{"publisher":"Xirkit — the structured parts marketplace","canonical":"https://www.xirkit.io/products/pololu-4757-6-3-1-37d-gearmotor-0f8c","markdown":"https://www.xirkit.io/products/pololu-4757-6-3-1-37d-gearmotor-0f8c/data.md","mcp":"https://www.xirkit.io/mcp","note":"Every value is traced to a cited source (see sources and per-value src). Null means unknown, never zero.","record":{"id":"0f8cd596-49d0-5e45-8037-7e64e0fb73f2","mpn":"4757","name":"Pololu #4757 6.3:1 37D Gearmotor","manufacturer":"Pololu","family":"motor","summary":"Pololu #4757 is a 12 V brushed DC 37D metal gearmotor with 6.25:1 reduction (helical first stage), 1600 rpm no-load output, 3.0 kg·cm extrapolated stall torque, 5.5 A extrapolated stall current, 6 mm D-shaft, a 64 CPR Hall quadrature encoder on the motor shaft (400 CPR at the output), 37 mm × 65 mm, 190 g.","schema_version":"3.0","revision":null,"tags":["motor","gearmotor motor","pololu","gearmotor","37d gearmotor","pololu 37d","12v gearmotor with encoder","64 cpr encoder","brushed dc motor","robotics","6.3:1 gearmotor"],"sources":[{"other":{},"id":"datasheet","url":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf","title":"Pololu #4757 6.3:1 37D Gearmotor datasheet","publisher":"Pololu","kind":"datasheet","retrieved_at":"2026-10-01T22:40:19+00:00","field_paths":["spec.compliance.certifications","spec.constraints.electrical.supply_voltage_nominal_v","spec.geometry.body_diameter_mm","spec.geometry.body_length_mm","spec.geometry.cad.bbox.height_mm","spec.geometry.cad.bbox.length_mm","spec.geometry.cad.bbox.width_mm","spec.geometry.cad.envelope_complete","spec.geometry.cad.mesh_path","spec.geometry.cad.step_path","spec.geometry.cad.verification","spec.geometry.dimensions.height_mm","spec.geometry.dimensions.length_mm","spec.geometry.dimensions.width_mm","spec.geometry.mounting_holes","spec.geometry.other.weight_g","spec.geometry.shaft_diameter_mm","spec.geometry.shaft_extension_mm","spec.provides.features","spec.provides.feedback","spec.provides.gear_ratio","spec.provides.motor_type","spec.provides.no_load_speed_rpm","spec.provides.output_type","spec.provides.stall_torque_nm","spec.usage.connectors","spec.usage.pinout","spec.usage.pinout_complete","spec.usage.requirements.driver_required","spec.usage.requirements.no_load_current_a","spec.usage.requirements.rated_voltage_v","spec.usage.requirements.stall_current_a"],"notes":"sha256 c83181cc9e00af2a97788029dc364f114d672d4eb33c2dd4340b1676489920b1"},{"other":{},"id":"offer0","url":"https://www.pololu.com/product/4757","title":"www.pololu.com listing","publisher":null,"kind":"distributor","retrieved_at":"2026-10-01T22:42:59+00:00","field_paths":["offers"],"notes":null}],"assets":[{"other":{},"kind":"datasheet","url":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf","label":"Datasheet","verification":"manufacturer","notes":null},{"other":{},"kind":"image","url":"https://a.pololu-files.com/picture/0J10653.1200.jpg?021e5edc1859c2bb09a691488d48b6d0","label":"Pololu #4757 6.3:1 37D gearmotor with encoder","verification":"manufacturer","notes":"inspected: silver round motor and gearbox with black encoder end cap, 6 mm D shaft, mounting face, and six color-coded leads on a 1x6 black connector"},{"other":{},"kind":"cad","url":"pololu-4757.step","label":"STEP (generated from datasheet drawing)","verification":"generated","notes":"cad_check passed"}],"offers":[{"other":{"sku":"4757","price_breaks":[]},"supplier":"www.pololu.com","url":"https://www.pololu.com/product/4757","currency":"USD","unit_price":60.95,"stock_status":"in_stock","region":"US","minimum_quantity":null,"checked_at":"2026-10-01T22:42:59+00:00","lead_time_days_min":null,"lead_time_days_max":null,"destination":"US","destination_postal_code":null,"notes":null,"price_basis":"listed","unit_price_max":null}],"best_for":[{"other":{},"label":"Mobile robot drive trains","reason":"37 mm 12 V gearmotor at 6.3:1 with a built-in quadrature encoder — closed-loop drive for mid-size wheeled robots.","basis":"engineering_inference"}],"children":[],"spec":{"other":{},"usage":{"other":{},"pinout":[{"id":"RED","kind":"motor_plus","label":"Red","notes":"motor power terminal","other":{},"connector":"1x6 female 2.54 mm header","functions":["red"],"electrical":{}},{"id":"BLACK","kind":"motor_minus","label":"Black","notes":"motor power terminal","other":{},"connector":"1x6 female 2.54 mm header","functions":["black"],"electrical":{}},{"id":"GREEN","kind":"ground","label":"Green","notes":"encoder ground","other":{},"connector":"1x6 female 2.54 mm header","functions":["ground"],"voltage_v":0,"electrical":{}},{"id":"BLUE","kind":"supply","label":"Blue","notes":"encoder Vcc, 3.5 to 20 V","other":{},"connector":"1x6 female 2.54 mm header","functions":["blue"],"electrical":{}},{"id":"YELLOW","kind":"signal","label":"Yellow","notes":"encoder quadrature A output","other":{},"connector":"1x6 female 2.54 mm header","functions":["yellow"],"electrical":{}},{"id":"WHITE","kind":"signal","label":"White","notes":"encoder quadrature B output","other":{},"connector":"1x6 female 2.54 mm header","functions":["white"],"electrical":{}}],"derived":{},"connectors":[{"id":"motor_encoder","kind":"1x6 female header, 2.54 mm pitch, six 20 cm color-coded leads","other":{},"pitch_mm":2.54,"pin_count":6}],"pin_mappings":[],"requirements":{"other":{},"data_inputs":[],"power_inputs":[],"driver_required":"brushed DC H-bridge motor driver sized above the 5.5 A extrapolated stall current","rated_voltage_v":12,"stall_current_a":5.5,"no_load_current_a":0.2},"pinout_complete":true},"geometry":{"cad":{"bbox":{"width_mm":37,"height_mm":81,"length_mm":37},"features":[],"mesh_path":"pololu-4757.stl","step_path":"pololu-4757.step","assumptions":[],"verification":"generated","envelope_complete":true},"other":{"weight_g":190},"derived":{},"dimensions":{"other":{},"width_mm":37,"height_mm":81,"length_mm":37},"feature_boxes":[],"body_length_mm":65,"mounting_holes":[{"x_mm":8.949,"y_mm":0,"other":{},"diameter_mm":3},{"x_mm":4.475,"y_mm":7.751,"other":{},"diameter_mm":3},{"x_mm":-4.475,"y_mm":7.751,"other":{},"diameter_mm":3},{"x_mm":-8.949,"y_mm":0,"other":{},"diameter_mm":3},{"x_mm":-4.475,"y_mm":-7.751,"other":{},"diameter_mm":3},{"x_mm":4.475,"y_mm":-7.751,"other":{},"diameter_mm":3}],"body_diameter_mm":37,"shaft_diameter_mm":6,"shaft_extension_mm":16},"provides":{"other":{},"derived":{},"features":["First gearbox stage uses helical gears to reduce noise and vibration and improve efficiency","Integrated Hall-effect quadrature encoder senses a magnetic disc on the motor shaft","Stall values are theoretical extrapolations and should not be used as continuous ratings"],"feedback":"Hall quadrature encoder; 64 CPR at motor shaft, 400 CPR at output shaft","gear_ratio":6.25,"motor_type":"gearmotor","output_type":"rotary","capabilities":[],"stall_torque_nm":0.2942,"no_load_speed_rpm":1600},"compliance":{"other":{},"derived":{},"certifications":["RoHS 3 compliant"]},"constraints":{"other":{},"derived":{},"thermal":{"other":{}},"electrical":{"other":{},"supply_voltage_nominal_v":12}}},"other":null,"source_type":"pdf","source_ref":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf","datasheet":{"cad":{"bbox":{"max":[18.5,18.5,81],"min":[-18.5,-18.5,0],"width_mm":37,"height_mm":81,"length_mm":37},"check":{"failed":[],"passed":true},"expected":[{"d":37,"x":0,"y":0,"axis":"z","name":"body","what":"cylinder"},{"d":6,"x":0,"y":0,"axis":"z","name":"shaft","what":"cylinder"},{"d":3,"x":8.949,"y":0,"axis":"z","name":"H1","what":"hole"},{"d":3,"x":4.475,"y":7.751,"axis":"z","name":"H2","what":"hole"},{"d":3,"x":-4.475,"y":7.751,"axis":"z","name":"H3","what":"hole"},{"d":3,"x":-8.949,"y":0,"axis":"z","name":"H4","what":"hole"},{"d":3,"x":-4.475,"y":-7.751,"axis":"z","name":"H5","what":"hole"},{"d":3,"x":4.475,"y":-7.751,"axis":"z","name":"H6","what":"hole"},{"what":"envelope_z","value":81}],"archetype":"round_can_motor","mesh_path":"/Users/sumeet/Documents/Xirkit Parent/XirkitOnboard/work/pololu-4757/07_cad/part.stl","step_path":"/Users/sumeet/Documents/Xirkit Parent/XirkitOnboard/work/pololu-4757/07_cad/part.step","views_png":"/Users/sumeet/Documents/Xirkit Parent/XirkitOnboard/work/pololu-4757/07_cad/views.png","export_stl":"pololu-4757.stl","assumptions":[],"export_step":"pololu-4757.step","envelope_complete":true},"chips":[],"fields":{"weight":{"src":{"page":39,"quote":"| Weight: | 190 g |","method":"table","table_id":"39_1"},"unit":"g","value":190},"feedback":{"src":{"page":21,"quote":"resolution of 64 counts per revolution (CPR) of the motor shaft and 400 CPR","method":"text"},"unit":null,"value":"Hall quadrature encoder; 64 CPR at motor shaft, 400 CPR at output shaft"},"mounting":{"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws","method":"text"},"unit":null,"value":"six threaded M3 face-mounting holes on a regular hexagon with 15.5 mm adjacent-center spacing"},"connector":{"src":{"page":3,"quote":"The motor/encoder has six color-coded, 20 cm ( ″) lea ter inate a e ale connector with a 2.54 mm ( ″)","method":"text"},"unit":null,"value":"1x6 female header, 2.54 mm pitch, with 20 cm leads"},"gear_ratio":{"src":{"page":40,"quote":"| Gear ratio: | 6.25:1 |","method":"table","table_id":"40_1"},"unit":null,"value":6.25},"motor_type":{"src":{"page":21,"quote":"powerful 12V brushed DC motor with a 6.25:1 metal gearbox","method":"text"},"unit":null,"value":"gearmotor"},"stall_torque":{"src":{"page":40,"quote":"| Stall torque @ 12V: | 3.0 kg·cm 3 |","method":"table","table_id":"40_1"},"orig":{"unit":"kg·cm","value":3},"unit":"N·m","value":0.2941995},"no_load_speed":{"src":{"page":40,"quote":"| No-load speed @ 12V: | 1600 rpm |","method":"table","table_id":"40_1"},"unit":"rpm","value":1600},"rated_voltage":{"src":{"page":1,"quote":"operation at 12 V, though in general, this kind of motor can run at voltages above and below the nominal voltage, and","method":"text"},"unit":"V","value":12},"stall_current":{"src":{"page":40,"quote":"| Stall current @ 12V: | 5.5 A 3 |","method":"table","table_id":"40_1"},"unit":"A","value":5.5},"driver_required":{"src":{"page":21,"quote":"| 12 V | 1600 RPM, 200 mA | 3.0 kg⋅cm (42 oz⋅in), 5.5 A |","method":"table","table_id":"21_3"},"unit":null,"value":"brushed DC H-bridge motor driver sized above the 5.5 A extrapolated stall current"},"no_load_current":{"src":{"page":40,"quote":"| No-load current @ 12V: | 0.2 A |","method":"table","table_id":"40_1"},"unit":"A","value":0.2}},"groups":{"all":["RED","BLACK","GREEN","BLUE","YELLOW","WHITE"]},"source":{"url":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf","pages":51,"sha256":"c83181cc9e00af2a97788029dc364f114d672d4eb33c2dd4340b1676489920b1","onboarded_at":"2026-10-01T22:43:14+00:00"},"coverage":{"pct":81.8,"score":"27/33","passed":true,"explained_nulls":["rated_torque","rated_speed","rated_current","operating_temperature"]},"entities":[{"id":"RED","attrs":{"kind":"motor_plus","label":"Red","colour":"red","connector":"1x6 female 2.54 mm header","designator":"RED","description":"motor power terminal"},"sources":[{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"Red Motor power","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"},{"id":"BLACK","attrs":{"kind":"motor_minus","label":"Black","colour":"black","connector":"1x6 female 2.54 mm header","designator":"BLACK","description":"motor power terminal"},"sources":[{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"Black Motor power","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"},{"id":"GREEN","attrs":{"kind":"ground","label":"Green","colour":"green","connector":"1x6 female 2.54 mm header","designator":"GREEN","description":"encoder ground"},"sources":[{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"Green Encoder ground","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"},{"id":"BLUE","attrs":{"kind":"supply","label":"Blue","colour":"blue","connector":"1x6 female 2.54 mm header","designator":"BLUE","description":"encoder Vcc, 3.5 to 20 V"},"sources":[{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"Blue Encoder Vcc (3.5 V to 20 V)","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"},{"id":"YELLOW","attrs":{"kind":"signal","label":"Yellow","colour":"yellow","connector":"1x6 female 2.54 mm header","designator":"YELLOW","description":"encoder quadrature A output"},"sources":[{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"Yellow Encoder A output","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"},{"id":"WHITE","attrs":{"kind":"signal","label":"White","colour":"white","connector":"1x6 female 2.54 mm header","designator":"WHITE","description":"encoder quadrature B output"},"sources":[{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"}],"attr_src":{"kind":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"},"label":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"},"colour":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"},"connector":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"},"designator":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"},"description":{"page":4,"quote":"White Encoder B output","method":"text","fragment":"entities_leads.json"}},"functions":[],"electrical":{},"entity_type":"lead"}],"taxonomy":{"spec_table":{"role":"electrical_ratings","definition":"Specification table or list of motor values: step angle, rated voltage/current, winding resistance/inductance, holding/rated/stall torque, speed, phases, insulation, temperature, weight"},"site_chrome":{"role":"other","definition":"Website navigation, related-product and category lists, feedback, services, generator footers, blank pages"},"wiring_leads":{"role":"pins_or_terminals","definition":"Wiring diagram or text naming the motor leads/wires/terminals by colour or pin and which coil/phase/function each connects to"},"pricing_ordering":{"role":"ordering_commercial","definition":"Price, price breaks, item number, stock/status, ordering codes, compliance marks (RoHS/CE)"},"product_overview":{"role":"identity_overview","definition":"Store or catalog description of the motor: what it is, brand, typical use, compatible accessories"},"dimension_drawing":{"role":"mechanical_dimensions","definition":"Dimensioned drawing or text giving body size, flange, bolt pattern, pilot, shaft diameter/length/flat, lead length"},"performance_curve":{"role":"performance","definition":"Torque-speed, pull-out torque, current or efficiency curve, with its test conditions"}},"variants":{},"commercial":{"other":{},"lifecycle":"active","checked_at":"2026-10-01T22:42:59+00:00","compliance":["RoHS 3 compliant"],"ordering_codes":[{"code":"4757","description":"Pololu item number"}]},"mechanical":{"dims":{"body_d":{"src":{"page":39,"quote":"| Size: | 37D × 65L mm 1 |","method":"table","table_id":"39_1"},"note":"37D body diameter","unit":"mm","value":37},"shaft_d":{"src":{"page":39,"quote":"| Shaft diameter: | 6 mm 2 |","method":"table","table_id":"39_1"},"unit":"mm","value":6},"shaft_len":{"src":{"page":21,"quote":"16 mm-long, 6 mm-diameter D-shaped output shaft","method":"text"},"unit":"mm","value":16},"body_length":{"src":{"page":39,"quote":"| Size: | 37D × 65L mm 1 |","method":"table","table_id":"39_1"},"note":"end-cap-equipped body length","unit":"mm","value":65},"mount_pattern":{"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws","method":"text"},"value":"six M3 threaded face holes in a regular hexagon, 15.5 mm adjacent-center spacing"},"shaft_profile":{"src":{"page":21,"quote":"D-shaped output shaft","method":"text"},"value":"D"},"face_hole_depth":{"src":{"page":24,"quote":"Warning : Do not screw too far into the mounting holes as the screws can hit the gears. We recommend screwing no more than 3mm (0.12″) into the screw hole.","method":"text"},"note":"conservative CAD depth based on manufacturer maximum recommended screw engagement","unit":"mm","value":3}},"kind":"mechanical","holes":[{"d":3,"x":8.949,"y":0,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H1","depth":3},{"d":3,"x":4.475,"y":7.751,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H2","depth":3},{"d":3,"x":-4.475,"y":7.751,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H3","depth":3},{"d":3,"x":-8.949,"y":0,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H4","depth":3},{"d":3,"x":-4.475,"y":-7.751,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H5","depth":3},{"d":3,"x":4.475,"y":-7.751,"src":{"page":26,"quote":"six mounting holes evenly spaced around the outer edge threaded for M3 screws; centers of neighboring holes are 15.5 mm apart","method":"derived"},"face":"front","name":"H6","depth":3}],"units":"mm","origin":"output face at z=0; body envelope excludes flexible leads","features":[],"archetype":"round_can_motor","assumptions":{}},"page_index":[{"page":1,"tags":["product_overview","spec_table"],"primary":"spec_table"},{"page":2,"tags":["dimension_drawing"],"primary":"dimension_drawing"},{"page":3,"tags":["product_overview"],"primary":"product_overview"},{"page":4,"tags":["wiring_leads"],"primary":"wiring_leads"},{"page":5,"tags":["performance_curve"],"primary":"performance_curve"},{"page":6,"tags":["performance_curve"],"primary":"performance_curve"},{"page":7,"tags":["performance_curve"],"primary":"performance_curve"},{"page":8,"tags":["performance_curve"],"primary":"performance_curve"},{"page":9,"tags":["performance_curve"],"primary":"performance_curve"},{"page":10,"tags":["performance_curve"],"primary":"performance_curve"},{"page":11,"tags":["performance_curve"],"primary":"performance_curve"},{"page":12,"tags":["performance_curve"],"primary":"performance_curve"},{"page":13,"tags":["performance_curve"],"primary":"performance_curve"},{"page":14,"tags":["performance_curve"],"primary":"performance_curve"},{"page":15,"tags":["performance_curve"],"primary":"performance_curve"},{"page":16,"tags":["performance_curve"],"primary":"performance_curve"},{"page":17,"tags":["performance_curve"],"primary":"performance_curve"},{"page":18,"tags":["performance_curve"],"primary":"performance_curve"},{"page":19,"tags":["product_overview"],"primary":"product_overview"},{"page":20,"tags":["site_chrome"],"primary":"site_chrome"},{"page":21,"tags":["dimension_drawing","product_overview","pricing_ordering"],"primary":"pricing_ordering"},{"page":22,"tags":["product_overview","spec_table"],"primary":"spec_table"},{"page":23,"tags":[],"primary":"spec_table"},{"page":24,"tags":["dimension_drawing"],"primary":"dimension_drawing"},{"page":25,"tags":["wiring_leads"],"primary":"wiring_leads"},{"page":26,"tags":["product_overview"],"primary":"product_overview"},{"page":27,"tags":[],"primary":"spec_table"},{"page":28,"tags":["product_overview","site_chrome"],"primary":"site_chrome"},{"page":29,"tags":["site_chrome"],"primary":"site_chrome"},{"page":30,"tags":["product_overview","site_chrome"],"primary":"site_chrome"},{"page":31,"tags":["site_chrome"],"primary":"site_chrome"},{"page":32,"tags":["site_chrome"],"primary":"site_chrome"},{"page":33,"tags":["site_chrome"],"primary":"site_chrome"},{"page":34,"tags":["site_chrome"],"primary":"site_chrome"},{"page":35,"tags":["site_chrome"],"primary":"site_chrome"},{"page":36,"tags":["product_overview"],"primary":"product_overview"},{"page":37,"tags":["site_chrome"],"primary":"site_chrome"},{"page":38,"tags":["dimension_drawing","product_overview","pricing_ordering"],"primary":"pricing_ordering"},{"page":39,"tags":["dimension_drawing"],"primary":"dimension_drawing"},{"page":40,"tags":["spec_table"],"primary":"spec_table"},{"page":41,"tags":["spec_table"],"primary":"spec_table"},{"page":42,"tags":["dimension_drawing","spec_table"],"primary":"spec_table"},{"page":43,"tags":[],"primary":"none_of_these"},{"page":44,"tags":["product_overview","site_chrome"],"primary":"site_chrome"},{"page":45,"tags":["site_chrome"],"primary":"site_chrome"},{"page":46,"tags":["product_overview","site_chrome"],"primary":"site_chrome"},{"page":47,"tags":["site_chrome"],"primary":"site_chrome"},{"page":48,"tags":["site_chrome"],"primary":"site_chrome"},{"page":49,"tags":["site_chrome"],"primary":"site_chrome"},{"page":50,"tags":["site_chrome"],"primary":"site_chrome"},{"page":51,"tags":["site_chrome"],"primary":"site_chrome"}],"performance":[],"schema_name":"datasheet-1","part_ratings":{}},"use_cases":["mobile-robot-drive"],"commercial":{"other":{},"lifecycle":"active","checked_at":"2026-10-01T22:42:59+00:00","compliance":["RoHS 3 compliant"],"ordering_codes":[{"code":"4757","description":"Pololu item number"}]},"assembly_label":"Actuator","assembly_level":2,"search_aliases":["4757","Pololu 4757","37D 6.3:1 gearmotor with encoder"],"design":{"assets":[{"other":{},"kind":"datasheet","url":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf","label":"Datasheet","verification":"manufacturer","notes":null,"resolved_url":"https://www.pololu.com/file/0J1706/pololu-37d-metal-gearmotors.pdf"},{"other":{},"kind":"image","url":"https://a.pololu-files.com/picture/0J10653.1200.jpg?021e5edc1859c2bb09a691488d48b6d0","label":"Pololu #4757 6.3:1 37D gearmotor with encoder","verification":"manufacturer","notes":"inspected: silver round motor and gearbox with black encoder end cap, 6 mm D shaft, mounting face, and six color-coded leads on a 1x6 black connector","resolved_url":"https://a.pololu-files.com/picture/0J10653.1200.jpg?021e5edc1859c2bb09a691488d48b6d0"},{"other":{},"kind":"cad","url":"pololu-4757.step","label":"STEP (generated from datasheet drawing)","verification":"generated","notes":"cad_check passed","resolved_url":"https://wlrumvsjnliyuuvzwnrt.supabase.co/storage/v1/object/public/geometry/pololu-4757.step"}],"cad":{"verification":"generated","envelope_complete":true,"assumptions":[],"step_path":"pololu-4757.step","mesh_path":"pololu-4757.stl","footprint_svg_path":null,"bbox":{"length_mm":37,"width_mm":37,"height_mm":81},"features":[],"step_url":"https://wlrumvsjnliyuuvzwnrt.supabase.co/storage/v1/object/public/geometry/pololu-4757.step","mesh_url":"https://wlrumvsjnliyuuvzwnrt.supabase.co/storage/v1/object/public/geometry/pololu-4757.stl","footprint_svg_url":null},"limitations":["Generated geometry is an approximate mechanical envelope; inspect original manufacturer CAD when available.","Generated footprint_svg_path is an outline, not a verified electrical land pattern.","Xirkit does not run fit checks; download step_url and test fit against your own enclosure."]}}}