{"product_id":"25t-28t-servo-arm-part-double-head-round-type-steering-gear-set-accessories-for-emax-jx-spt-dspower-hd-20kg-30kg-rc-helicopter","title":"Servo Arm Set 25T 28T Double Head Round Steering Gear for RC Helicopter","description":"\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25T Horn Gear Spline\u003c\/strong\u003e — The set includes a 25T horn gear spline option for matching standard servo horns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Arm Sizes\u003c\/strong\u003e — The set covers a range of arm sizes, including 30*8mm, 21*5.8mm, 31*5.8mm and 56*8mm arms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Assortment\u003c\/strong\u003e — The kit includes M2.5*14 and M3*5 screws for attaching the arms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlastic Construction\u003c\/strong\u003e — The arms are made of plastic, with a PC plastic type noted for the set.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlastic Type:\u003c\/strong\u003e PC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorn Gear Spline:\u003c\/strong\u003e 25T and 28T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge Range:\u003c\/strong\u003e 14+y\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e No battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Control Peripherals\/Devices:\u003c\/strong\u003e Servos\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat It Is \/ How It Works\u003c\/h3\u003e\n\u003cp\u003eThis servo arm set is a kit of replacement and spare steering gear arms for RC helicopter servos. The set is described as a double head round type servo arm part, with 25T and 28T horn gear spline options, a range of arm sizes, and matching screws. The About details note it is suitable for Emax JX SPT DSPOWER HD 20kg and 30kg servos, along with standard steering engines from other brands.\u003c\/p\u003e\n\u003ch3\u003eWho It's For \/ Use Cases\u003c\/h3\u003e\n\u003cp\u003eHobbyists who fly and maintain RC helicopters often keep spare servo arms on hand when a steering linkage needs replacing or a different arm length is needed for a build. Builders who swap horns or test different linkage geometry tend to look for a range of arm sizes and matching screws in one kit, which is the type of assortment this set provides.\u003c\/p\u003e\n\u003ch3\u003eHow to Use \/ Care\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUse these servo arm parts as servo arm accessories for RC helicopter steering gear, the use named in the product title.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eHow to Choose\u003c\/h3\u003e\n\u003cp\u003eStart with the spline count on the servo horn you already have, then choose the 25T or 28T option that matches it. Next, look at the arm length you need for your linkage, since this set includes many lengths from short arms around 10.6*3mm to longer arms such as 56*8mm. Finally, check that the screw sizes, such as M2.5*14 and M3*5, suit the holes on your servo and arm. Matching these three points helps you pick the right parts for the job.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this set include batteries?\u003c\/strong\u003e\u003cbr\u003eNo. The set does not include batteries, and its power entry is No battery. It is made for servo arm use in RC helicopters, so plan to power your servo through your existing receiver setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich horn gear spline sizes are offered?\u003c\/strong\u003e\u003cbr\u003eThe set offers 25T and 28T horn gear spline options. Check the spline count on your servo horn before you choose the matching option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat arm sizes are in the set?\u003c\/strong\u003e\u003cbr\u003eThe set includes arms from 10.6*3mm up to 56*8mm, including 30*8mm, 21*5.8mm, 31*5.8mm, 56*8mm, 24.3*6mm, 21.4*6mm, 26*5.2mm, 38.6*6mm, 45*6mm, 19.7*4.2mm, 32*4.2mm, 34.5*4.2mm, 17.5*4mm, 28.8*4mm, 16*3.3mm, 17*3.3mm and 27*3.3mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich screws come with the set?\u003c\/strong\u003e\u003cbr\u003eThe kit includes M2.5*14 screws (4 pieces) and M3*5 screws (1 piece), along with M2*8, M2*5, M1.7*4, M2*7.6 and M1.7*4.5 screws in the arm assortment. The screws are sized for attaching the arms to the servo.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat material is the set made from?\u003c\/strong\u003e\u003cbr\u003eThe arms are made from plastic, with a PC plastic type noted. The set also carries a CE certification mark.\u003c\/p\u003e","brand":"OnlyTenBucks.com","offers":[{"title":"E","offer_id":52920551309592,"sku":"14:496#E","price":10.99,"currency_code":"USD","in_stock":true},{"title":"D","offer_id":52920551342360,"sku":"14:200002984#D","price":10.99,"currency_code":"USD","in_stock":true},{"title":"A","offer_id":52920551375128,"sku":"14:29#A","price":10.99,"currency_code":"USD","in_stock":true},{"title":"C","offer_id":52920551407896,"sku":"14:10#C","price":10.99,"currency_code":"USD","in_stock":true},{"title":"B","offer_id":52920551440664,"sku":"14:366#B","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/3646\/0824\/files\/S529d881f082c4a0dbf1e5dbd89cb9e084.webp?v=1792178749","url":"https:\/\/onlytenbucks.com\/products\/25t-28t-servo-arm-part-double-head-round-type-steering-gear-set-accessories-for-emax-jx-spt-dspower-hd-20kg-30kg-rc-helicopter","provider":"OnlyTenBucks.com","version":"1.0","type":"link"}