--- product_id: 444465495 title: "SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 4 Pcs" brand: "smraza" price: "¥2929" currency: JPY in_stock: true reviews_count: 10 category: "Smraza" url: https://www.desertcart.jp/products/444465495-sg90-9g-micro-servo-motor-kit-metal-gear-for-arduino store_origin: JP region: Japan --- # 4.8-6V operating voltage range 0.08s/60° ultra-fast response Metal gears & shaft for durability SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 4 Pcs **Brand:** smraza **Price:** ¥2929 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your micro servo game with metal muscle and lightning speed! ## Quick Answers - **What is this?** SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 4 Pcs by smraza - **How much does it cost?** ¥2929 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/444465495-sg90-9g-micro-servo-motor-kit-metal-gear-for-arduino) ## Best For - smraza enthusiasts ## Why This Product - Trusted smraza brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Tiny 9g size fits perfectly in tight DIY builds without compromising power. - • **Unbreakable Metal Gears:** Say goodbye to plastic gear failures and hello to rugged reliability. - • **Lightning-Fast Precision:** 0.08 seconds per 60° for ultra-responsive control in every move. - • **Plug & Play Compatibility:** Seamlessly integrates with Arduino, Raspberry Pi, and JR/FUTABA receivers. - • **Torque That Packs a Punch:** 1.9 kg/cm stall torque powers your micro-robots and RC planes effortlessly. ## Overview The Smraza SG90 9G Micro Servo Motor Kit features durable metal gears and shaft to prevent common plastic gear failures, delivering a fast 0.08s/60° running speed and strong 1.9 kg/cm stall torque. Operating between 4.8V and 6V, it offers precise 180° motion control, perfect for Arduino, Raspberry Pi, and RC applications. This 4-pack is ideal for hobbyists and professionals seeking reliable, compact servos for micro-robots, RC planes, and DIY projects. ## Description desertcart.com: Smraza SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 4 Pcs | 180°, 1.9kg·cm torque @6V, 0.08s/60° speed, 4.8–6V,metal motor gear & metal shaft for RC Airplane Robot Arm DIY : Toys & Games Review: BUY THIS PRODUCT - Look, if you’ve spent any time in the hobbyist world, you know the heartbreak of hearing that crunch-grind-pop sound when a plastic-gear SG90 hits a snag. It’s the universal sound of a project going on hiatus. That’s why this Smraza 6-pack is basically the "adulting" version of the standard micro servo. It's cheap, it's tough, and it fixes the biggest flaw of the entry-level kits. Review: Nice tiny servos - This is a nice set of these small servos that work well for my proof of concept project. They aren't super powerful, but not advertised as such, but they'll do the job for a project you might be planning that needs many multiple servos to work. I hooked one up to a servo controller and it worked well and was very quiet. 180 degrees of movement which will work fine for my project ahead. If you need a bunch of little plastic geared servos, this is a great assortment that will give you 10 of them. I'm very satisfied with the purchase. Just as advertised. ## Features - Motor Pinion Gear & Shaft Upgraded to Metal — Our SG90 9g micro servo motor resists tooth breakage and heat deformation seen in plastic-gear units, ideal for micro robots, robot arms, RC helicopters and DIY builds using mini and small digital servos. - Quick 0.08s/60° Running Speed & 1.9 kg/cm Stall Torque,Operating Voltage: 4.8V-6.0V, across a full 180° range. Improved Dead Band: 5 µs. - Versatile Application — Works with fixed-wing and KT planes, gliders, micro-robots, robotic arms, small boats and compact RC mechanisms, delivering precise micro-servo motion for model builds. - Arduino/Raspberry Pi Ready — Simple 3-pin PWM hookup compatible with JR/FUTABA receivers. Includes servo arms and 24.5 mm leads for neat wiring in compact DIY and R/C toy builds. - Please Note — This SG90 servo requires a continuous PWM signal and a power supply capable of more than 1A starting current. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09Y55C21K | | Best Sellers Rank | #31,803 in Toys & Games ( See Top 100 in Toys & Games ) #19 in RC Servos | | Brand | Smraza | | Brand Name | Smraza | | Customer Reviews | 4.5 out of 5 stars 1,304 Reviews | | Item Dimensions W x H | 1.25"W x 1.18"H | | Item Highlight | 180°, 1.9kg·cm torque @6V, 0.08s/60° speed, 4.8–6V,metal motor gear & metal shaft for RC Airplane Robot Arm DIY | | Item Weight | 9 g | | Manufacturer | Smraza | | Material | Metal | | Material Type | Metal | | Model | S51-4-U-F | | Model Name | S51 | | Number of Items | 4 | | Part Number | S51-4-U-F | | Product Dimensions | 1.25"W x 1.18"H | | Shaft Diameter | 5 millimeters | | Speed | 7 rpm | | Voltage | 6 volts | ## Product Details - **Brand:** Smraza - **Model Name:** S51 - **Product Dimensions:** 1.25"W x 1.18"H - **Speed:** 7 rpm - **Voltage:** 6 volts ## Images ![SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 4 Pcs - Image 1](https://m.media-amazon.com/images/I/81k+Id2F7mL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can these be run at a higher pwm frequency than 50hz? ideally i'd like to run them at 200hz.** A: No need to think about that. These Micro Servos are not reliable. I had on fail (sticks) on me during preflight so I switched it from the elevator to rudder. Then on the next flight the elevator servo and one aileron servo failed in flight. Was lucky to get help from an experienced RC plane flyer who was helping me with the test flights. Will not buy again ## Customer Reviews ### ⭐⭐⭐⭐⭐ BUY THIS PRODUCT *by R***T on March 9, 2026* Look, if you’ve spent any time in the hobbyist world, you know the heartbreak of hearing that crunch-grind-pop sound when a plastic-gear SG90 hits a snag. It’s the universal sound of a project going on hiatus. That’s why this Smraza 6-pack is basically the "adulting" version of the standard micro servo. It's cheap, it's tough, and it fixes the biggest flaw of the entry-level kits. ### ⭐⭐⭐⭐⭐ Nice tiny servos *by S***H on October 5, 2024* This is a nice set of these small servos that work well for my proof of concept project. They aren't super powerful, but not advertised as such, but they'll do the job for a project you might be planning that needs many multiple servos to work. I hooked one up to a servo controller and it worked well and was very quiet. 180 degrees of movement which will work fine for my project ahead. If you need a bunch of little plastic geared servos, this is a great assortment that will give you 10 of them. I'm very satisfied with the purchase. Just as advertised. ### ⭐⭐⭐⭐⭐ 9G micro servos *by S***E on July 28, 2026* Great product, in a nice clear plastic container. All ready for my next project, and a few left over for spares. ## Frequently Bought Together - SG90 9G Micro Servo ：Metal Geared Servo Motor Kit for RC Robot Arm/Hand/Walking Helicopter Airplane Car Boat Control (4) - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - Arduino Uno REV3 [A000066] --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/444465495-sg90-9g-micro-servo-motor-kit-metal-gear-for-arduino](https://www.desertcart.jp/products/444465495-sg90-9g-micro-servo-motor-kit-metal-gear-for-arduino) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-10*