in your controller.
- Apply a small amount of hobby-grade grease to the gears if you notice excessive noise during initial testing.
Questions about this product
Are these servos compatible with standard 3-pin RC receivers?
Do these come with the plastic arms and mounting screws?
Can these be used for a 3D printer auto-leveling probe?
❓ Questions & Answers
Does it ship to my country?
Are there customs or taxes?
How do I return an item if something is wrong?
Is the price final?
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