{"title":"Direct Drive Servo Motor DDSM315 – Low Noise, Wide Speed, RC Car & Robot Compatible","handle":"direct-drive-servo-motor-ddsm315-low-noise-wide-speed-rc-car-robot-compatible-ws-31266","url":"/products/direct-drive-servo-motor-ddsm315-low-noise-wide-speed-rc-car-robot-compatible-ws-31266","description":"The DDSM315 is a direct drive servo motor from Waveshare that combines a brushless outer rotor motor (PMSM), encoder, and servo driver into a single compact unit. By eliminating a traditional gearbox reducer, it achieves zero-backlash positioning with ultra-low noise (≤50 dB), making it well suited for robotics and RC vehicle applications.\n\nThe motor communicates via RS485 bus, allowing multiple units to be coordinated on a single communication line. It supports current loop, position loop, and velocity loop operating modes, and includes Hall position detection and over-current protection.\n\nKey Features\n\n\nDirect Drive (No Gearbox) – Zero backlash, high precision, reduced mechanical complexity\n\nAll-in-One Design – PMSM motor, 12-bit encoder, and servo driver integrated\n\nUltra-Low Noise – ≤50 dB during operation\n\nRS485 Bus Communication – Daisy-chain multiple motors on one bus\n\nThree Operating Modes – Current loop, position loop, and velocity loop\n\nIP54 Rated – Dust and splash-water protection\n\nOver-Current Protection – With Hall position detection\n\n\nSpecifications\n\n\nRated Voltage – 18 V DC (compatible with 5S LiPo)\n\nSpeed Constant – 17.5 RPM/V\n\nNo-Load Speed – 315 ±10 RPM\n\nRated Speed – 200 RPM\n\nRated Torque – 0.55 N·m\n\nStall Torque – 1.1 N·m\n\nEncoder Resolution – 12-bit\n\nCommunication – RS485 bus\n\nProtection Rating – IP54\n\nOperating Temperature – −20°C to 45°C\n\n\nIdeal For\n\nRC car and vehicle builds\nHome and commercial robotics\nUGV robot chassis\nMulti-motor coordinated systems\n\n\nPackage Contents\n\n1× DDSM315 direct drive servo motor\n\n\nResources\n\nWaveshare Wiki — DDSM315\n","vendor":"Waveshare","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":394,"title":"Default Title","sku":"WS-31266","mpn":"31266","price":88.0,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}