{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX0400120401D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX0400120401D","canonicalUrl":"https://aoctrl.com/schneider/GBX0400120401D","factsUrl":"https://aoctrl.com/api/mcp/products/GBX0400120401D","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX0400120401D planetary gearbox, straight teeth, 40 mm diameter, 12:1 reduction ratio, 20 N.m continuous output torque, 94% efficiency, 35 arcmin backlash.","salesMarkdown":"## Torque and ratio — the real selection numbers The GBX0400120401D: This is a 40 mm-diameter planetary gearbox with a 12:1 reduction ratio and straight-cut teeth. The continuous output torque is 20 N.m, with a maximum intermittent torque of 32 N.m — the difference is the margin for acceleration peaks and short overloads. For a continuous-duty application, size the load to stay under the 20 N.m figure; the 32 N.m ceiling covers starting and emergency stops. Efficiency is listed at 94 %, which is typical for a single-stage planetary of this ratio. That figure already accounts for the gear mesh and bearing losses at rated load — the input power required is the output power divided by 0.94, plus a small margin for the no-load spin loss. ## Mechanical limits — radial and axial forces, service life The output shaft carries a maximum radial force of 200 N and a maximum axial force of 200 N, both rated at 100 rpm for a 10,000-hour life at 30 °C. If you need the full 30,000-hour service life, those force limits drop to 160 N each — the bearing L10 life is the constraint, not the gear teeth. The torsional rigidity is 1.1 N.m/arcmin, which matters when the load has a resonant frequency near the drive train's natural frequency. The housing is black anodized aluminium, shaft material is C45 steel. The shaft output seal carries an IP54 rating — splash-proof, not submersible. Mounting position is unrestricted, and the gearbox is lubricated for life, so no maintenance schedule for oil changes. ## Noise and backlash — fit for precision indexing Maximum torsional backlash is 35 arc.min. That is a standard-precision grade — fine for conveyor drives and general positioning, but not for a servo axis that reverses direction under load. Noise level is 55 dB at 1 m, no-load, which is quiet enough for an indoor machine enclosure without acoustic treatment.","metaTitle":"Schneider Electric GBX0400120401D planetary gearbox, 12:1","metaDescription":"Schneider Electric GBX0400120401D planetary gearbox, 12:1 reduction, 20 N.m continuous torque, 94% efficiency, 55 dB noise. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"title":"GBX0400120401D","Efficiency":"94 %","Noise level":"55 dB at 1 m, no-load","description":"gearbox with straight teeth GBX- Ø 40 mm- reduction 12:1- < 35arcmin- 20 N.m","Gear box type":"Straight teeth","Housing colour":"Black","Shaft material":"C 45","Reduction ratio":"12:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Moment Of Inertia":"0.029 g.cm²","Mounting position":"Any position","Compatibility code":"GBX","Torsional rigidity":"1.1 N.m/arcmin","Maximum output torque":"32 N.m","Service life in hours":"30000 h at 100 rpm at 30 °C","Additional information":"Lubricated for life","Maximum axial force Fa":"200 N at 100 rpm, during 10000 hour at 30°C 160 N at 100 rpm, during 30000 hour at 30°C","IP degree of protection":"Shaft output: IP54","Maximum radial force Fr":"200 N at 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C 160 N at 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C","Continuous output torque":"20 N.m","Gearbox external diameter":"40 mm","Product or component type":"Planetary gearbox","Maximum torsional backlash":"35 arc.min","Ambient Temperature For Operation":"-25...90 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4ad143457881bce848088ecd026940bd.pdf","sourceUrl":"https://www.se.com/nl/en/product/GBX0400120401D/gearbox-with-straight-teeth-gbx-ø-40-mm-reduction-121-35arcmin-20-n-m/"},"ai":{"faq":[{"question":"What is the continuous torque rating of GBX0400120401D?","answer":"The continuous output torque is 20 N.m, with a maximum intermittent rating of 32 N.m. The 12:1 reduction ratio means the input torque required is roughly 1/12 of the output torque, divided by the 94 % efficiency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX0400120401D","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/GBX0400120401D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}