{ "id": "mo-maxon-ec45-flat-70w-397172", "name": "maxon EC 45 flat 70 W, 24 V, Hall sensors", "subcategory": "precision-dc-bldc", "brand": "maxon", "mpn": "397172", "summary": "42.8 mm flat brushless outrunner with Hall sensors, a common pick for compact high-torque joints and gripper drives; marked NRND by maxon.", "maker": { "name": "maxon", "country": "CH", "role": "brand" }, "made_in": "unknown", "specs": { "od_mm": { "label": "Diameter", "value": "42.8 mm", "num": 42.8, "unit": "mm" }, "voltage_v": { "label": "Nominal voltage", "value": "24 V", "num": 24, "unit": "V" }, "nominal_torque_mnm": { "label": "Nominal torque", "value": "128 mNm", "num": 128, "unit": "mNm" }, "no_load_speed_rpm": { "label": "No-load speed", "value": "6110 rpm", "num": 6110, "unit": "rpm" }, "power_w": { "label": "Power rating", "value": "70 W", "num": 70, "unit": "W" }, "mass_g": { "label": "Weight", "value": "141 g", "num": 141, "unit": "g" }, "nominal_current_a": { "label": "Nominal current", "value": "3.21 A", "num": 3.21, "unit": "A" }, "lifecycle": { "label": "Lifecycle", "value": "NRND (Not Recommended for New Designs)", "num": null, "unit": "" } }, "price": [ { "qty": 1, "usd": 204.12, "kind": "list", "source": "https://www.maxongroup.us/maxon/view/product/397172", "as_of": "2026-10-29" } ], "moq": 1, "lead_time": "unknown", "hts": "unknown", "compliance": { "ndaa": "unknown", "blue_uas": "unknown", "fcc": "n/a", "notes": "" }, "links": { "product": "https://www.maxongroup.us/maxon/view/product/397172", "datasheet": "https://www.maxongroup.us/medias/sys_master/root/8833813184542/19-EN-264.pdf", "cad": "https://www.maxongroup.us/maxon/view/product/397172" }, "equivalents": [ "mo-maxon-ec-i-40-70w-449470" ], "pairs_with": [ "mo-elmo-gold-whistle-20-100", "mo-ti-boostxl-drv8323rs" ], "maglev": { "custom": "Shenzhen hollow-cup and BLDC makers in Maglev's directory (RBT Motor, Constar, Hengdrive, Wanzhida) list custom motors; none benchmarked against this part.", "directory_ref": null }, "sources": [ { "url": "https://www.maxongroup.us/maxon/view/product/397172", "what": "specs, USD list price (1-4 tier), STEP CAD offered, NRND status" } ], "confidence": "VERIFIED", "category": "motors", "subcategory_title": "Small Precision DC & BLDC Motors", "icon": "outrunner", "image": { "url": "https://parts.trymaglev.com/img/mo-maxon-ec45-flat-70w-397172.webp", "thumb": "https://parts.trymaglev.com/img/t/mo-maxon-ec45-flat-70w-397172.webp", "source_image": "https://www.maxongroup.com/medias/sys_master/root/8798758633502/PRODUKTBILD-EC45-FLACH-70W-397172-Detail.jpg", "source_page": "https://www.maxongroup.us/maxon/view/product/397172", "background": "removed (Apple Vision)", "as_of": "2026-10-29" }, "origin": { "code": "CH", "basis": "hq" }, "hts_resolved": { "code": "8501.31.20.00", "typical": true, "key": "dc-motors-37.5-74.6w", "basis": "rated output 70 W", "confidence": "high" }, "us_duty_by_origin": { "as_of": "2026-10-29", "rates": [ { "origin": "CN", "duty_pct": 40.3, "possible_pct": 0, "usmca": false }, { "origin": "TW", "duty_pct": 10, "possible_pct": 0, "usmca": false }, { "origin": "VN", "duty_pct": 15.3, "possible_pct": 0, "usmca": false }, { "origin": "IN", "duty_pct": 12.8, "possible_pct": 0, "usmca": false }, { "origin": "JP", "duty_pct": 12.5, "possible_pct": 0, "usmca": false }, { "origin": "KR", "duty_pct": 12.5, "possible_pct": 0, "usmca": false }, { "origin": "DE", "duty_pct": 10, "possible_pct": 0, "usmca": false }, { "origin": "MX", "duty_pct": 12.8, "possible_pct": 0, "usmca": true }, { "origin": "US", "duty_pct": 0, "possible_pct": 0, "usmca": false } ] }, "url": "https://parts.trymaglev.com/p/mo-maxon-ec45-flat-70w-397172/", "markdown": "https://parts.trymaglev.com/p/mo-maxon-ec45-flat-70w-397172/index.md", "equivalents_detail": [ { "id": "mo-maxon-ec-i-40-70w-449470", "name": "maxon EC-i 40, 70 W, 36 V, Hall sensors", "brand": "maxon", "mpn": "449470", "category": "motors", "subcategory": "precision-dc-bldc", "summary": "40 mm internal-rotor brushless motor with high torque density, used in compact robot joints and exoskeleton drives.", "origin": "CH", "origin_basis": "hq", "price_usd": 343.44, "price_qty": 1, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/mo-maxon-ec-i-40-70w-449470.webp", "url": "https://parts.trymaglev.com/p/mo-maxon-ec-i-40-70w-449470/", "json": "https://parts.trymaglev.com/api/parts/mo-maxon-ec-i-40-70w-449470.json" } ], "pairs_with_detail": [ { "id": "mo-elmo-gold-whistle-20-100", "name": "Elmo Gold Whistle 20/100 Servo Drive", "brand": "Elmo Motion Control", "mpn": "unknown", "category": "motors", "subcategory": "drivers", "summary": "PCB-mount 55 x 46 mm Gold-family servo drive running from a single 12-95 V supply, 1.6 kW continuous in the 20/100 rating, with STO and EtherCAT/CANopen.", "origin": "IL", "origin_basis": "hq", "price_usd": null, "price_qty": null, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/mo-elmo-gold-whistle-20-100.webp", "url": "https://parts.trymaglev.com/p/mo-elmo-gold-whistle-20-100/", "json": "https://parts.trymaglev.com/api/parts/mo-elmo-gold-whistle-20-100.json" }, { "id": "mo-ti-boostxl-drv8323rs", "name": "TI BOOSTXL-DRV8323RS Three-Phase Driver BoosterPack", "brand": "Texas Instruments", "mpn": "BOOSTXL-DRV8323RS", "category": "motors", "subcategory": "drivers", "summary": "15 A three-phase BLDC power stage EVM (DRV8323RS gate driver + CSD88599Q5DC NexFETs) that plugs onto a LaunchPad MCU for FOC/InstaSPIN development.", "origin": "US", "origin_basis": "hq", "price_usd": 86.9, "price_qty": 1, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/mo-ti-boostxl-drv8323rs.webp", "url": "https://parts.trymaglev.com/p/mo-ti-boostxl-drv8323rs/", "json": "https://parts.trymaglev.com/api/parts/mo-ti-boostxl-drv8323rs.json" } ] }